Thread: Fuel Mileage
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Old November 17th, 2014, 12:32 AM
Clarke Clarke is offline
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Join Date: Jan 2013
Location: Eureka Springs, AR
Truck: 1962 1500 Wideside 4 speed (305D / SM-420)
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Default Re: Fuel Mileage

I have the stock 305D/4 sp trans/carb/ignition with 238-85.16 tires. When I was running 4.56 rear end, I was consistently getting 9.0 mpg with some in-town driving, but mostly highway (not exceeding 65 mph). Then after I swapped the 4.56 for a 3.54, I consistently get 11.3 mpg driving the same route (to/from work), except I run 70-75 mph.

Towing my 3,000 lbs camper (with or without my canoe), I'm getting 7.0 mpg running 55-65 mph in the flat lands.
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