rustystud
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This is the major reason I went with the 383 cid Hi-Torque engine. I get better mileage and way more power then the old 6.2 could ever give me. Now towing my trailer is a pleasure not a hassle. I would love to get a Duramax with a Allison some day but since I'm retired now too I cannot afford one. Maybe some day when we win the Lotto which my wife is always playing ! I was originally going to install a 454 engine, but my buddy owns a 1 ton dually crewcab with the 454 and he gets 7 mpg on the freeway on a good day ! My 383 gets me 15 to 17 mpg on the freeway and about 10 to 12 miles per gallon city driving. On totally flat roads with the outside temperature at about 75F I can almost get 20 mpg. I know the higher temperature is a weird thing. You would think at a colder temperature I would get better mileage, but no it has to be around 70F to 80F to get the best mileage.Well, that 6.2 can barely move the truck along on flat ground. Adding the Ranger would only decrease power. Any overpass scrubs off speed and these small mountains here in N GA take me down to as low as 30 MPH.
Now, truth be told this truck has 4.10 gear and I ran 70 MPH the whole way except on any uphill grade. Even with the 400 (my last trip up) the grades still got me. On thing is for certain, if the truck is going to get driven on a regular basis here in GA as it does in FL, there will need to be a big jump in power. I love my 6.2s but they can't make the cut here. Turbo 6.5? Fuel injected 454? Not sure.