I just picked up the royal purple deal at AAP with K&N filter, I couldn't get my Mobil 1 10w40 HM NOT ON SALE !!. Is the RP Comparable to Mobil 1 10w40 HM or better. Im a little worried about the VQ beating on the RP. Hoperfully the RP 10w40 will stack up against the VQ35, Can someone give me some peace of mind.