sgfrye wrote:
18 mpg is not towing, towing is 8 to 9 mpg..
my 2000 f150 5.4 got 15 to 16mpg not towing, 6 mpg towing.
VCRT wrote:
Yes, I realize you're giving two different scenarios, towing and not, but 18 mpg. is the realm of a half ton with a 5ish liter engine isn't it? With an added 1300# of curb weight a bigger engine and a 4.10 rear, I don't see anyone can get 18mpg. That's why I asked how you do it.
I've been towing since 2006 with GM's ubiquitous 5.3L coupled to a 3.42 axle ratio in an '06 Silvy and '05 Avalanche, each running the older wide ratio 4-speed transmission, and now with a '12 Silvy running the newer narrow ratio 6-speed. ALL easily achieve 22 miles to the US gallon on the highway, not towing, during the summer, winter slightly less. Move to a 3/4 ton and it may tow more capably but it sure won't get anywhere near this mileage the rest of the time, when not towing. If you want an all 'round daily use truck that can periodically tow a trailer weighing up to ~ 6000 lbs
and expect decent mileage when not towing stick to a 1/2 ton. ;)