45 mph cruising, which gear?

45 mph cruising, which gear?

09-29-2005, 05:39 PM

#1 (permalink)

TLanier

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Join Date: Jul 2005 Location: Denver, CO Posts: 61

45 mph cruising, which gear?

in a situation where you must cruise along on a flat road at 45mph (speed limit of course) , would it be better to be in 4th @1800 rpm, or use 5th @ 1400 rpm? Consider the flat road, with no lugging. Which gear would give the best mpg?

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1998 2500 Quad 12v NV4500 3:54, 165k miles, TST #11, TST AFC, AFC full forward, Timing 15.5', BHAF, Skyjacker 2.5" coils, KDP fixed, Bilstein Shocks, 35" Mickeys, Thuren Fabrication trackbar crossover steering and control arms w/ heim and rubicon joints, nice and tight.

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