Thanks for this article. It makes a lot of sense and has some very good points. It certainly helps someone understand what is going on inside the engine. Although they did mention this, I would have wished they expound a bit with regard to Syn oils holding up better under severe conditions. Although the oil will thin under high heat conditions, the molecules will remain bonded together maintaining a film between bearing surfaces to a much greater degree.
Perfect example would be me getting out of Pittsburgh after the Vintage Gran Prix a few weeks ago. 4 lanes and no place to go. Several miles of stop and go traffic had the fan running on the oil cooler. Man, does that 1400 put out some heat under those circumstances! Never had any trouble, but I am glad there is synthetic oil in the crankcase. You just don't know what you may encounter out there.
John Henry
