I read an article online a while ago that suggested straight weight oil offered better corrosion protection to light aircraft engines (which sit idle for long periods) because it was retained on the parts better.
Failure rates were allegedly higher with multigrades.
Since my car sits idle for long periods, that'd be a reason to use it. Its got a mixture of CPC straight 40 and Delvac 15/40 in it at the moment, but summer is just around the corner.
Can't find the article now, unfortunately.
Failure rates were allegedly higher with multigrades.
Since my car sits idle for long periods, that'd be a reason to use it. Its got a mixture of CPC straight 40 and Delvac 15/40 in it at the moment, but summer is just around the corner.
Can't find the article now, unfortunately.