Quote:
Originally Posted by VSGTS14
royal purple has been confirmed to be...not the best in a subaru motor. i don't know of ANY subaru owners running it and if they did, they immediately switched. i would never touch anything royal purple.
they may be good. but not for a boxer motor.
rotella t6 has excellent results. this is my UOA on my sti with rotella.
|
The Subaru WRX owner's that have run it, and had it analyzed, were running the Energy Conserving 5W-30 or 10W-30 in a turbo. RP even recommends on their web site to use their HPS oil in a modified car.
Go post your STI analysis at IWSTI.com
. Compare apples to apples please. Oh wait, you did post this over there.
-Dennis