clutchdust
Millionaire Playboy
I got into a little debate with a local club member about oil weights. In conversation I told him I don't run the recommended 5w-30 in the c5, but 10w-30 instead. He turned his nose up at that and said he only runs what GM recommends. His argument is that their engineers have tested the engines and have to warranty them so them must know what they're doing. Good point, but my argument is they sell the same Corvette in Minot, North Dakota that they sell in Tempe, Arizona. Here in the southwest, where summer temperatures are almost always over 100* and winter temperatures rarely drop below freezing, I just feel a 10w is plenty thin enough. If I lived in Maine or Alaska or Wisconsin, I probably would run a 5w.
Just did an oil change an hour ago and even with the heavier 10w oil, my oil pressure at idle is only about 36psi. I certainly don't see a problem and it just makes me more comfortable. While I respect his reliance on the educated people who put these cars together, I think he is leaving out a relevant factor in his decision.
Thoughts?
Just did an oil change an hour ago and even with the heavier 10w oil, my oil pressure at idle is only about 36psi. I certainly don't see a problem and it just makes me more comfortable. While I respect his reliance on the educated people who put these cars together, I think he is leaving out a relevant factor in his decision.
Thoughts?