Motor Oil Info

A recent AMSOIL Technical Services investigation on a Cummins OTR ISX-485 engine failure revealed a high amount of chlorine in the engine oil.

The chemical data on the lubricant and surface analysis of the failed engine parts revealed the root cause of the failure was corrosive wear. Acidic components in lubricants directly lead to corrosive wear In this case, an abnormal amount of chlorine was found in the engine oil. Chlorine, when combined with hydrogen and water in the engine, can create hydrochloric acid. This, in turn, can cause severe Total Base Number depletion, which was the case with this Cummins engine. It was determined that a chlorine-containing additive was used when an oil sample from the engine tested at 11,000 ppm of chlorine. The result was an extreme corrosive environment which was responsible for the upper end engine failure within 195,000 original miles. Aftermarket oil additives are NOT recommended for use with AMSOIL Synthetic Motor Oils.