HARDEX Petrol Cylinder Guard Engine Oil Treatment is formulated to stabilize the engine oil and keeps the engine parts clean, Its high performance additive helps to clean the sludges and prevent deposits build-up on the engine parts. In addition, it stop leak additive helps soften, expands & recover the hard & brittle old seals to stop oil leakage.

It create a thin lubricating film to provide excellent protection in the cylinder wall and piston ring.