Best Fuel Mileage: 6.2NA, 6.2T, 6.5NA or 6.5T
My original plans were to use the 6.2L Diesel ("599" block) that is in my 1993 GMC 3500 van to repower my 1986 Grand Wagoneer.
Back in December, I bought a nice 1982 J10 to replace my POS 1999 Grand Cherokee.
My J10 is much nicer than my Wagoneer.
I am just sitting here thinking here about fuel economy.
Turbos force more air and fuel into the engine, so I am guessing that a 6.2 that had a Turbo added or a 6.5T would drink more fuel than an naturally aspirated engine.
So, if I were to change my plans to repowered my J10 to improve its fuel economy to be a Daily Driver, no serious towing, with 3:31 ratios front and back, do I want to think a Turbo?
Should I look for a 6.5?
Bryan Smith
2004 KIA Optima: wife 's DD
1999 Jeep Grand Cherokee Limited: my DD
1993 GMC 3500 Vandura, 6.2L Diesel
1982 J10: Replacement engine now sitting in the truck! No Cab Brow!
1981 J20: Commercial flat bed. Long term Project: RUST! No Cab Brow!