Originally Posted by
oreocreaming
do you have excessive black smoke when you hit the gas petal? if not, then turning it down wont help. if you make it too lean that can do damage, and having less fuel then you need will cause your motor to stress and you will get worse mileage.
Wrong, You cannot lean a Diesel out ...
Backing the pump off just makes less power, of course it'll use less fuel, Unless you need to stuff your foot into it deeper to get where you are going.
Fuel mileage is mostly up to the FOOT and the brain that says how hard to push that foot!
-Enjoy
fh
: )_~