Royal Purple 80561 Duralec Ultra 15W40 Oil Case, 3 Gallon, 1 Pack

Duralec motor oil is a high performance synthetic oil made Diesel engines requiring the use of an emissions compliant oil for the 2007 and 2010 emissions equipment. It is specially formulated to maximize component life and extend drain intervals. It features improved fuel performance with excellent high temperature break down resistance and low temperature pumpability to maximize cold-induced startup wear.