[Christ]

Originally Posted by Frank Lee

I couldn't open that link with the zip. For the '85 I6 4-sp stick I see 19 city/24 hwy. Fueleconomy.gov doesn't show a 5-speed nor any model F150 rating 28.

The old EPA numbers ('80's) were bogus, as they were something nobody but Wayne Gjerdes and Basjoos could get. I have never heard of anyone getting anywhere near that.

All the same, I don't see a gas F150 busting through 23 without, like Dave says, going to war. I don't think 50 mph cruise will do it, I don't think gears will do it. I would be delighted if someone would prove me wrong though.

P.S. I have recorded a single 22 mpg tank (recently- no cooling fan, some other tweaks) and 2 or 3 21 mpg tanks with my 302 F150 w/3.31:1 axles... over the course of 15 years with that truck. Those were the nice long 50 mph cruises with kickin' tailwinds. Since figures like that are so few and far between and the norm is 18 or less, I consider them anomalies. Fill errors or something could have contributed too.

Won't be me trying to prove you wrong... mine's not road legal, it's just a 'Ute.