Terryallan wrote:
Don't know about the MPG, But on the down hill. Gas has got diesels beat. They already hold back the truck and trailer. All you got to do. Is drop down thru the gear box.
Diesels have to add some sort of brake (trany, Exhaust, engine) to make a diesel do what a gas engine does naturally. With out some sort of add on. A diesel just free wheels down a hill, in ANY gear. I understand many manufacturers are putting them in their truck either as a option, or in some cases standard equipment. It should be required.
I can come down from Blowing Rock, 7 miles of 6 to 7% grade, with sharp curves and hardly touch the brakes.
LOL
Try that with 15k lbs on your tail Terry and get back to us with your results :E Think brake fade here. "hardly" means your service brakes are warm to put it mildly. Most likely hot and in a failing state, err not exactly what the manufacture engineered it for.
Your call, but the gasser back pressure is very limited with a big RV.
BTDT :E