Tulux CF-2 (SAE 40) Two Stroke Diesel Engine Oil CF-2 is formulated with high-quality base oil and a multifunctional additive system. Low ash content of 0.69% minimizes formation of deposits and helping to keep intake ports clean oxidation resistance to help maximize service life. Suitable for use in Detroit Diesel two-cycle engines (Series 53 71 and 92). Formulated especially for severe duty two- cycle diesel engine applications.