Castrol MHP 153 and 154 are high performance lubricants specifically developed for use in modern highly rated marine and power generation four-stroke engines operating on distillate fuels.;Advantages Compared to an API CD oil, MHP 153 and 154 can provide the following advantages;Long lasting protection in the toughest operating conditions.;Enhanced performance at high temperatures.;Potential to extend the time between overhauls so reducing costs.;Formulated for excellent engine cleaniness.;Cleaner piston ring zone.;Enhanced detergency, excellent thermal and oxidative stability.;Offers the potential to simplify and reduce overall lubricant usage.;High load carrying capabilities and high gear performance that enables them to be used as a common oil for both engine and transmission systems.;Reduced maintenance and wear.