<----AmsOil
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<----AmsOil
I'm now using Schaeffer's oil. in my truck and the SS.
I used RP once in the GTO. Mostly Mobil 1 5-30. Had AmSoil Severe Gear in the old diff but dealer switched it out for the GM stuff when the diff seal was replaced. New diff has Torco. Will use AmSoil when the old diff is replaced with TrueTrac. May switch to AmSoil 5-30 in the engine soon.