I am asking for opinions, agreements, disagreements and facts from anyone who knows something about this. And, if correct, I think this quote adds to the debate of synthetic vs. dino oil.
This was found in the oiling systems section of "How to build high performance chyrsler engines" by frank adkins. The author is an ase certified mechanic with cert in advanced level engine performance.
Quote: "The film strength of many mineral-based oils becomes severely weakened at temperatures slightly over 220 degrees F and even the best begin to oxidize between 250 and 300 degrees F."
Dan