I just picked up a 2003 Chevy 2500HD 4x4 for use on a farm. It has 297k miles on the LQ4 and purrs like a kitten. I do however have low oil pressure at idle (sort of common on these engines) and will be doing a flush and changing out the oil pump to a high flow Melling. My initial thought is to do an engine flush to ensure any oil galleries that may be restricted are clean, then do an oil fill, change the pump and run it for a few days and do another change to ensure it is as clean as possible.
I typically run Rotella T6 in my vehicles but there is a dizzying array of oils on the market and I am unsure which may be the better oil to run in this very high mileage truck. Is there an advantage to the High Mileage oils here? The truck does not leak oil or any other fluids, doesn't knock and still has gobs of power. (It was an old AT&T service truck and got excellent service) This truck will not see much highway use and will idle a lot and be run hard when not idling. I plan on using it to pull stumps, trees and pull a trailer. It will be used hard until it breaks then it gets a new engine.
BITOG is such an awesome resource, and I figured if anyone had the best advice, it would be here.
I typically run Rotella T6 in my vehicles but there is a dizzying array of oils on the market and I am unsure which may be the better oil to run in this very high mileage truck. Is there an advantage to the High Mileage oils here? The truck does not leak oil or any other fluids, doesn't knock and still has gobs of power. (It was an old AT&T service truck and got excellent service) This truck will not see much highway use and will idle a lot and be run hard when not idling. I plan on using it to pull stumps, trees and pull a trailer. It will be used hard until it breaks then it gets a new engine.
BITOG is such an awesome resource, and I figured if anyone had the best advice, it would be here.