I seems like the members on this board are slowly graduating from the old PAO vs group III arguements that have been going on for about 5 years.
By reading through the posts on many of the threads, members are more inclined to be concerned with a lubricant product's performance and UOA results than simply following along blindly to the PAO drummer, or synthetic drummer for that matter.
It was predicted correctly very early on that group IIIs were going to be a threat to the expensive PAOs strong hold on the high performance lubricant market.
I personally can hardly wait for Mobil to package a group III product with a "synthetic" label pasted on it just like Amsoil does now with their 7500 series engine oils.
This is what I've been thinking:
You can have your oil changed at a quick lube outlet. That used oil is then taken to a re-cycle plant and can be cleaned up back to an API SL approved engine oil.
So the problem with used engine oil is not with the base oil, but with the contaminants and additive depletion.
I have yet to be convinced from anything I have read on this web site or others, that synthetics of any descritpion provide better engine lubrication.
Synthetics MAY provide a longer service life than conventional lubricants and fluids if the additive package holds up and contaminants remain in suspension or are filtered out.
Synthetics MAY provide superior extreme heat protection than conventionals, but piston engine aircraft owners will tell you the opposite.
Synthetic based lubricants MAY provide a fuel savings, but long haul truckers remain to be convinced.
Some claim that synthetic lubricants have a higher film strength than conventional lubricants, but there is no proof of that statment either.
Synthetic lubricants MAY privide easier starting and have better flow numbers in extreme cold, but if your operation is not subject to those conditions, then synthetics offer no advantage to conventional multi-grade lubricants in that aspect.
You know, the reason the American Locomotive CO, ALCO went out of buisness was partly because they could not believe that Diesel power was the answer to the railroad's needs. Oh, they likely built the best steam engines, but were 10 years behind the competition with their Diesel program.
If my financial existance was dependent on convincing people the superiority of PAOs, I'd be worried.