Designed to provide superior lubricity and fuel economy while improving performance and decreasing emissions. This product is backed by industry-recognized testing to ensure that it meets the requirements of the professional truck driver. Treats up to 25% more than the competitive products. Passes multiple Cummins L10 tested with 'superior" rating. Designed to improve fuel economy by up to 3% based on the new SAE J1321 test procedure. Contains cetane improve formulated to increase cetane by 3 numbers with most fuels the normal treat rate. Gives easier starting and improved performance. Double treating gives a cetane increase of 5 numbers with most fuels. One quart treats 125 gallons.