TRACTORELF ST3 15W-40 is designed for turbocharged or naturally-aspirated Diesel engines. This lubricant is also adapted to mechanical transmissions, gearboxes, reduction drives, bevel gears requiring API GL-4 / MIL.L.2105 SAE 80W-90 performance. TRACTORELF ST3 15W-40 is recommended for: * Mechanical transmissions fitted with oil bath brakes * Hydraulic lift and assistance circuits * Power take-offs and multidisc clutches operating in oil * Hydrostatic steering systems