Quote Originally Posted by sleeperteg View Post
I have a built B18c 5 years strong 15psi street 28psi race and only use 10 40 regular valvoline plus zddp additive...No problems, i change my oil as soon as it turns black!!! Fresh oil before and after dyno runs always.oh i forgot get genuine Honda S2000 oil filter for better oil pressure.
you do know oil changes before AND after a trim tune isnt buying you anything right. and when it turns black still doesnt mean its bad yet.