i've seen on the Speed channel, some of those domestic muscle cars use the royal purple. it worked for them. supposedly it frees up HP lost in the drivetrain. i thought about using it too, but it's quite expensive. maybe when i win the Lotery.
Personally, I like the Royal purple oil, but I haven't put in my own vehicle. I have tried the Redline. Didn't see much improvement over Mobil 1 for the price difference. So I have been staying with Mobil 1. But I wouldn't put anything Non-synthetic in my car, especially with how hard I drive. :happynow:
^ thats what i use, good street nonsynthetic setup. the important distinction is between synthetic or dino. generally speaking, an engine that has seen dino all its years shouldnt be switched over to synthetic. most high performance modern engine builders recommend synthetic. beyond that it really depends on use. brand is fairly relative but for real racing applications motul is the goto.
its important to note that if you dont use the brand that is suggested by any given user, your engine will undoubtedly blow up
yes oil makes a difference - in an engine setup for it in the first place
is your engine stock or built? forced induction or not?
broad sweeping statements like "royal purple sheers too easily" is really inaccurate. Like everything else out there, Royal Purple, Amsoil, etc. have various blends. There is not 1 oil. The latest trend of the day is high fiving every oil that has tons of zinc....as if it's a cure all. Everything has a positive and negative to it, zinc included. And in some applications, uses, low zinc is necessary, not high zinc. As such, each brand have different formulations for different applications. When considering using these higher end race grade oils., consult your engine builder
I use t6 my car has been eating much less oil(.6 quarts between changes), and no longer has a slight knock since. It use to have castrol when I first bought it but changed it since it was eating 1.5 quarts
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