Originally Posted By: gfh77665
Nothing special about Ultra. RP is an extended drain oil, while Ultra does not claim that. Ultra is good, but nothing special about it at all.
Don't you have that backward?
RP only good for racing?
Nothing special about Ultra. RP is an extended drain oil, while Ultra does not claim that. Ultra is good, but nothing special about it at all.
Don't you have that backward?
RP only good for racing?