2024 Sierra Denali Oil Change. For us diesel owners, gmc has specific requirements on. I've had my 2024 sierra 2500hd for a fairly short time and only have 470 miles on it, yet the oil life indicator already reads at 77%.

I also answer some questions from the last walk under video. Engine and engine oil technology has improved to the point where the rule of changing your engine oil every 3,000 miles no longer applies.