Motor Oil Info

Aftermarket engine oil supplements are “treatments” advertised to enhance an oil’s properties. Manufacturers claim these treatments reduce friction, noise and wear; maintain higher lubricity and break down sludge and varnish, protecting the engine components. Many products advertise materials like Teflon, molybdenum or graphite; however, most fail to mention that they contain chlorine, which can be highly corrosive when mixed with water.

Chlorinated paraffins were once used as extreme pressure (EP) additives in lubricants, but the practice has been discontinued in most passenger vehicle lubricants due to the corrosive side effects. These chlorinated compounds are due to their low cost and ability to provide extreme pressure properties, but they readily react with water and combustion by-products to form acidic materials that promote corrosion of engine components and bearings.

Aftermarket oil additives are NOT recommended for use with AMSOIL Synthetic Motor Oils.