>I believe the oil cooler for air cooled engine is for cooling the oil. The main >purpose is to prevent oxidation and vaporization of the oil. As far as cooling >the engine, it really relies on the cooling air blown by the cooling fan. > Yes, I would agree with this statement. You want to cool the oil for its own sake, to avoid thermal breakdown for example. Hence even if a synthetic oil does not absorb as much heat as conventional oils, this will not significantly affect the engine's working temperature. On the other hand, synthetic oil still lubricates satisfactorily at high temperatures. Aside from thermal breakdown, what are the other dangers of hot engines? Sami -- *--------------------------------------------------------------------------* | Sami Dakhlia Voice: (314) 935-5670 | | Department of Economics, Campus Box 1208 Fax: (314) 935-4156 | | Washington University | | One Brookings Drive | | St. Louis, Missouri 63130-4899 dakhlia@wuecona.wustl.edu| *--------------------------------------------------------------------------*
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