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...
i was driving up to genting following the ulu yam's road last saturday, because there is a very dark and hazzy condition, i bang into a hole before another 5 km to the genting cable car station. and two of my tire...