[Boost Creep]

Originally Posted by AZ_1LE

Valvoline 5w-40 worked great for me https://www.amazon.com/Valvoline-5W-.../dp/B000GAP428

Not Dexos2 rated.

I had good luck in my LS2 and LS3 using Mobil 1 5W40 turbo diesel, kept the sewing machine noise to a minimum, but it is not Dexos rated either.