i couldn't agree more to these two comments. I tried Redline synthetic which costs about the same as the royal purple. I found that it was really nothing to boast about (having tracked with redline, HPR5 and SIN5) really all of them performed adequately. i used to use HPR5 and found it was enough but then moved up to SIN5 as i could get 30% off all SCA stores as my uncle is an employee
u mean... a TURBO sportivo ;)