^^^^Change it like regular oil too. I mean seriously! With what gas costs for a tank full, what is $25-$35 every 3,000 mi for an average Mobil 1 oil change and piece of mind?

Oh yeah gotta keep it lubed :wink:

I'm feelin' good about the royal purple. I have read tons of threads and independant test showing from like 9 to 15 HP gains.