ProOne's Heavy Duty Diesel Motor Oils is a blend of high performance base oil and advanced XPL+ Lubrication Technology that dramatically lowers friction and protects against wear. This combination along with it's robust anti-oxidant pack provides the best lubrication in low-emission, high mileage, and modern heavy-duty diesel engines that maintains high TBN's which extends oil life and service intervals.For Diesel Engines High Mileage Engines Commercial/ Industrial Engines Marine Engines Withstands 200,000psi of Pressure
