01-04.5 LB7 Duramax Powertrain
2004 Chevy LB7 25HD - 148k
PPEI 5 switch tune and 4" air intake and 4" exhaust.
A couple months ago my truck started leaking oil when the back end was parked on a slight incline, thought the oil was thin and coming out of breather so we changed that out.
still leaked.
then we replaced the...