yes i have a new body style 2007 silverado 4.8 it gets horriable gas milage dose anyone have any suggestions to help get more milage like cold air intakes wich one works best or programmers any suggestions would be most helpful thanks

 

Our 06 4.8 didnt get great MPG soon after driving it off the lot but at some point in the last 25,000 miles that are on it we get 16-17 city and 18-20 highway.

Its a crew cab 2x4 and if I would have trusted the dealer he said the 5.3L would get better MPG than the 4.8. I have since bought a 01 with and 5.3 and I think I average 18 city 22 highway, its a 4x4 ext. cab, older than our 06 and I put my foot in it all the time. It came with a flowmaster muffler on it probably a FM 40 it is load but probably adds a few percentages to better MPG.

A cold air kit could help or try a K&N filter replacement. I used one on my Cherokee and noticed a small increase in throttle performance, not sure how much it helped in MPG.


5.8L yea it was a typo cdusthockey

 

they didnt even make a 5.8l in 01, it was either a 5.3,6.0. but i really dont know why anyone would get a 4.8 to begin with. id rather get a 96 vortec 5.7, and i know from experience that those can get 19mpg on the freeway easy