olblue359
jus blowin smoke
What would i have to do to get some mileage out of our fleet of 6.7 trucks. Right now theyget 12 mpg on the hghway and have yet to see it get better with one reaching 100000 miles. Heard alot about the delete kits what would be deleted and which kit is the best. Id like to see at least 15mpg out of our 3 trucks. Input would be really appreciated guys thanks!!!