Originally Posted By: Gordo2001
Hi Bill,
I was just sent the link, no more info. But spending a little more time looking at the link sent by Barlowc I see it says: "The product offers performance consistent with many synthetics in the market". Well, thanks Castrol...you prostituted the word synthetic so it has no meaning anymore.
I don't know who to believe, except for the UOA's. I recently switched from PP to Motorcraft semi-syn based on price and UOA's published on this site.
UOAs are very good for telling the degree of contamination(fuel, coolant,ETC) in the oil, or the condition of the oil, but can't tell you much more. I would be interested what showed up in a UOA that caused you to change from PP to MC?