20W40 Engine Oil is a multigrade car engine oil, prepared from high quality additives as well as base stocks. This is useful for all passenger cars, which run on petrol. The oil is provided with the benefits of outstanding engine cleanliness, high oxidation stability, improved fuel economy, improved wear protection and drawn-out engine life. 20W40 Engine Oil also finds compatibility with the catalytic converter. It is highly needed for the protection of the engine as well as gears.