This one can treats engine sizes 1.6L - 1.9L RESTORE Engine Restorer is an engine repair, not just an oil additive, that works on the worn-out areas of the cylinder walls, restoring cylinder compression and improving it to nearly new condition before the next oil change Engine Restorer contains micro-particles of a proprietary formula called CSL (60% copper, 40% lead plus silver trace) in suspension in an SAE-30 high performance motor oil. The remetallizing compound CSL was originally developed at NASA to lube Space Shuttle gyroscopes. It is these tiny particles that fill and seal micro-leaks in the engine's cylinder walls. The blue smoke, which occurs when oil enters the combustion chamber and is burned with the fuel/air mixture, is then dispelled for up to 15,000 miles and often for much longer .. RESTORE Engine Restorer can be used in all four-stroke, petrol, diesel and LPG engines .. The result is increased engine compression and more engine power. Independent lab tests prove that RESTORE really works to increase cylinder compression