Originally Posted By: The Critic
Originally Posted By: NHSilverado
Generally speaking aftermarket premium fluids are much better than OE fill. Car mfg's use some pretty cheap quality [censored] even today. That may not apply as much to this particular fluid( ie; 75W-90 GM synthetic )BUT when you look at the retail for the GM fluid at approx $25 vs say $9 for Royal Purple MaxGear it is a no brainer to me.
And how are you certain that the aftermarket fluids are better?
The OEM fluids go through a very rigorous testing program that
NO aftermarket fluid goes through. This involves dyno testing, fleet testing and teardowns, testing that I doubt any aftermarket company has the resources to perform (to the same extent). All of the testing done by OEMs is conducted under very severe driving conditions that is unlikely to be seen by most customers.
Yup, only the mfg's spend any money on R&D and only their fluids are any good. Thanks for clearing that up for all of us. Amsoil, RP, Redline, etc... it's all junk. We all need to swap back to the overpriced OE fluids that are SOOO much better.
BTW - I have this really cool bridge for sale in NY are you interested.