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Hybrids & Diesels - Deals or Duds?
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Comments
I use B5 in my CRD. That is all I can get locally. I have read of people using B20 and B100 in the CRD with no ill effect.
It is unfortunate that General Motors soiled the reputation of the diesel in the United States. I never had a lick of trouble with my 1981 Isuzu I-Mark diesel save for a single hydrolock situation.
I would really like to see biodiesel take off. The government should subsidize this fuel and strongly encourage it's use. We have plenty of land that is laying fallow. Another benefit is keeping animal fat/tallow out of the landfills. This is another source of biodiesel.
I drive a 2005 CRD and the engine is way beyond what my old Isuzu was. It is smoother and far more powerful. In comparison to my previous vehicle, a 1993 Dodge Dakota 4X2 with a 5.2 L V-8, this is so much better. I have more torque than the V-8 could ever produce and pulling power from 50 - 70 in top gear is so much better too. I have literally increased my fuel economy by 50+% too. No more gasoline for me.
A hybrid diesel is interesting. Chrysler (before it became Daimler-Chrysler) had a hybrid. It was the size of a Dodge Intrepid, had a three cylinder DI diesel, and got close to 55 mpg on the road.
I just came back from a San Jose CA to Las Vegas, NV, one way 530 miles. Filled up on the Las Vegas Strip and got 42 mpg with 5.5 hrs of travel time.:) Trunk maxed to the gills and AC full blast the whole time and three passengers.
While I was in Vegas, for a week, I did app 184 miles of stop and go (Vegas is worse than an LA rush hour) and got 29 mpg. 5 passengers all the time AC full blast (which really didnt do much good)
What happens to the batteries once they become unusable or if the vehicle gets totalled? NiMH batteries are not exactly the most environmentally friendly batteries around, although better than NiCd. What about the cost of disposing of them properly?
A second issue is that some fire departments are hesitant to touch a Prius that has been badly damaged for fear of getting shocked. I know that Toyota has built in a feature to prevent this, but it could still be a problem. What is so frightening is that this could be the difference between a badly injured person surviving or dying.
140 is oddly low, though. That's usually for track tires.
-juice
There is no meaningful standard. As stated above, it is up to the manufacturer. It is like asking a car manufacturer to rate how fast their cars are on a scale of 1-10. Would you expect Ferrari and Kia to have the same definition of fast.
On a side note, years ago (I have no idea of it still happens), tire manufacturers were accused of issuing abnormally low tire wear ratings, because the autocross types would assume the lowest rating = the stickiest tires.
As I have said, If you take a look at Kumho's vs Michelin's (since you do not mention which model tires) you will find that Michelin's usually come with thicker rubber. So for example in Michelin's for the Corvette, the Michelins have 10/32 in vs the oem Goodyear's that come 8/32 in.vs Kumho's with 9/32 in. I would expect the Michelins to last far longer, given these situations
They get recycled.
It's that simple.
NiMH is recycleable and not dangerous to the environment (don't believe the false info being spread by some). There's collection program already setup for this too, where you get $200 for the pack afterward.
As for the "hesitant" claim, what fire department has actually said that?
JOHN
When looking at UTQG ratings it is important to realize that the Department of Transportation does not conduct the tests. The grades are assigned by the tire manufacturers based on their test results or those conducted by an independent testing company they have hired. The NHTSA has the right to inspect the tire manufacturer's data and can fine them if inconsistencies are found. While most new tire lines have their grades established when they are introduced, they are allowed a 6-month grace period to allow the tire manufacturer to test actual production tires. Once a grade is assigned it must be branded on the tire's upper sidewall and printed on its label.
Unfortunately, the rating that is of the most interest to consumers is the one that appears to be the least consistent. While the Treadwear Grade was originally intended to be assigned purely scientifically, it has also become a marketing tool used by manufacturers to help position and promote their tires.
UTQG Treadwear Grades are based on actual road use in which the test tire is run in a vehicle convoy along with standardized Course Monitoring Tires. The vehicle repeatedly runs a prescribed 400-mile test loop in West Texas for a total of 7,200 miles. The vehicle can have its alignment set, air pressure checked and tires rotated every 800 miles. The test tire's and the Monitoring Tire's wear are measured during and at the conclusion of the test. The tire manufacturers then assign a Treadwear Grade based on the observed wear rates. The Course Monitoring Tire is assigned a grade and the test tire receives a grade indicating its relative treadwear. A grade of 100 would indicate that the tire tread would last as long as the test tire, 200 would indicate the tread would last twice as long, 300 would indicate three times as long, etc.
The problem with UTQG Treadwear Grades is that they are open to some interpretation on the part of the tire manufacturer because they are assigned after the tire has only experienced a little treadwear as it runs the 7,200 miles. This means that the tire manufacturers need to extrapolate their raw wear data when they are assigning Treadwear Grades, and that their grades can to some extent reflect how conservative or optimistic their marketing department is. Typically, comparing the Treadwear Grades of tire lines within a single brand is somewhat helpful, while attempting to compare the grades between different brands is not as helpful.
So lets take a real life situation The 360 utoq tire has 60k miles with 6/32 in tread remaining, starting with 10/32 in. Wear patterns would indicate app consumption of 15,000 per 1/32in. So projected remaining wear if I take it to 2/32 in is 120k. So are you saying that I can get similar mileage with a 140 rated tire assuming a start with 10/32 in ???
They are absolutely not comparable between brands..
So.. saying that a tire with a 140 rating will wear faster than one with a 360 rating, is only accurate if they are both Michelins, Bridgestone, etc...
Does this seem silly and illogical? Of course it does..
Is it true? Absolutely
regards,
kyfdx
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For your second absolutely, I have directly compared two different brands GY Eagle F1 SC's 220 utoq vs Toyo Proxes T1S's, 280 utoq. same sizes. The 280 utoqs are wearing app 5k miles per 1/32 in longer than the 220 utoqs. Imagine that!?
Will it be true in EVERY case? I doubt it.
As to which fire departments are "hesitant" to go near a Prius, I could not tell you. I read this in the September 2005 Car & Driver magazine. The names of the fire departments were not stated.
I think it's nonsense.
-juice
Along with the Accord hybrid, I don't see the point. Most of the people who would feel good about owning a hybrid (in the green sense) aren't into fast driving. They want to save more gas than they could in a regular 4-cyl Camry - not use as much gas as one while going twice as fast. I know commuters who buy Corollas/Civics instead of Camries/Accords just for the mileage... a slow hybrid Camry/Accord would be perfect for them. And they're a big market, unlike hybrid V-6 buyers.
And don't forget all the people who would want a Prius - a midsized comfortable car - but don't want its looks or flashiness. A hybrid 4-cyl Camry would get all of them, too.
Finally, I think most people who are into fast driving but want a hybrid (I'm thinking techies, not environmentalists or unethusiast commuters), would like something other than a Camry for that sort of thing.
That is grossly outdated information.
Prius comes with a 460 now. Wear from the 460 is much less, because the rubber is much harder. (I upgraded the tires on my Prius to 760, so they'll outlast the average tire... and then some.)
JOHN
Some people are intentionally trying to create this rumor.
It is absolutely not true.
Toyota *ALREADY* announced that the Camry-Hybrid coming out next year will be use a 4-cylinder engine. See... http://www.toyota.com/html/hybridsynergyview/2005/summer/hybridcamry.html
JOHN
Yes, we know that. The problem is automakers haven't cared enough to actually use the technology. They just keep doing the minimum.
The SULEV emission rating is possible for a diesel vehicle, but not available for consumers to purchase.
JOHN
In that case, my post applies only to the Accord hybrid =].
I generally prefer a UTOG of about 360 to 380. I like a sticky tire and I am willing to give up durability for control and safety. The Bridgestone Alenza has a UTOG of 700. It does not ride like you are on marbles. Apparently the compounding of the rubber changes as it wears. It gets softer as the tread wears away. So far, I have not slid in wet conditions, as I have only 2100 miles on the tires. It will be interesting to see what happens when I have 21,000 miles (which is 1/3 of the rated tire life). If I have wet control problems, then I will go back to Pirelli.
No wonder Diesel is always more expensive than regular gasoline.
As for biodiesel, we have plenty of farm land that is laying fallow. That could be used to grow soy, canola, etc. to make biodiesel. The refining process for biodiesel is simpler than making diesel from petroleum and there is no sulfur to worry about. If the government should subsidize something, then it should be this. Biodiesel can be used to heat homes and businesses too.
-juice
I think they'd sell reasonably well in urban areas
Looks like fuel prices are going to the moon. Hope we have a mild winter.
In its first year in Canada, the Smart car is already outselling the two other "it" niche minicars, the Volkswagen Beetle, re-introduced in 1998, and BMW Canada's Mini Cooper, which was resurrected in 2002.
The most positive sign, Caza said, was that demand was "pan-Canadian, rather than in the three main markets (of Montreal, Toronto and Vancouver). We thought it would be an urban demand, but it's selling in places like Halifax, Regina, Saskatoon and Victoria."
Guillaume Noiseux, 18, is also thinking pan-Canadian - he's considering trekking cross-country in the Smart car with a buddy, although his father called that "more in the planning stages than in the sphere of reality."
Noiseux pere said the first 10 months have gone "surprisingly well. It's simple, dependable and economical. My kid used it to go to college all year, and it cost him $12 to $15 in gas every two weeks. It's actually less expensive than a bus pass."
http://www.zapworld.com/about/news/watch_smartvminibeetle.asp
We have no one to blame for high fuel prices but ourselves.
2001 BMW 330ci/E46, 2008 BMW 335i conv/E93
Around me, diesel cost more then even premium gas. That's a tough sell, you gotta pay about $0.25-30 cents more per gallon in the first place.
On top of that, low-sulfur diesel it supposed to cost a bit more, I read 7 cents more somewhere. If so it would be $0.32-37 more per gallon here. Yikes.
-juice
To give an even comparison: the Hyundai Accent with the 1.5L gas motor and 5-speed gets around 35 mpg highway. Gas at $2.51 a gallon will cost $71.71 per 1000 miles. The same Hyundai Accent with a 1.5L turbodiesel gets around 50 mpg highway. To spend that same $71.71 over the same 1000 miles, diesel would have to be $3.59 a gallon.
As for price, diesel is running at the same price as regular at some stations while at others it is up to twenty cents less per gallon. Go figure.
Biodiesel is a great idea. I have tried it a couple of times as a B5 blend in my CRD. The engine is quieter, smoother and feels peppier. As for fuel economy, there was no degradation. If the big oil companies are threatened by biodiesel, then maybe they should invest some of their ill gotten profits in it. They will have to eventually.
If you to really reduce petroleum imports, impose an increasingly stiff tax based on vehicle size and engine displacement and type. They do this in Europe.
I would expect that to be the case. However I am using BP ECD-1 ULSD and paying $2.999 per gallon at ARCO stations. The truck stops in my area are $3.079 and up. Unleaded regular at the same ARCO is $2.699 Premium $2.879. You have to take into consideration San Diego has always gotten gouged by the gas companies, same as the Bay area.