My 2018 Silverado 3500 with 6.0L gas and 6L90 got a workout this weekend. 2000 miles pulling a square front 24' enclosed trailer....1000 miles of it through the Poconos and Appalachia.
150k miles on the truck. Fresh oil change before the trip with my 4th time running 5 qts HPL No VII 5w30 and 1 qt HPL Engine Cleaner 5w30 with a RP filter.
Truck was between 3-4.5k RPMS most for long periods of time. She is missing maybe 100mL of oil. All is well.
150k miles on the truck. Fresh oil change before the trip with my 4th time running 5 qts HPL No VII 5w30 and 1 qt HPL Engine Cleaner 5w30 with a RP filter.
Truck was between 3-4.5k RPMS most for long periods of time. She is missing maybe 100mL of oil. All is well.