i'm using tufoil on my b16a...no problem so far...it makes ur engine rev more smooth...FC not much different...use it when u change ur oil...i'm using 3.7-4 liter of castrol magnatec with 1/2 bottle of tufoil...
damn we have a fast and furious female in malaysia which end up her life near sungai long..kajang...damn....i hope those evo will b recoved by there also ...here is the link...