Petro Trans Trans 30 oil is heavy duty heavy duty engine oil and lubricant designed for use in diesel engine oil equipped with supercharger and turbocharger. Petro Trans HD 30 oil is specially designed for high speed diesel mostly installed on heavy equipment and commercial vehicles that have been formulated to meet the market requirements for high performance diesel engine oil and meet the high US diesel standards of API CF SF, containing high quality additives such as detergents-disepersant, anti oxidant, anti-foam, and anti-wear.