Quote:
Originally Posted by jake318
Ps ive always read you use regular oil to seat rings/pistons/ valves ect for 500 to 1000 miles . Then use the synthetic . It does make sence
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That is correct. In the piston aviation business (where a failed engine can ruin your day), straight mineral oil is used. Now there is a difference here, since we are talking about a liquid cooled engine and aviation engines are generally air cooled.
Nothing generates more controversy and misinformation than engine oils. People get Phd's in this stuff. I've seen folks who "know" arguing with research chemists from the major brands. This stuff becomes a religion.
As an engineer, my advice is to stick to what the manufacturer recommends, unless you've got 20 years experience in engine oils.