Torco MPZ TD-1 Super Diesel Motor Oil is designed for long drain intervals in engines using high sulfur fuels. It meets warranty requirements of American, Japanese and European diesel engine manufacturers. With high alkaline reserve (9-TBN) and corrosion inhibitors, MPZ Super Diesel protects bearings against acids formed during combustion of high sulfur fuels. MPZ Super Diesel Motor Oil is a blend of highly refined hydrocracked base oils and the most advanced detergents and dispersants plus Torco's MPZ friction and wear reducing additive. Low sulfated ash and superior anti-wear properties contribute to longer engine life, fewer oil changes and less waste oil.