Petrovoll MARINEL Mineral Marine Oil is a marine cylinder lubricant for use in all types of low speed cross head diesel engines burning residual fuels with sulfur contents of up to 2.36% weight. It is ideally suited for the new generation of highly rated, fuel-efficient slow speed marine diesel engines operating with high pressure, high temperatures and longer strokes. Its high TBN ensures that the large amount of strong acid formed during combustion is dissipated efficiently.