how can I get a better mileage. on 2007 Chevrolet Silverado 2500 HD

I hear other happy diesel truck owners of getting 16 to 19 miles a gallon on their trucks I only get 13.7 not towing and if I go easy on the pedal. any sugestions?

by in Gresham, OR on February 24, 2011
3 answers 2 comments
ANSWER by on February 24, 2011
Check that the air filter is not restricted. TIre pressures are important, even tire make/manufacturer can affect fuel mileage. Driving habits and loads affect fuel mpg. If all else fails to get you better mileage I wonder if the fuel injectors or fuel pump have a problem. Any Black Smoke form the exhaust signifying excessively rich running conditions?
COMMENT by on February 24, 2011
Thank you!
ANSWER by on February 24, 2011
I second Patrick's answer. I'd also add that diesel fuel quality is also could be an issue. Try to change your regular gas station and see if it will positively changes the results. Zee
COMMENT by on February 24, 2011
Thank you!
ANSWER by on March 28, 2011
I started adding Lucas oil treament to my 04 and I stared getting 2 to 3 miles more per gal. Gerald