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Mazda3 Real World MPG

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  • nsbio1nsbio1 Posts: 48
    Do you drive it downhill or something? I have an 08 manual 3i and my normal mileage is 27-29mpg, with all highway never going above 34. Although I am not sure my car would touch 38 even if I did drive it downhill and had it towed back up...
  • dudleyrdudleyr Posts: 3,435
    Mazda confirmed a diesel in the US within 2 years
  • 59scott59scott Posts: 2
    Good details! My car is a 2010 3s GT 5 door, 6m. I bought the car in 09, only started keeping a mpg spreadsheet in March of 10. Over 22,700 miles my average mpg is 31.62. High was 34.4, low 27.5 in Massachusetts February cold. My daily commute is 36 miles each way, mostly highway but I drive around town evenings and weekends. I drive pretty conservatively, 65-70 on the highway but occasionally 80. Avoid accelerating up hills. Last winter I put Hankook Icebear W300s on the car, 205/60 16 inch. Not the ultimate snow tires but good enough where I live and way better than the OEMs. They softened the ride and handling a bit, but not too bad. I love this car.
  • whobodymwhobodym Posts: 151
    http://www.facebook.com/media/set/?set=a.1466090412711.2065402.1247040125&l=5e46- 45f293

    I am enough of a geek, and the car has a trip computer and manual trans, so quite precise measurements of MPG at various speeds and in each gear are possible. This is all measured on the same 15 mile loop of light-traffic interstate highway returning to the same point of origin to cancel out elevation and wind effects. The cruise control is set at each speed for each entire loop so this is much more precise than real-world driving tank-fill records. I've posted last year's results before here, but this time I've added a new point at 4th gear/50mph to replace last year's point which didn't make sense. Also rechecked 5th gear/60 & 70 mph points, and tried 3rd gear at 60 mph. Yes, bad mileage at 4750 rpm.
  • roadburnerroadburner Posts: 6,380
    I'm still driving my 2007 Mazdaspeed3 with quite a bit of restraint and since April it has averaged 27.6 mpg. The lowest tank averaged 24.5 mpg and the highest averaged 30.7 mpg. Not too shabby for a motor making @287 bhp(my car is equipped with the Mazdaspeed CAI).

    2009 328i / 2004 X3 2.5/ 1995 318ti Club Sport/ 1975 2002A/ 2007 Mazdaspeed 3/ 1999 Wrangler/ 1996 Speed Triple Challenge Cup Replica

  • roadburnerroadburner Posts: 6,380
    In July it averaged 26.8 mpg; the worst tank was 23.3 mpg and the best was 29.2 mpg.

    2009 328i / 2004 X3 2.5/ 1995 318ti Club Sport/ 1975 2002A/ 2007 Mazdaspeed 3/ 1999 Wrangler/ 1996 Speed Triple Challenge Cup Replica

  • shiposhipo Posts: 9,152
    Wow! That's pretty darn good for a MazdaSpeed3. :)
  • roadburnerroadburner Posts: 6,380
    Thanks; I don't hypermile, but I do stick to the speed limit except on interstates- when I might exceed the limit by 10 mph. I also decline most all invitations to participate in the Stop Light Grand Prix... ;) Finally, less than 10% of my driving involves stop-and-go traffic.

    2009 328i / 2004 X3 2.5/ 1995 318ti Club Sport/ 1975 2002A/ 2007 Mazdaspeed 3/ 1999 Wrangler/ 1996 Speed Triple Challenge Cup Replica

  • lmcdrmlmcdrm Posts: 5
    edited September 2011
    2008.5 Mazda 3 Sport Hatch w/5 speed auto "manumatic" transmission.

    I've driven Kuma since new (May, 2008) and have seen:

    High Mileage - just about 30 MPG - long highway cruise, limited AC use, cruise control set always just about the speed limit.

    Daily driving - mostly "in-town" driving, lots of lights, stop & start and a slightly heavy foot - about 26 MPG average. Sometimes higher in winter (no AC use) and lower in summer (heavy AC use).

    LOW Mileage - about 17 to 19 MPG - heavy in town, heavy AC, heavy foot.

    Not quite the numbers I'd hoped, but given the way I drive, not bad....
  • ppaasseeiippaasseeii Posts: 1
    edited September 2011
    2007 Mazda3 S (2.3L) Hatch 5-speed MT

    Fuel economy:

    Aggressive driving: city + highway = about 20 mpg

    Boston, MA to Providence, RI / pure highway / no AC / windows a bit open / 2 people in the car / cruise set most of the time at about 65mph: 35.8 mpg

    Providence, RI to Boston, MA / pure highway / no AC / windows a bit open / 2 people in the car / cruise set most of the time at about 75mph: 33.8 mpg

    New K&N air filter and RedLine SI-1 in the tank. I can't tell you if it helped because i just bought the car but i'm sure it did, these numbers look good. Mileage is from from the trip computer, I think they should be realistic or conservative, according to the other comments.
  • whobodymwhobodym Posts: 151
    Yesterday I drove my '10 3s GT 6MT from Butte MT to Othello WA crossing Lost Trail Pass and Lolo Pass, achieving 563 miles on one tank fill-up of 15.75 US Gallons. MPG = 35.8. I've corrected for odometer error observed against mileposts. Factors you may decide are "cheating" -- zero ethanol most likely, it was 85.5 octane high altitude Montana gas. I break the rules and top off the tank, just can't help myself. Plus all 2-lane relatively low speed roads (although I went fast for these roads). The range computer was saying about 10 miles left when I reached the Othello gas station.
  • Since you've thrown out the challenge, here goes:

    2005 Mazda 3i 2.0 L w/5-speed manual

    Average mpg based on all fill ups over 6.5 years:

    38.54 mpg = 87,7l7.3 miles / 2,270.756 gallons

    Best range on one tank
    (note: my car's tank is only rated to hold 14.5 gallons):

    624.2 miles

    Calculated tank average was 45.04 mpg (624.2 miles / 13.859 gallons)

    :)
  • whobodymwhobodym Posts: 151
    Yes I'm sure you've got me beat fair and square. If I recall my car magazine reading correctly, the 2.0L engine lacks the two balance shafts that are in 2.3L and 2.5L Mazda engines to calm vibration, and I'm pretty sure this added internal friction is a major part of the loss of fuel economy for the larger engine (with its larger fuel tank). I'm also confused why the gear ratios are so short in my 6MT car -- 2400 rpm at 60 mph in 6th. The engine is plenty torquey enough to pull 2000 revs/mile which I think would give another 1 or 2 mpg at highway speeds. I'd be happily willing to use the lower 5 gears for all my "sporty" driving, and have 6th be a lazy gear that required downshifting for hill-climbing and acceleration. Why does Mazda think I bought a 6MT if I don't like shifting gears?
    It will be interesting to see how the new 2012 "sky" engine does. per PR it is a lot more economical. I'm curious to see whether it becomes available and/or totally replaces the 2.5L even in the fancy models -- which I would like.
  • smoothsailinsmoothsailin Posts: 73
    edited October 2011
    I did a lot of research before making the decision to purchase my 3i instead of a 3s, and the considerable difference in real-world fuel economy between the 2.0 and 2.3 L engines is what made up my mind.

    You're right that my engine lacks the vibration-dampening balance shafts present in the 2.3 L and your car's 2.5 L engine and I agree that additional frictional losses due to the addition of these shafts may be at least partially behind the fuel economy penalty that's paid with the larger engines. I'm also curious to see how the 2012 sky engine will perform, and I'd also like to see Mazda offer a diesel engine in the 3 series down the road.

    For now at least I've been very satisfied with my 3i and after owning mine for 6 1/2 year I can honestly say it has been reliable and trouble-free as any car I've owned (which have generally been Toyotas over the last 30 years.)

    I also congratulate you on your mpg results with the 2.5 L 3s, for they're superior to what I've seen posted by most owners.

    Like you I also wish Mazda would offer a taller top gear in a manual transmisson for the 3 series. My 3i only turns around 100 rpm more in 5th gear at 60 mph vs. the 2.4k rpm you posted for your 6 speed. Contrastingly, my parents have a 2.4 L Toyota Camry with a 5-speed automatic which despite making less hp than your 2.5 L the engine only turns around 1,800 rpm at 60 mph, which allows this larger and heavier car to manage hwy mpg in the mid-thirties along with noticeably quieter operation. Although the 2.0 L in my car is relatively "gutless" as far as torque production under 2k rpm, I still feel it could comfortably pull taller gearing that would allow the engine to turn only 2k rpm at 60 mph. With such taller gearing I wouldn't be surprised if I might be able to manage highway mpg in the high 40 mpg range at conservative cruising speeds of 60 mph or less.
  • shiposhipo Posts: 9,152
    edited October 2011
    A couple of comments:

    I too have suspected a big difference in fuel economy between the 2.0 and the 2.3/2.5 liter "S-Model" engines is the balance shafts. Fortunately 4-Cylinder engines of two liters and less don't typically need balance shafts to operate (relatively) smoothly. I too am glad I opted for the 2.0 liter mill. :)

    There was of late a rather heated discussion over in the "Future of the Manual Transmission" thread where I suggested a taller gear for my Mazda3 would be nice. I see I'm not alone in that sentiment.

    One of the "Good News" items regarding the new SkyActiv-G engine is that it is also a 2.0 liter model, sans balance shafts.

    Mrs. Shipo is going to be in the car market within the next four to six months, and a Mazda3 SkyActiv-G 6-Speed manual is on our short list. I'll keep y'all posted if one of those beasties ends up in our garage.

    Mazda has already announced that the new SkyActiv-D diesel engine will make it to the U.S. inside of 2013 and later Mazda3s. I for one cannot wait as my 2009 Mazda3 will get itself traded in almost as soon as the SkyActiv-D 6-Speed manual models become available.
  • shiposhipo Posts: 9,152
    "There was of late a rather heated discussion over in the "Future of the Manual Transmission" thread where I suggested a taller gear for my Mazda3 would be nice. I see I'm not alone in that sentiment."

    I happened upon a post at the beginning of the discussion I referred to earlier if anyone is interested. :)

    http://townhall-talk.edmunds.com/direct/view/.ef6716a/7694#MSG7694
  • whobodymwhobodym Posts: 151
    even more closely comparable than the Camry 5AT is the Ford Fusion 2.5L 6AT, one of which I rented in Wash DC and drove to upstate NY, last month. This car has exactly the same engine my '10 MZ3s has, and is geared similarly high or even higher, 1600 or 1700 rev/mile if I recall, and in a somewhat larger heaving chassis. Performance was fine, and fuel economy was as good or better than I get in my 3. I suspect that Mazda feels that MT drivers still like to be lazy and get fairly good pickup in the highest gear, even without a downshift. I say, use 5th gear for that if you insist. Automatics kickdown automatically out of such high gears at the drop of a hat, of course.

    I too am very curious to see and hear about the "sky" engine version. My own preferences, along with manuals, are to get all the gizmos. My car has leather, sunroof, Bose, steering headlights, memory seat positions, etc. and I like all that stuff very much (well not the steering lights, the experience has been completely underwhelming). Will the fanciest '12 MZ3s come with the sky engine? I hope so.
  • shiposhipo Posts: 9,152
    Per the Press Release from Mazda earlier this week, it looks like one can (or at least will be able to) opt for a fairly well tarted up Mazda3 i GT with the SkyActiv-G motor; it remains to be seen if you can opt for all of the goodies one can order with the Mazda3 s GT (you know, things like dual-zone climate control and keyless entry/push-button start).

    http://www.insideline.com/mazda/mazda3/2012/2012-mazda-3-with-skyactiv-starts-at- -19245.html

    Full press release:

    Mazda Announces Pricing of 2012 Mazda3 With SKYACTIV® TECHNOLOGY

    - Popular Compact Offers Up to 40 MPG (Highway) and Lower Starting MSRP -

    IRVINE, Calif., Oct. 4, 2011 /PRNewswire/ -- Mazda North American Operations (MNAO) today announced pricing of its refreshed 2012 Mazda3 compact vehicle, including the first application of the brand's all-new fuel-efficient and performance-oriented SKYACTIV TECHNOLOGY. Available as both a sedan and hatchback, Mazda3 commands more than 40 percent of Mazda's year-to-date sales, and is by far the best-selling vehicle in the brand's line-up.

    "The Mazda3 is the core of the Mazda line-up and continues to be the standard by which all other compact cars are measured," said Jim O'Sullivan, president and CEO, MNAO. "Because of the importance of this critical vehicle to Mazda sales success, we chose to debut our revolutionary SKYACTIV TECHNOLOGY in Mazda3, as well as bring the i SV model to market at a lower starting MSRP than the previous year."

    The Mazda3 i SV sedan starts at an impressive $15,200(1) MSRP, which is a price drop from the previous model year. Styling is updated with a revised front fascia and Mazda-distinctive five-point grille opening. Inside, new cloth seats and a bold, black cabin accentuates intuitive controls and panels. Paired with the dependable 148-horsepower MZR 2.0-liter engine, the Mazda3 i SV sedan is the first stop in Mazda's performance-geared, fuel-efficient line of sporty compacts. Moving up to the Mazda3 i Sport, the 2012 model sees the addition of remote keyless entry as standard equipment. The Mazda3 i Sport sedan starts at $16,845 MSRP and is optionally available with the five-speed Sport automatic transmission. Mazda3 i SV and Sport trims are not available on five-door models.

    Mazda3 i Touring models swap the MZR engine for the all-new SKYACTIV-G 2.0-liter gasoline engine, and is EPA-rated to achieve 40 mpg on the highway. MSRP for the sedan model starts at $18,450. SKYACTIV TECHNOLOGY is a suite of fun-to-drive and fuel-saving technologies, debuting with a SKYACTIV-G 2.0-liter engine that produces 155 horsepower and 148 lb-ft of torque. The all-new engine offers five percent more horsepower than the standard MZR 2.0-liter engine as well as 10 percent more peak torque, 15 percent more low- to mid-range torque and up to 21 percent better fuel economy. And, unlike competitors in the segment, the SKYACTIV-G 2.0-liter engine is available on a host of different trim levels to benefit the most customers possible.

    In addition, the hatchback model will be available for the first time in the U.S. with a 2.0-liter engine, priced from $18,950 for the Mazda3 i Touring hatchback with SKYACTIV-G, and boasts an EPA-rated 39 mpg on the highway, which is best-in-class for compact five-doors. All i Touring and Grand Touring models are available with the all-new SKYACTIV-MT six-speed manual transmission or the all-new SKYACTIV-Drive six-speed automatic transmission (an additional $850 MSRP for either sedan or hatchback model).

    Building off the Mazda3 i Touring model is the all-new i Grand Touring trim level, also available in both sedan and hatchback body styles. Mazda3 i Grand Touring models provide class-competitive fuel efficiency as well as high-value standard features such as a power moonroof, power driver's seat, leather-trimmed seats, heated front seats, a Bose® Centerpoint® 10-speaker Surround Sound System with AudioPilot® and a full-color navigation system with a multi-information display (MID). Mazda3 i Grand Touring sedan models start at $22,300 MSRP with five-door models starting at $22,800.

    Other standard equipment for i Touring and Grand Touring models are an all-new 16-inch aluminum alloy wheel design, a leather-wrapped shift knob and steering wheel as well as a trip computer. A Moonroof & Bose® Audio Package is available for i Touring models ($1,400) while an updated Technology Package featuring rain-sensing windshield wipers, self-leveling bi-xenon headlights, automatic headlights, Adaptive Front-lighting System (AFS), Sirius satellite radio and a perimeter alarm. A segment-exclusive Blind Spot Monitoring (BSM) System is available for i Grand Touring models ($1,400).

    Available in Touring and Grand Touring trims, Mazda3 s models are equipped with an MZR 2.5-liter engine that boasts 167 horsepower and 168 lb-ft of torque. Starting at $21,300 MSRP for the sedan and $21,800 for the hatchback, new standard features for s models are all-new 17-inch aluminum alloy wheels, the Mazda Advanced Keyless Entry & Start System with push-button start, a moonroof, a dual zone automatic climate control system and a Bose® Centerpoint® 10-speaker Surround Sound System with AudioPilot®. Navigation is now standard on all s Grand Touring models.

    Equipped with an MZR 2.3-liter Direct Injection Spark Ignition (DISI) engine, the top-of-the-line MAZDASPEED3 has an output of 263 horsepower and 280 lb-ft of torque. The vehicle starts at $24,000 MSRP and is equipped with 18-inch aluminum alloy wheels and a Bose® Centerpoint® 10-speaker Surround Sound System with AudioPilot®. Other standard MAZDASPEED-only treatments include: sport-tuned exhaust, larger front brakes, sport independent front and rear suspension, a limited slip differential with the Mazda Advanced Torque Management System, larger front and rear stabilizer bars, distinctive red and black interior styling with similar-fashioned leather-and-cloth Sport seats, scuff plates, black leather-wrapped shift knob as well as a unique front fascia, fenders and hood.

    A MAZDASPEED3 Technology Package is the only packaging option with an MSRP of $2,135, and adds features such as navigation, Blind Spot Monitoring (BSM) System, Adaptive Front-lighting System (AFS), self-leveling bi-xenon headlights, automatic headlights, Sirius satellite radio, a perimeter alarm, rain-sensing windshield wipers and the Mazda Advanced Keyless Entry & Start System with push-button start.

    Mazda North American Operations is headquartered in Irvine, Calif. and oversees the sales, marketing, parts and customer service support of Mazda vehicles in the United States, Canada and Mexico through nearly 900 dealers. Operations in Canada are managed by Mazda Canada, Inc., located in Ontario; and in Mexico by Mazda Motor de Mexico in Mexico City.

    (1) Starting price is manufacturer's suggested retail price (MSRP) for lowest trim level. MSRP does not include $795 destination charge (Alaska $840), title, tax
  • What the hell it is!

    My2010 mazda3 sport(Manual) can just drive 220miles with one tank. All suburb no highway

    Can anyone tells me what's going on?
  • All of my cars can drive 220 miles with one tank.

    You need to provide additional detail for a meaningful reply!
  • whobodymwhobodym Posts: 151
    if you literally mean driving only 220 miles from completely full to running out of gas, and you don't have a fuel leak or a big dent in the side of the gas tank, you are burning about 16 gallons to do the 220 miles, which means you're getting fewer than 14 miles/gal. That is not possible in a well-running MZ3 unless you are talking constant gridlock traffic, extremely illegal average speeds, and so forth. What driving conditions are you talking about?
  • "What the hell it is!

    My2010 mazda3 sport(Manual) can just drive 220miles with one tank. All suburb no highway

    Can anyone tells me what's going on?"


    Based on these numbers you are getting 15 mpg, because it's a 14.5 gallon tank. My guess is that you're providing incorrect numbers.

    Fill your tank up all the way and set the trip meter. Then next time you fill up calculate your miles to gallon by dividing the number of miles on the trip meter by the number of gallons to refill the tank. This would be the first thing to do to provide an accurate number.

    You should be getting 25 mpg city if you drive like a normal person and do not have any major or obvious problems with the engine. Unless you left the parking brake on that kind of poor gas mileage is very unlikely.
  • whobodymwhobodym Posts: 151
    to have 14.5 gal tank this has to be a 2.0L 3i Sport, not a 2.5L 3s Sport which has 15.9 gal tank.

    with a late-model, OBDII-emission-controlled car it is hard to imagine how burning nearly twice as much fuel as normal wouldn't be detected by the ECM computer and turn on the "check engine" light.

    are you driving 5000 rpm in 2nd gear lots of the time, or the like??

    I'm the guy who did the trip-computer-fuel-economy experiment with Excel spreadsheet data plot a few months back posted here somewhere. I have a 2.5L 6MT not a 2.0L 5MT, but I can tell you highly confidently -- since I did 15 mile constant-speed freeway loops in a location with near zero traffic to get my data -- that the one sure way to turn 34 mpg into 19 mpg is to cruise at 60mph in 3rd gear instead of 6th gear. All the extra fuel is burned up in engine friction at 4700 rpm instead of 2400 rpm. This holds true for all cars not just Mazda3s.
  • 3s has 2.5L engine and it is rated only 20 mpg for city for its 5 speed manual.

    I have a 2012 3s AT with 2.5L engine. I usually fill up when low gas indicator comes up with about 12-12.5 gollon. Assuming this guy is getting 220 per 12/12.5, he is getting about 18 mpg. This is not to far away from the rated 20. I am getting about 250 miles per 12/12.5 gollon, roughly 22 mpg right at the mpg rating for city but I am actually doing 50/50 city/highway. I bet I'd get much lower mpg than 22 if I go city only. I am not complaining about my mpg performance since I go up-and-down hills a lot daily.

    If CEL is lited, you may have miss fire going on in the engine. If you are all of a sudden getting much lower mpg than before, you'll need to bring in your car for a check.
  • languedoctorlanguedoctor Posts: 8
    edited November 2011
    I still don't have a good sense of what kind of mileage I'll get from my 2012 3s HB (m/t). I do a lot of suburban driving (40-60mph) in medium traffic w/ occasional lights. It seems like the best approach is actually to coast as much as possible off throttle (shifting to neutral strikes me as going overboard, and potentially unsafe). 50-60mph on flat terrain in 6th gear is *well* over 30mpg per the trip computer. The trick seems to be to get up to speed briskly (though not insanely), rather than drag things out. I'd like to try it out and see if I can coax 30mpg+ from this engine, but there's one thing that always stops me.

    Inevitably (this is FL) there's someone dawdling, or accelerating at a glacial pace. And I know that with just a touch of the go-pedal, I can make that headache disappear in the rearview. And the next thing I know, I'm daydreaming that I'm in a suburban rally . . . until I pull into the Exxon station with 22.1 showing on the avg MPG meter. Again. :shades:
  • shiposhipo Posts: 9,152
    edited November 2011
    Your experience with the 2.5 is precisely why many of us feel Mazda should drop that motor entirely (or at least make the "s" models available with the new SkyActiv-G engine). Granted the new motor isn't quite as powerful as the 2.5, but the trade-off is that the new engine should return at least eight more miles per gallon for any given driving environment.

    FWIW, in mixed driving with no attempt to eek out the last possible MPG, my 2.0 liter 2009 Mazda3 i 5-Speed consistently returns a tad over 30 mpg; I'm betting a SkyActiv 6-Speed (manual) model would return mileage in the high thirties for the same type of driving. Unfortunately Mazda won't let me order a nicely optioned model with the new engine and new manual transmission.
  • True, but . . . I was smirking in my post (above) because I know I bear a lot of responsibility for the lower mileage...

    ...but not all. I figured that I needed to get used to the clutch, but after a month, I swear it isn't all me. The throttle response on the 3s is a little bit top-heavy. The car practically invites you to pretend to be a rally driver.

    And it really isn't necessary, because the engine is plenty torque-y. No need for gimmicks. $.03
  • roadburnerroadburner Posts: 6,380
    From 9/1/11-12/31/11 the car averaged 28.2 mpg. Lowest tank was 25.4 mpg. highest was 30.1 mpg. No complaints here... :D

    2009 328i / 2004 X3 2.5/ 1995 318ti Club Sport/ 1975 2002A/ 2007 Mazdaspeed 3/ 1999 Wrangler/ 1996 Speed Triple Challenge Cup Replica

  • p928sp928s Posts: 4
    I've been pleased with my car's fuel economy. Since new (it now has 108k miles), it's been getting ~30 mpg mixed driving and 32-33 highway. Normal driving - not intentionally taking it easy. I push the trip meter with each fillup and divide miles driven by gallons of gas purchased.
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