Originally Posted by MouSe
I believe him. I once got my Avalanche to do 25 MPG on the highway.
Well that is believable...My Dad got 24 in his silverado on several occassions.
24mpg hwy in a vehicle rated at 19-20mpg hwy is achievable and believable in ideal conditions.
I am saying 50mpg in a vehicle rated at 30mpg hwy is a bit harder to believe and 42mpg against a head wind in a vehicle rated at 30mpg is also hard to believe.
My 96 Grand am with the 3100 V6 was able to get 36mpg on interstate trips in perfect conditions...how could a grand prix that weighs at least 500lbs more get almost 15mpg better? not seeing it.
If he was able to get 50mpg on MANY occassions then okay..he had a freak car..but for him to have got it on one trip...there are too many variables to find it legit..
Anyways, this topic was about his mileage in is Bonneville, and from what it looks like he is getting right about what he should be for his driving.