Shell Rotella T1 40 (CF/CF-2) High Quality Heavy Duty Diesel Engine Oils utilize well-proven performance additives to combat engine wear and prevent deposits, resulting in constant lubrication and performance. Shell Rotella T1 protects against wear and extends the life of your engine. It has a low ash level, which helps prevent deposits from forming and keeps intake ports clean. It provides good rust and corrosion protection for key engine parts.Dependable performance Shell Rotella T1 delivers reliable all-year-round performance in the applications for which it is designed.Proven durability Shell Rotella T1 provides outstanding wear protection for engine durability. It has a low ash level, which helps prevent deposits from forming and keeps intake ports clean. For important engine components, it provides excellent rust and corrosion protection. Shell Rotella T1 is suitable for older on and off-road diesel vehicles, as well as some stationary engines.Shell Rotella T1 is suitable for heavy equipment used in construction, mining, or quarry operations.Shell Rotella T1 40 is suitable for use in Detroit Diesel two-cycle engines (Series 53, 71, and 92).Hydraulic and transmission Shell Rotella T1 oils can be used in hydraulic and transmission systems.