Gas Mileage!!!

[deliriousga]

Originally Posted by gmboxster

I check my gas mileage with every fill up ( sick obsession, lol). I have a 98 boxster. I consistently average 28-29 mpg. I would also suggest to check it off the odometer and dont necessarily trust the computer info.. My driving combines city and highway at almost 50/50 ratio.

That is incredible! According to the computer's calculations over the past several months, we average about 23MPG combined. Ours is about 50/50 traffic to work and around town on the weekends.

[JCL12]

15 seems pretty low, but this is really dependant on driving style. The best ive done with my box - its a tip. . . was 28. 100% pure highway, cool day. The worst I've ever done was 24.3 - but that was still rural roads with a little bit of stop and go. I'd imagine in VA traffic I would get 18-20.

I too had had mileage drop in the winter on my other car - a civic. I've gone from 34-35 mpg in summer/fall driving to 24-25 in the winter. But the 24-25mpg on my civic was heavily in suburbs + lots of AC for defrost.

[Lil bastard]

Driving Style (incl. how much you idle, especially in Open Loop), Temperature, Tires, Tire pressures and their consistency, Humidity, Wind, Topography (live in the Plains or in hilly country), Driving mix, Road type and condition, Fuel quality and chemistry (fuel recipes change seasonally), electrical load (incl. battery condition), all have such an influence on Range (MPG) that comparisons of less than 4-5 MPG between 2 different cars are not very useful. I don't think you've described poor mileage at all. It may be your expectation which is off.