Many people here have had major issues with RP, others like it. You stand warned.
IMHO use 5W-30 Castrol GTX high mileage
What kind of issues other then price... I don't think ive ever heard any things other then opinion on it
98 gtp sedan forest green ,S1X intense cam,Intense pcm,Magnaflow exhaust, ubend delete,TEP trans 3.29's,3.4 smoothflow mps,Dyno'd 281hp and 371ft #'s of trq at the wheels http://www.cardomain.com/ride/3338681