BG244 Diesel Fuel System Cleaner Unmatched in the industry, BG's line of diesel fuel products and equipment can restore diesel fuel economy or solve nearly any diesel fuel system issue. BG244 removes carbon deposits from combustion chambers, restores performance, smooths engine idle and helps prevent costly repairs. One 11oz can treats up to 15 gallons This diesel fuel additive complies with the Federal low-sulfur content requirements for use in diesel motor vehicles.