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A sage member of the forum and former GM engineer on the C5 project said the best performance was found to be 30 Hot. I've been running 30 Hot and have excellent feel, performance, and even tire wear.
A sage member of the forum and former GM engineer on the C5 project said the best performance was found to be 30 Hot. I've been running 30 Hot and have excellent feel, performance, and even tire wear.