2024 Sierra Denali Oil Change. 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%. For us diesel owners, gmc has specific requirements on.
My 2020 6.6 would go to 80 psi. Anyways, i ordered my 2021 denali hd with a duramax.