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The Future Of The Manual Transmission

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  • lilengineerboylilengineerboy Member Posts: 4,116
    With a manual transmission there is a direct coupling of power from the engine's crankshaft through the clutch (which should slip very little if at all allowing its in good shape) and into gears. The manual transmissions in my vehicles use 5w30 motor oil for their transmissions which seems to minimize the parasitic losses from the fluid 5w30 is pretty thin relative to 80/90 gear oil.
    One of my cars used ATF in a manual transmission, so I don't know what to make of that. I think that fluid cushions the gears somehow.
    A regular auto never has a direct coupling, it is always using hydraulic pressure. A CVT works with belts and pulleys etc to vary the gear ratio. It has to be relatively efficient, it seems like MPGs are better than an auto.
    I think doing a dyno test with a Mini with a 6 speed and a Mini with a CVT would be a good start, or with Altimas.
  • jeffyscottjeffyscott Member Posts: 3,855
    A regular auto never has a direct coupling

    What about the lock-up modes? I don't really know what the means, but had assumed it meant a solid connection was established.
  • spiritintheskyspiritinthesky Member Posts: 207
    I know several posters have touted the virtues of Audi's DSG transmission. I was in Germany in February and had the opportunity to attend a dinner with several Porsche and Audi engineers. Their comments were interesting.

    Although it was universally acknowledged that the DSG will be replacing/augmenting the Tiptronic in future Porsche offerings, it was similarly universally acknowledged that the manual transmission is here to stay, at least with Porsche. This isn't a matter of old school diehards fighting newfangled technology. I'm guessing that I was 10-15 years older than the average age at the table. Rather, it was the case of being honest about the subjective limitations of engineering in recreating a highly interactive, visceral driving experience.

    Every one of the Porsche engineers at the table (5), all of whom were either accomplished amateur or professional drivers, said that there is no other sports car by Porsche that they would rather own than the new GT3. RWD, not AWD - and it ONLY comes with a 6-speed manual.
  • jeffyscottjeffyscott Member Posts: 3,855
    Let's imagine a world where the only way to get a manual transmission is to buy an expensive sports car, such as a Porsche. In this world, a few old rich guys (you know who you are ;) ) are going along happily driving their manual transmission vehicles. But how many kids are learning to drive a manual? Will there be enough to keep even this remnant of a manual transmission market alive?

    Maybe these few old rich guys are teaching their kids. But how many of these kids will become old rich guys, themselves? How many of those will want to drive a manual, when they are old rich guys? Some will likely decide it is too much trouble, others will decide they would rather spend their time and money on a yacht, playing polo, gambling, or...

    Anyway, I don't think any of us naysayers are claiming there will be zero availability of manual transmissions in our lifetimes. Instead, we think we are seeing the beginning of the end of the manual transmission in mainstream cars.

    In 2020, yes, you will probably be able to buy a manual transmission in a Porsche. But, will you be able to buy one in a new Accord? My guess would be no.
  • lilengineerboylilengineerboy Member Posts: 4,116
    In 2020, the Porsche may be one of the few cars left that uses a non-renewable energy source, an internal combustion engine, or one that allows the driver to have any interaction at all.
    The other vehicles will be hybrid/biodiesel with telemetry that makes them autonomous.
  • daysailerdaysailer Member Posts: 720
    You certainly paint a bleak picture of the future ... I can only hope that you are wrong.
  • boaz47boaz47 Member Posts: 2,747
    Yes you can hope but deep down inside you know that is the direction we are headed. We see it in advertising and we see it with our news at ten. Such and such is coming out with a new hybrid. So and so is looking into Bio diesel. Ten years from now we will all have mandated Skid control, without a off switch. I don't think Nissan will wait till 2010 do you? It doesn't look like Lexus will with automatic parallel parking. The more EV a vehicle becomes the less it needs a Manual. As Nippon said his local Toyota dealer doesn't stock manuals.

    Right now I think it is a race between the US and Asia to see who will replace the manual in the mainstream first. I believe the US is ahead. But there has been a strong outcry by the wold press to find a solution to what people perceive as the oil crises and as we look at the proposed solutions most of them include less driver participation and more technology. Even when I look to one of Asia's solutions to the fuel problem I see lots of sub 1000cc city cars with CVT transmissions.

    The future only looks different to most people. It looks dark or bleak only if you use words like driving feel and human connection. You can put those words on a engineers drawing and you can't show them on a sales chart. Those words sure don't mean anything to the greenies of the world.
  • bristol2bristol2 Member Posts: 736
    "Those words sure don't mean anything to the greenies of the world."

    Hey! I resemble that remark.

    There is nothing bleak about greenies, bio diesel is not a threat to driving enjoyment! E320 cdi, corvette diesel, euro BMW 5d- all great performance vehicles.
    Plus the greenies want you in a manual. Better mileage, fewer manufactured parts.
  • british_roverbritish_rover Member Posts: 8,502
    Not really...

    As emission techonology moves forward it is easier to control what a cars engine does by computer if the computer is selecting the gears.

    Also automatics have almost the same mileage as manuals now. I think in a few cars the auto has higher mileage.
  • dudleyrdudleyr Member Posts: 3,469
    Generally the automatics only have higher milieage because of taller gearing. Ratio to ratio the manual will get better mileage.

    Cruise control is the culprit. The manual needs to be geared short enough to never loose speed going uphill fully loaded with cruise. That means the other 99.9% of the the time the engine is revving too high.
  • lilengineerboylilengineerboy Member Posts: 4,116
    Cruise control is the culprit. The manual needs to be geared short enough to never loose speed going uphill fully loaded with cruise. That means the other 99.9% of the the time the engine is revving too high.

    I would be okay with a buzzer or something that told me to downshift on steep grades using cruise control. Adaptive cruise control already had functions where it alerts drivers if it needs input from them.
  • daysailerdaysailer Member Posts: 720
    it is easier to control emissions or fuel consumption or braking or yaw or whatever via automation than to leave it to the vagaries of incompetent drivers. And that IS the point!

    For those that wish to have some influence over their own activities and the equipment that they own, and who can bring a modicum of competence to the table, automation is an incunberence. Automation holds everone to the lowest common denominator. Worse, automatic controls cannot avail themselves of the broader sensory abilities of a human driver nor can they anticipate conditions ahead and respond proactively. And automation tends to be one-dimensional: you can achieve minimum emissions OR minimum fuel consumption OR maximum acceleration OR whatever ... but automation is not good at prioritizing responses in a dynamic environment. Yes, I value low emissions and fuel consumption but when an emergency occurs, I don't give a whit about either.
  • boaz47boaz47 Member Posts: 2,747
    I have to agree with british_rover. Almost everything I have read about Emissions and controls indicates the greatest variable with certifying manual vehicles is the driver. Manual drivers have a much easier time of abusing the optimum RPMs so as to make their vehicles dirtier than designed. Engineers can design any form of automatic so as to control shift points to make the vehicle cleaner. Replace the computer controls with a human and your control goes out the window. I realize in an ideal world a manual could be used to do as well as a automatic in reguards to emissions but humans are far more unpredictable that computers.

    As the number of manuals in the US continue to drop off the number of young people learning to drive manuals will decrease. The fewer young drivers asking for manuals the fewer manuals will be offered. As we opt for multipal CD changers, power options and video display dash boards the pleasure of driving becomes less about feel and more about comfort and entertainment.

    The real culprit isn't cruise control, ABS, Rev-limiters, Skid control or any other automated device. It is the inability of the engineer to design a "average" driver. All you have to do to see the future of the manual is look at you local car lot, watch you local late night news or look at the direction Nissan seems to be going in. I can see someone posting in this room in ten years saying, Remember when Nissan offered manuals? Now they don't in the Maxima or Maruno. They offer the CVT in the Altima, and the Sentra and I for one wouldn't be surprised if neither of them offer a manual in ten years.
  • boaz47boaz47 Member Posts: 2,747
    The real question is will society support the things you value to a degree that the manufacturers will listen to the few that seem to care?
  • habitat1habitat1 Member Posts: 4,282
    "Cruise control is the culprit. The manual needs to be geared short enough to never loose speed going uphill fully loaded with cruise. That means the other 99.9% of the the time the engine is revving too high."

    I don't think cruise control is the culpret. The first couple of cars I owned didn't even have cruise control as an option and the manual transmission versions were still geared shorter than their automatic counterparts.

    But more importantly, I disagree about your "revving too high" comment. My 911S consistently gets 26+ mpg on the highway at 70 mph at 2,750 rpm. It's got plenty of get up and go for passing and achieves it's top speed of 182 at just short of it's 7,200 rpm redline (no, I haven't tested). Perfect gearing. The Corvette, in an attempt to get favorable EPA ratings, lugs along at about 1,500 rpm in 6th at 70 mph and has to be downshifted 1-2 gears for any acceleration. All to get an EPA rating of 28. Stupid gearing, IMO.

    My former Honda S2000 got 30-33 mpg on the highway at 70 mph with the top down and revving along at nearly 4,000 rpm.

    I was told when I bought my 1995 Nissan Maxima that, if I wanted the engine to last, I should not let the rpms drop below 2,000-2,400 rpm. That's where the engine starts to lug and fuel is not burned as efficiently and deposits form. At its 150k mile service, I had it compression tested and the results were within a couple percent of brand new car tolerances in each cylinders.

    I think the attept to eek out an extra 1 mpg at 70 mph by extra tall gearing is counterproductive in engines that redline at 7,000+ rpm and hit peak torque at 4,500 rpm. As a matter of fact, a friend with a Masters in ME from Duke went so far as to show calculations that put the peak efficiency of such engines at 35% to 40% of redline.
  • lilengineerboylilengineerboy Member Posts: 4,116
    All you can do is vote with your feet and your wallet.

    Boaz, California is a special case. With the emissions laws they are passing, everyone is going to be cruising around in electric Smart cars with their children and belongings strapped to the outside.

    Well, that or they will exacerbate the loophole for commercial vehicles and everyone will have a Kenworth SUV for their family car and a moped for the other car.
  • boaz47boaz47 Member Posts: 2,747
    Yes, you have hit the nail on the head. When I bought my last Pickup there were two reasons I bought the F-250. One was because I could get it in diesel and two was a 3/4 ton would be easier to smog even if i got the V-10 gas rig. I have seen people with big KWs converted to campers. It is simply too easy to get passed the CARB and CAFE restrictions. But with the new supream court rulings stating that the EPA 'must' become more involved I think the rest of the country will suffer our fate sooner or later.
  • daysailerdaysailer Member Posts: 720
    "vote with your feet..." Absolutely! And I intend to keep BOTH of my feet in play while driving.

    As our society spends inrreasing amounts of time in cars that are increasingly automatic, will we evolve into creatures with atrophied left legs? Or with enlarged thumbs from the use of paddle shifters? Or............
  • daysailerdaysailer Member Posts: 720
    Adopt California politics????

    Now THAT is doom and gloom!
  • habitat1habitat1 Member Posts: 4,282
    "Well, that or they will exacerbate the loophole for commercial vehicles and everyone will have a Kenworth SUV for their family car and a moped for the other car."

    You mean like the Governator's "green" Hummer??

    Like I've said before, if half of the greenies had more than half a brain, we'd all be twice as well off. I read a recent white paper that estimated that building 1-2 new nuclear power plants per year for 7-10 years (15 total, starting in 2012, since there is a long approval lead time) would reduce greenhouse gas emissions more than taking 50% of the passenger vehicles off the road completely. Not just converted to hybrids or biodiesel. GONE. But thanks to the ever so idiotic opponents of nuclear power, we have more fossil fuel power plants approved or under construction today than anytime in the past two decades.

    If those blundering fools think a manual vs. automatic transmission makes anything more than a snots difference, they should have a gas mask attached to my exhaust pipe so they can be put out of their misery - and ours.
  • lilengineerboylilengineerboy Member Posts: 4,116
    There you go again, confusing perception with reality.
  • boaz47boaz47 Member Posts: 2,747
    I can't remember ever agreeing with you before. But there is always a first time.

    Daysaler. Well you are correct. I also bemoan any other state having to be controlled by California policies. But that is pretty much the take the ten or so states are taking after the court ruling that the EPA should be controlling greenhouse gases. It may be under review but States like California are pushing hard for the Feds to adopt CARB air standards. Not a good thing if you are a diesel proponant. Now because they were willing to give hybrid owners a tax break for the first few years I was pulling for a tax break on one of those Electric carts like they use for security at football games and race tracks. Now that I am not commuting such a vehicle would bee cool for around town driving. I live in a very small town. With the Hybrid mentality I would feel at ease asking other tax payers for the funds to help me buy it and for our local businesses to allow me to charge the thing on their power and then it might be worth the cost to park my car.

    (Notice at no time did my tongue leave my cheek while typing this message.)
  • cdnpinheadcdnpinhead Member Posts: 5,617
    "I have seen people with big KWs converted to campers."

    Now, you're talking! -- 8-20 forward speeds and multiple reverses, all chosen by hand.
    '08 Acura TSX, '17 Subaru Forester
  • nippononlynippononly Member Posts: 12,555
    "It may be under review but States like California are pushing hard for the Feds to adopt CARB air standards. Not a good thing if you are a diesel proponant"

    Now boaz old chum, just because you aren't on board with the politics, don't get overly down in the mouth. There are quite a number of automakers that expect to have 50-state diesels on the market in California within one little year. Come on, the future is GREEN! :-P

    2014 Mini Cooper (stick shift of course), 2016 Camry hybrid, 2009 Outback Sport 5-spd (keeping the stick alive)

  • boaz47boaz47 Member Posts: 2,747
    Would you like to bet on a california approved diesel in a year? Remember if they try to use the canister particulant filter they are using in Europe they will not meet the standards set by CARB because they have to be serviced at 50k intervals. I will set my watch to one year from today for the 2008 model year and feel pretty sure there will be no new California approved passenger cars offered in our State. Do you really believe differently? When was the last time you read of diesel support by CARB? It was CARB that kept diesels that were legal in other states out of California till 2006 and I didn't see a flock of diesels heading our way in 2007. What do you predict 2008 will bring?
  • lilengineerboylilengineerboy Member Posts: 4,116
    You are allowed to bring in 49 state vehicles if you have owned them for a certain period of time prior to moving to CA. I am seriously considering picking up a couple of TDI sticks before heading back to the Golden State.
  • boaz47boaz47 Member Posts: 2,747
    "You are allowed to bring in 49 state vehicles if you have owned them for a certain period of time prior to moving to CA."

    I once thought about that myself. But I didn't realize you could register one here. All I ever see anymore is diesel Pickups and some big Vans.
  • lilengineerboylilengineerboy Member Posts: 4,116
    I don't think you are allowed to "import" them grey market style, but if you live in Michigan and happen to have a TDi and happen to move to California, they don't make you dump your car. They tried briefly but then got sued over it and had to refund all kinds of money. Also, they started enforcing out of state plate fines...you have like 30 days (I think its less actually) to register your car in CA if you plan to become a resident.
  • boaz47boaz47 Member Posts: 2,747
    Good to know. Not that I will ever be interested in VW again. MB maybe. But we can't even get 1/2 ton Pickups with diesels.

    But I also know you can't bring a out of state vehicle that will not meet California emmisions standards because they won't register it. So if the diesel is from out of state can you still register it here if it was manufacturered after the passenger car diesel restrictions?

    That won't help much with the manual issue. All of the MB diesels I have seen were automatics.
  • kyfdxkyfdx Moderator Posts: 265,497
    I think the diesel VW has to be used and over 7500 miles on the odometer. IIRC

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  • lilengineerboylilengineerboy Member Posts: 4,116
    lWhat You Need to Know Before Buying a Vehicle from Out-of-State

    It doesn't mention cars bought while not a California resident but I believe it is less strict, not more.
  • kyfdxkyfdx Moderator Posts: 265,497
    It doesn't mention anything about used vehicles (defined as over 7500 miles).

    I'm guessing those would all be okay... (emphasis on the guessing part)

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  • kyfdxkyfdx Moderator Posts: 265,497
    It says that any vehicle brought into California has to pass the smog check. Vehicles that do not have the original smog equipment will not pass.

    I take that to mean that any car brought in, has to pass the standard it was originally designed for. This would apply to non-CARB gas vehicles, as well.

    Which makes me think the only requirement for a CA resident would be to buy a used diesel, with over 7500 miles.

    http://www.arb.ca.gov/msprog/NonCAVeh/NonCAVeh.pdf

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  • boaz47boaz47 Member Posts: 2,747
    It seems as if it would be easier for a person moving to this state than for one already living here. The rule says the new or used vehicle would have to pass a smog check for the first time before it was registered. While a gas vehicle with all the proper smog control equipment might qualify a used diesel would never have been certified in the first place and in all likely hood would not pass the particulant test to begin with. So while someone moving here might receive an exemption by the smog referee it isn't as clear if a resident could go out and bring one back that was restricted from being sold here to begin with.
  • kyfdxkyfdx Moderator Posts: 265,497
    From the way I read it, a used vehicle only has to conform to the test for the way it was designed... So, you could bring in a used non-CARB gasoline vehicle and it would only have to pass the standard for that vehicle.

    I think a used diesel vehicle would be the same.

    I think the only restrictions are on new vehicles.

    But, I could be wrong... It's just that I've always heard there was a booming market for used diesel VWs in California.. I don't think that would be the case, if you couldn't get them smogged..

    regards,
    kyfdx

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  • dudleyrdudleyr Member Posts: 3,469
    The VW diesel pages on this forum are full of people bringing in used VW's to California.
  • manualdrivermanualdriver Member Posts: 1
    Manual transmissions offer significantly better fuel economy than automatics, if they are driven properly. Manual transmissions are typically about 96% efficient, while automatics are about 85% (which explains why automatics must be water cooled). The BSFC (brake specific fuel consumption) of gasoline engines show that for in-city driving (under about 8 HP, easy to calculate), the engine speed should not exceed about 35% of redline RPM. I have a 2003 Subaru Forester with a manual transmission. For the last 3 years, I have been consistently getting about 38-39 mpg in the summer (34-35 mpg winter) in combined city-highway driving by keeping the engine speed between 1500 and 2000 RPM, except on the highway. EPA, using shift speeds recommended by Subaru (2200 to 3200 RPM), get 21 mpg city, 28 mpg highway. According to Subaru, their recommended shift speeds are "a compromise of fuel efficiency and performance". Keeping the engine speed below 2000 RPM in the city will not lug the engine because a) The ignition timing is microprocessor controlled, and b) the engine torque required at 2000 RPM is about 30 Newton meters (for 8 HP), about 20% of WOT (wide open throttle).
  • jeffyscottjeffyscott Member Posts: 3,855
    I have been consistently getting about 38-39 mpg in the summer (34-35 mpg winter) in combined city-highway driving by keeping the engine speed between 1500 and 2000 RPM

    That eliminates the main point of owning a manual transmission for most, which is the fun factor. When I drove a manual, shifts were most often probably at 4000-5000 rpm and higher at times. I certainly never shifted at 2000 rpm. Even with an automtic, I am not interested in driving like a 95 year old grandma.
  • eliaselias Member Posts: 2,209
    yes, a big reason for manual is for maximum control and fun. i've found the control/clutch-slipping aspect crucial in winter driving but that is mitigated by traction control systems lately...
    i short-shift 1st->2nd gear on both of my manual cars, one very underpowered, the other very overpowered.
    the underpowered one is a TDI and there's "nobody home" in the upper-rpm range anyway.
    the other is overpowered/crazy-torque and has 1->4 skipshift (GM). shortshifting avoids the forced 1->4 skipshift so i can decide on my own which shifts to skip:
    on both cars i shortshift 1->2, and often rev lots in 2nd gear, then skipping to 4th or 5th if the speed is right.
    mpg does not appear to suffer, compared to what others report. i did get pulled over once for doing that in front of a city cop, accelerating to 49 mph in 40 zone. he just warned me. he said "everyone drives 50 here, don't worry about that. i pulled you over because you accelerated so quickly". i was first in line of cars, and was a bit late to an MD appt. for real!
    i've read some reports that indicate that best mpg is achieved by zooming up to desired speed as quickly as possible and getting into "top" gear. in other words - a jackrabbit start can actually provide best mpg in certain conditions! "who knew?". this can be done in a car with automatic trans too. and obviously it's "debatable" whether it wastes or conserves fuel.
  • andys120andys120 Member Posts: 23,669
    I picked up the brochure for the new 3 series Coupe (hey a fella can dream) and it gives EPA estimates higher by 1 mpg for the A/T version of the 335i over the manual (20/29 v. 19/28).

    I'm not sure I believe it either but my BMW ('00 528iA) is the only car I've owned where I've been able to beat the EPA numbers CONSISTENTLY. They estimate 18/26 and I usually get @ least 23/29, today I got 30.5 on a 70 mile round trip about half of which was on the highway. :)

    2001 BMW 330ci/E46, 2008 BMW 335i conv/E93

  • eliaselias Member Posts: 2,209
    andys120 dude, no way you can get 3 significant figures there. did you really top off the tank at same pump before & after the trip? if so, maybe alrighty then. but 70 miles is not enough distance over which to measure mpg, as far as i understand. in general i do believe you can beat the EPA #s. i can do this regularly with my 5-spd TDI and did it with a bunch of stickshift Z28s too on loooooong highway drives.
    from what i've seen and understand, a savvy manual-trans driver can usually get at least marginally better mpg than an auto-trans driver, all else being equal.
    when BMW offers a manual-trans car with diesel engine in USA, i'll buy one in a jiffy. until then, probably no BMWs for me unless i have yet another mid-life-crisis (mid-geezer-crisis?) and trade my GTO-naro for an M5 or M3.
    cheers & keep the shiny side up, peeps !
  • andys120andys120 Member Posts: 23,669
    All right, fair enough, I should have said I got an indicated 30.5 MPG on my short trip today. ;)

    I routinely get indicated mileages like that on 250-300 mile highway trips though and I've measured it the old-fashioned way and I figure that the actual mpg is about 1 MPG less.

    I'm not claiming an A/T will deliver better gas mileage than a stick just that there isn't that much difference, particularly on the highway.

    2001 BMW 330ci/E46, 2008 BMW 335i conv/E93

  • cdnpinheadcdnpinhead Member Posts: 5,617
    ". . .if they are driven properly. Manual transmissions are typically about 96% efficient, while automatics are about 85% (which explains why automatics must be water cooled). . . ."

    Wow, a real engineer, or at least someone who knows all the right things to say. Welcome! Logic doesn't always (usually?) work around here, but thanks for the input.

    You are, of course, correct. However, that "driven properly" thing is likely to raise one or two hackles. I enjoy manuals for a number of reasons, and agree with what you've said, but I still run the engine up to 4 or 5K from time to time, or (rarely) to red line. The other 99.7% of the time I shift anytime I approach 3K & don't want to demand anything out of the engine if it's turning under 2K.

    The primary point (nut) of this is that the manual offers the option to do whatever you want, when you want, how you want and, as you pointed out, to do it efficiently.

    I especially liked the water-cooling bit.

    Well done!
    '08 Acura TSX, '17 Subaru Forester
  • bpizzutibpizzuti Member Posts: 2,743
    the manual offers the option to do whatever you want, when you want, how you want

    There are lots of other transmissions that let you do that you know. ;) Sequentials, and autoboxes and CVTs with manual-override gates also let you do whatever you want, when and how you want. Sequentials and CVTs are about as efficient as old-style manuals too. Some of the manual gates in the automatics could be better implemented, true (some will shift for you at redline) but the better ones are truly manual control in that mode (Mazda's come to mind).

    True, there are still older-style automatics out there without manual gates (come ON Ford!) but they're getting fewer. And I don't want to buy a car without at least SOME manual-shift capability, whether it's an auto with a gate or a DSG....or a CVT with a gate, really want to try one of those; they're supposed to be very quick-reacting.
  • lilengineerboylilengineerboy Member Posts: 4,116
    There are lots of other transmissions that let you do that you know. Sequentials, and autoboxes and CVTs with manual-override gates also let you do whatever you want, when and how you want. Sequentials and CVTs are about as efficient as old-style manuals too. Some of the manual gates in the automatics could be better implemented, true (some will shift for you at redline) but the better ones are truly manual control in that mode (Mazda's come to mind).

    There's a few different technologies you are mixing together in there. Boy-racer-pretend-I'm-shifting slush boxes will hold a gear until they dont feel like it and then shift, and they will downshift once they feel like it after you tell them. If thats all you need, and most drivers are in that category, bless you.

    If you are talking about a DSG, again, if there is a computer between you and it, you aren't doing anything but moving some electrons.

    If you want a "gated shifter" on a CVT, you don't understand how a CVT works. There is no shifting.

    Personally, I find 3 pedals and a knob connected to linkage which phsyically moves gears together very efficient, and satisfying to boot.
  • dudleyrdudleyr Member Posts: 3,469
    "There are lots of other transmissions that let you do that you know. "

    How does an automatic shift from 5th directly to third?
  • nippononlynippononly Member Posts: 12,555
    the market trend towards automatics, driver-suggested shifters as well as regular slushboxes without a sport mode, gives the regulators and automakers a BIG leg up in their quest to turn all cars into automated transportation pods.

    Buck the trend, people! ;-)

    This is NOT a diesel thread, boaz, but take heart: Honda will have their new 50-state diesel out in the Accord next year, and then probably the CRV soon after (and the Accord, at least, offers a manual), VW will have its 50-state diesel ready to go for the full line of cars, Mercedes BlueTec will be 50-state by then, and even little Subaru (another big participant in the build-manuals mission) will have a diesel the year after that.

    2014 Mini Cooper (stick shift of course), 2016 Camry hybrid, 2009 Outback Sport 5-spd (keeping the stick alive)

  • bpizzutibpizzuti Member Posts: 2,743
    I know exactly how a CVT works, and there IS shifting (constantly as a matter of fact). There's just no gears. ;) But so far no one has come up with a better method for a manual override on a CVT than 6 arbitrary ratios picked out of the full variation range.

    Like I said, the GOOD slushbox/manual-override combos won't do anything unless you tell them to, including hold a gear as long as you want. If you don't know how to pick a good one, that's your fault. ;)

    In your own words, that's all most people need. That's why manual transmissions are disappearing from the mainstream. They're no longer needed. If you want REAL "driver involvement" then get something without power steering or brakes, and make sure it's got a crank starter while you're at it. :D
  • lilengineerboylilengineerboy Member Posts: 4,116
    I know exactly how a CVT works, and there IS shifting (constantly as a matter of fact). There's just no gears. But so far no one has come up with a better method for a manual override on a CVT than 6 arbitrary ratios picked out of the full variation range.

    So if the unit is constantly adjusting ratios for peak performance, why would someone want to interfere with that? If the whole argument is the peak efficiency (either for power or fuel economy) and it can constantly adjust on the fly, why would you want to mess that up?

    I don't know of a single slushbox/manumatic that will downshift on demand, unless it decides its okay. I know of very few that will hold a gear to redline.

    As far as "picking a good one," I did, 3 pedals, 5 forward gears, and I pick when and where it goes into each one. :)
  • cdnpinheadcdnpinhead Member Posts: 5,617
    Exactly! I was going to say the same thing, but it looks like you've beat me to it.

    Also, how does an automatic allow you to hang around in neutral for awhile as a situation develops (may need to continue to coast to a stop, may need to accelerate from any of a number of speeds), then stick it in the gear you want, gently engage the clutch & accelerate, or not, as the case demands?

    Then there's always that "how much does it cost to fix?" thing and, for the new ones, does anyone really know how to work on them? &, assuming you can find anyone who does, will repair parts be available anytime in the next three months? All of which are subsets of the "how likely are they to break?" question. From what I've heard, when one of these new beauties packs up, it's time to remove & replace it, with the "defective unit" sent back to where it came from. This has happened regularly with 5, 6 & 7 speed automatics over the past 5 or so years, too. Oh boy.

    Once the alphabet-soup transmissions have run consistently to & above 150K miles with only fluid changes, I'll feel they will at least have the durability thing going for them that modern automatics most assuredly do not.
    '08 Acura TSX, '17 Subaru Forester
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