Fleets and owner-operators who use Calico's diesel engine coatings on their engine parts see an average benefit 40 degrees reduction in oil temperatures, 2-3 additional pounds of oil pressure, significantly less wear on bearings and an MPG increase of 3-5%. All of that translates into increased horsepower and fuel economy. The Ultra Low Sulfur Diesel (ULSD) fuel has caused engines to experience less fuel mileage, piston cracking and melting in extreme conditions. Calico's diesel engine coatings provide a more effective and even fuel burn throughout the combustion chamber resulting in a consistently higher temperature inside the chamber. This temperature equals energy that can be converted into horsepower.