my 77 K20 gets 12 mpg. tired old 350/TH350/NP203 fulltime 4x4. 4.10 gears, and 30" tires. it probably does better than that, but the only time i checked it was with the 7.5' Western blade hanging on the front.
with a little tuning and an adjusted driving style, i'd almost bet you guys with low numbers can easily double your milage.
Last edited by 1FaastC10; 05-27-2005 at 10:36 PM.
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