TOTAL RUBIA OPTIMA 1100 15W-40 is developed for the newest North American on-road diesel engines and suitable for existing diesel engines due to its backwards compatibility down to CJ-4.With its low-SAPS" (low sulphated ash, phosphorus and sulphur) technology, TOTAL RUBIA OPTIMA 1100 15W-40 protects diesel engines equipped with post-treatment systems such as diesel particulate filters (DPFs).TOTAL RUBIA OPTIMA 1100 15W-40 enables coverage of a fleet of mixed brands, with a minimal number of products."