Dear Focal Point,

Good day to you!

I had just recently overhaul my 15 years car's engine (top overhaul and change piston ring) after travelling for 530,000km in my proton wira. The engine cylinder still in good shape since i have been using tufoil for many years. Thanks to tufoil to surprise my forman on such a little wear on my engine block and bearings after such millage. I change piston ring and valve seal just to reduce the engine oil consumption problem, before it was 500ml every...