my buddy has an 05 duramax cclb we recently put a 4 inch lift on it with 285 series tires and everything and he had the computer recalibrated at the dealer and his fuel mileage is reading on average of 11 mpg. I was wondering if someone has a similar set up and could tell me what they were getting his just kinda seems low to me. ooo and the oil presure at idle is like next to nothing is that common? thanks for everyones time
05 duramax
- Thread starter SixSpeedKiller
- Start date
Hand calculated 2 tanks so far with my 305's on and recalibrated the speedo with EFI live. I'm getting 19.5 mpg mixed city and highway, not driving for mileage with quite a few full throttle blasts to 70 - 80.
The most impressive thing in my mind is I was getting 18.5 hand calculated with 245's with the same driving habits.
The most impressive thing in my mind is I was getting 18.5 hand calculated with 245's with the same driving habits.
yeah, ive noticed alot of trucks with low oil pressure at idle.
make suer you use good oil filters
make suer you use good oil filters
