Yes, Amsoil warrants that the use of its lubricants will not cause mechanical damage to any mechanically sound equipment when AMSOIL products are used in full compliance with AMSOIL recommendations.
Our extended drain interval recommendations are set at a minimum of two times or more than the engine manufacturers recommendations as determined by oil analysis. Diesel operators who use AMSOIL for extended drains are fully protected.
Studies have proven time and again that extended drain intervals with AMSOIL are a win/win situation truckers win with less downtime and oil expense and they win big with reduced engine wear.