UTTO (Universal Tractor Transmission Oil) – Transmission and Hydraulic Systems
Greyhound™ UTTO (Universal Tractor Transmission Oil) is a line of high-performance lubricants formulated for use in combined transmission, axle, hydraulic and wet-brake systems in agricultural, construction, and off-highway equipment. Developed using highly refined mineral base oils and advanced additive technology, Greyhound UTTO oils deliver smooth clutch engagement, quiet brake performance, and stable hydraulic operation under heavy load and varying temperature conditions.
Greyhound UTTO provides exceptional protection against wear, oxidation, and corrosion, ensuring long component and oil life. The range meets or exceeds API GL-4 performance and the requirements of leading manufacturers, including Deutz, Volvo, Caterpillar, John Deere, Massey Ferguson, Case, and Allison.
For mixed-fleet or shared-reservoir systems where engine, transmission and hydraulics use the same lubricant, Greyhound recommends our complementary product lines such as G-Power 15W-40 and STOU (Super Tractor Oil Universal).
- UTTO is formulated for transmissions, axles, hydraulics, and wet brakes – not for engines.
- STOU (Super Tractor Oil Universal) includes engine detergent additives, allowing use in both engines and driveline systems.
- Both products simplify fleet lubrication and reduce the number of different oils required.
- Some systems may require dedicated UTTO and STOU fluids depending on OEM specifications.
- Always refer to the manufacturer’s recommendation for optimal performance and equipment protection.
Universal Tractor Transmission Oil – for Hydraulic and Transmission Systems
Application
Greyhound™ UTTO 80W / 10W-30 is a high-quality Universal Tractor Transmission Oil (UTTO) designed for use in hydraulic, transmission, axle, and wet-brake systems of agricultural and construction machinery operating in cool-to-moderate climates. Formulated with highly refined mineral base oils and a balanced friction-modified GL-4 additive system, it provides smooth clutch engagement, quiet brake operation, and quick hydraulic response at low temperatures. The optimized 10W-30 viscosity ensures excellent cold-start fluidity, reliable film strength, and protection against wear, oxidation, and corrosion throughout extended service intervals.
Specifications
Transmission & Axle Systems: API GL-4 (SAE 10W-30 / 80W), ZF TE-ML 03E / 05E / 05F / 06K / 17E / 21F, Allison C3 / C4, Caterpillar TO-2, John Deere JDM J20 C / D, Case MS 1207 / 1209 / 1210, Ford M2C 134 C / D & 86 B / C, Kubota UDT, Massey Ferguson CMS M 1135 / 1141 / 1143 / 1145, Valtra G2-08 XT-60 / XT-810 (XT-60 Plus), Volvo WB 101.
Hydraulic & Wet-Brake Systems: ISO VG 32 / 46 / 68 (equivalent range), DIN 51524 Part 2 & 3 (HLP / HLP-D).
Benefits
- Fast hydraulic response due to excellent low-temperature flow characteristics.
- Stable frictional properties for smooth clutch operation and quiet wet-brake performance.
- Strong anti-wear and load-carrying ability protects gears, bearings, and hydraulic pumps under pressure.
- Superior oxidation stability minimizes sludge and varnish formation for longer oil life.
- Effective corrosion and rust protection safeguards metal surfaces from moisture exposure.
- Excellent air release and anti-foam properties maintain hydraulic pressure and prevent cavitation.
- All-season usability for tractors and agricultural machinery operating in cold to temperate environments.
- UTTO vs STOU: UTTO is for transmission, axle and hydraulic systems only; STOU also serves as an engine oil with detergent additives and is not interchangeable.
Universal Tractor Transmission Oil – for Heavy-Duty Equipment
Application
Greyhound™ UTTO 85W / 20W-40 is a high-performance UTTO developed for modern and older agricultural, construction and forestry machinery requiring robust driveline and hydraulic protection. Formulated with highly refined mineral base oils and a friction-modified GL-4 additive package, it provides smooth clutch engagement, quiet brake performance, and stable hydraulic response under heavy load and high temperature. The balanced 20W-40 viscosity delivers exceptional film strength, oxidation resistance, and shear stability, extending component and oil life even under severe operating conditions.Specifications
Transmission & Axle Systems: API GL-4 (SAE 20W-40 / 85W), ZF TE-ML 03E / 05E / 05F / 06K / 17E / 21F, Allison C3 / C4, Caterpillar TO-2, John Deere JDM J20 C, Case MS 1207 / 1209 / 1210, Ford M2C 134 C / D & 86 B / C, Kubota UDT, Massey Ferguson CMS M 1135 / 1141 / 1143 / 1145, Valtra G2-08 XT-60 / XT-810 (XT-60 Plus), Volvo WB 101. Hydraulic & Wet-Brake Systems: ISO VG 46 / 68 / 100 (equivalent range), DIN 51524 Part 2 & 3 (HLP / HLP-D).Benefits
- Smooth transmission & hydraulic performance with quiet wet-brake operation.
- Strong anti-wear & EP protection under heavy torque and shock load.
- Outstanding oxidation and thermal stability for longer oil life.
- Excellent corrosion control even with moisture and condensation exposure.
- Effective anti-foam properties prevent hydraulic cavitation and pressure loss.
- All-season reliability for tractors and earth-moving machinery.
- Extended service life reduces downtime and operating costs.
- UTTO vs STOU: UTTO is for transmission, axle and hydraulic systems; STOU adds engine detergent chemistry and is not interchangeable.