This car never ceases to amaze me.

[Louk]

We are about 2/3 through a road trip and have about 1100 miles done. In several bumper bumper traffic jams with a majority being 70-80 highway driving this car is averaging over 30 MPG!
I have spent some long hours in the car the last two days and it is just such a comfortable place to be all day long.

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[Cobra Jet]

Have you hit the mpg "reset" at all during the trip?

 

[Louk]

Have you hit the mpg "reset" at all during the trip?

The average for the last two days is sitting at 30.4, I had a couple of full throttle runs that brought it down slightly lol

 

[Bikeman315]

Lou, have checked your mileage with a calculator? Honestly I think your cars reporting numbers are a little optimistic.

I did a short run of 60 miles the other day. Kept my speed to 65 and no wot and averaged 30.1. I’m not saying it’s not possible, just unlikely.

 

[Louk]

Lou, have checked your mileage with a calculator? Honestly I think your cars reporting numbers are a little optimistic.

I did a short run of 60 miles the other day. Kept my speed to 65 and no wot and averaged 30.1. I’m not saying it’s not possible, just unlikely.

Yesterday when I filled up I had went little over 420 miles and had high 40’s left on the distance to E.
earlier in the day I did the math and it came out to little over 30. It was something like 14ish gallons and around the same 420/430 mark for miles.

 

[Zrussian13]

I've seen 26mpg's max (calculated) but that's going 85-90mph most the way. I could see getting a few more out of it if I was going closer to 70 the whole time. The gauge always reads high though and not consistent, sometimes a few tenths and sometimes a few miles off.

 

[vanquishvzla]

My 12 mpg avg on E85 says you are not pushing that car hard enough lol

 

[LSchicago]

My 12 mpg avg on E85 says you are not pushing that car hard enough lol

My 5-6 MPG on E85 says you aren't either!

 

[vanquishvzla]

My 5-6 MPG on E85 says you aren't either!

I need F/I

 

[Dfeeds]

How? Best I can do is 25. Should I tighten the nut behind the steering wheel

I'm actually also curious. Same reasoning, the best I can do is 25/26. I've hit 30 and even 40 but that was right after a reset cruising downhill in sixth gear. That number plummeted the moment I gave it an ounce of throttle.

 

[Louk]

I'm actually also curious. Same reasoning, the best I can do is 25/26. I've hit 30 and even 40 but that was right after a reset cruising downhill in sixth gear. That number plummeted the moment I gave it an ounce of throttle.

Perhaps the dark green paint makes it cut through the air easier? That or McQueen has blessed my car with magic lololol

 

[Gregs24]

I get 30mpg plus easily on longer runs (UK gallons) and if the on board figures were that far out I would have run out of fuel! If you get 400 miles out of a tank it has to be doing 30mpg or thereabouts.

 

[asc709]

The car can definitely do it if you keep your speed constant. I’m actually surprised that it doesn’t do better. I’m averaging 19.5 in the couple thousand miles since I got the car (it’s a PP car with 3.73 gears).

My C7 could easily get 35-40 mpg on road trips. I think the best I got was 38 or so on a steady 75mph - 400 mile trip. Of course it was way lighter and had a 2.41 rear with an A8 tranny.

 

[Bikeman315]

My C7 could easily get 35-40 mpg on road trips. I think the best I got was 38 or so on a steady 75mph - 400 mile trip. Of course it was way lighter and had a 2.41 rear with an A8 tranny.

You might want to mention cylinder deactivation as well. Honestly apples and oranges.

 

[13GetThere]

But we pay a gas guzzler tax on the GT's?
My wife's Edge gets about the same miles per gallon as my GT, and we didn't pay the guzzler tax on her Edge, WTF?

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