Mpg Poll / Speed Poll
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I've gotten 28+ on a full tank doing 90% highway driving, when I was bone stock, green engine with about 500 miles on it. Weird mix of highway though, included mountains, so charging uphill at 90, then coasting or engine braking down.
In the more usual city mix of driving, I'm sitting at low 20's. Still not bad...if you just don't beat on it you stay out of the super-rich part of the powerband that dumps gas.
Winter driving definately makes a huge impact, I don't let the car sit and warm up, but the ScanGauge tells me I'm dumping about 1 Gallon / hour at idle when the car is cold. When it is hot, this runs about .2 - .3 GPH. Most of this is for emissions to light off the cats faster, that's one other reason our intakes have the variable tumble valve in there. This isn't terrible though, I was looking at GTOs before I bought this....and their idle averages 3.0 GPH when cold and barely under 1 GPH when warm. Add to this the fact that Mazda takes my entire 10-15 minute drive to warm up....and I like to drive my beater to work on cold mornings.
Sure, it leaks a little fuel when it's cold ... but it sure is warmer inside!
In the more usual city mix of driving, I'm sitting at low 20's. Still not bad...if you just don't beat on it you stay out of the super-rich part of the powerband that dumps gas.
Winter driving definately makes a huge impact, I don't let the car sit and warm up, but the ScanGauge tells me I'm dumping about 1 Gallon / hour at idle when the car is cold. When it is hot, this runs about .2 - .3 GPH. Most of this is for emissions to light off the cats faster, that's one other reason our intakes have the variable tumble valve in there. This isn't terrible though, I was looking at GTOs before I bought this....and their idle averages 3.0 GPH when cold and barely under 1 GPH when warm. Add to this the fact that Mazda takes my entire 10-15 minute drive to warm up....and I like to drive my beater to work on cold mornings.
Sure, it leaks a little fuel when it's cold ... but it sure is warmer inside!
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2,058 Posts
i have gotten 11 mpg since i bought the car, i fill it with 92 (best i can get) and i dont race or run the car hard the dealer has been unable to fix the car in 2 trys now :swearin: first they blamed it on a bad bov now they are trying to tell me all speed6 get poor fuel mileage. most of my driveing is stop and go at low speeds and its cold here in Mn.
the car is stock
the car is stock
Maybe slightly off topic, but how goddam hard would it be to include an effing MPG and trip computer in the design of this car! My ten year old VW has one for God's sake... The car doesn't even have to use a physical key! It just knows I'm there and welcomes me in. It uses mother lovin satelites in space to tell me the quickest way to get the closest IHOP, and has one of the more advanced engines known to consumer autos, but it can't tell me the basic math of how many miles I am getting from each gallon of gas it uses....
Anyhoo, I voted for under 18mpg w/ mostly highway driving. Frustrating, yes... but that boost (and whooooosh/pssst) does things to yer mind.......
Anyhoo, I voted for under 18mpg w/ mostly highway driving. Frustrating, yes... but that boost (and whooooosh/pssst) does things to yer mind.......
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826 Posts
I'm with all of you. I had 150 miles on a half tank. That was with my normal driving habits, of shifting between 3k and 4.2k.
Assuming that there are 17 galloons in the car
and that the 150 miles are repeated for the other half
I'm barely scraping under 18mpg city. thats ridonkulus.
Assuming that there are 17 galloons in the car
and that the 150 miles are repeated for the other half
I'm barely scraping under 18mpg city. thats ridonkulus.
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315 Posts
city driving, no matter how I seem to drive I get right around 15mpg.
On the highway it goes way up to about 25ish....
On the highway it goes way up to about 25ish....
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261 Posts
No matter how I drive it I get right around 22 mpg. All highway, 22 mpg. Mixed driving, 22 mpg. Baby it, 22 mpg. Givin' 'er hell, 22 mpg.
I'm pretty much ok with that though. 22 is right about where I figured it would be, wouldn't mind if it were slightly higher on the highway though.
Like clockwork my gas light will come on at 300 miles on the tank. hasn't failed, plus or minus 5 miles for every tank for my 2500 miles on the car.
I'm pretty much ok with that though. 22 is right about where I figured it would be, wouldn't mind if it were slightly higher on the highway though.
Like clockwork my gas light will come on at 300 miles on the tank. hasn't failed, plus or minus 5 miles for every tank for my 2500 miles on the car.
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485 Posts
I do about 90% city driving and I usually get right around 17-19 mpg. I can't wait for summer when I take it down to the Outer Banks. In my old SHO i got 32mpg cruisng at 80mph. At this point i'm only assuming that i could get better mileage cruising at the same speed with the speed6. We shall see in July.
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488 Posts
Steady 80 will get 25mpg +/-2, depending on the wind. I have done about 2500 miles of that type of driving with cruise on. You might break 30 at lower speeds.
I get right between 21-22 mpg on my usual commute: 1/4 mile out of town, 20 miles highway with one stop (from which I accelerate "briskly") and another 2 miles in town with a few stops. When I get a chance to do a highway run, I get 22-25, and it does seem better at 85 mph than it is at 60 mph. Since so much of the fuel this car uses is going to cylinder cooling instead of moving the car, starting and stopping probably makes a much bigger difference than some other engines. For the guy getting 11 mpg, it's undoubtedly a sensor/software problem-the car is reading the edge of detonation and dumping fuel to compensate. Of course, getting that fixed is going to be a bitch. Have you had the reflash?
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