Royal Purple
#2
im sure many people would suggest to go with it. oil change intervals are alot longer than conventional oil. only bad thing about synthetic is that once you purple you never go back. once you put synthetic in the motor there is no conventional oil going back in after that. but i've heard royal purp is the best out there over castrol syntec hence why its so damn expensive. lol
#5
I dunno either just looked it up and found this....
http://www.castrol.com/castrol/gener...tentId=7017050
http://www.castrol.com/castrol/gener...tentId=7017050
#7
I switched to AMSOIL synthetic merely because I got tired of crawling under the truck every 3K miles. I still screw on a new filter every 6K or so. If you do the math, even without calculating the cost of your own labor, you still save a ton of money.
RP has a good reputation. Many people swear by it.
RP has a good reputation. Many people swear by it.
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#9
Ok I think Im going to try Royal Purple. I also heard they did a test with two same engines. One with RP and one with something else and supposedly got 8 extra HP. I might change all fluids to RP actually