2017 Silverado 5.3 towing 7.5k on a routine basis now. Coolant temps hold at 207, then up to 215-220 until the fans pull it back to 207. I notice when I stop, the oil psi drops to
My question is keep running 0w-20 Dexos (Currently on M1EP) and stay with a higher PAO/Ester oil, or step up a grade to 0w-30/5W-30 for the higher HTHS? I don't give 2 squats about MPG. This is purely for wear protection.
Edit: Almost out of powertrain warranty so viscosity in regards to warranty are moot.
My question is keep running 0w-20 Dexos (Currently on M1EP) and stay with a higher PAO/Ester oil, or step up a grade to 0w-30/5W-30 for the higher HTHS? I don't give 2 squats about MPG. This is purely for wear protection.
Edit: Almost out of powertrain warranty so viscosity in regards to warranty are moot.
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