Quote:
Originally Posted by christianchevell
just so you all know are cars engines the ls3 is designed to run 30 weight, heavier oil may starve the top end.......... and the stock melling is for 30 weight, and I run about 30 give or take hot and that's good. I used to run small block chevys with high volumes and it would go down to 20 and worry me but never gave a problem on any of the engines. Of course cold the oil pressure with a stock oil pump and my cam is way up there until it gets hot.
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light oils are rare here, they used the factory oil dexos
however ii use 20w50 for top ups