Greyhound STOU 20W40 GL-4 CG-4 5L
Greyhound STOU 20W40 is a high-quality Super Tractor Oil Universal that lubricates engine, transmission and hydraulic systems in one product. Specifically, it serves naturally aspirated, turbocharged and supercharged engines, so farmers simplify their oil inventory.
Because it covers mechanical transmissions and hydraulic clutches, this oil suits tractors, excavators and construction machinery. Moreover, the universal formula reduces the number of products on the shelf, so it cuts complexity and cost.
Universal protection for engines, transmissions and hydraulics
For example, the SAE 20W-40 grade balances cold flow with high-temperature strength. In addition, the additive system protects gears and wet clutches. As a result, the oil reduces wear across systems. Therefore, equipment runs reliably. Furthermore, downtime falls during peak seasons.
Key Features:
- Super Tractor Oil Universal (STOU) formulation
- One oil for engine, transmission and hydraulics
- Suits aspirated, turbo and supercharged engines
- Protects wet brakes and hydraulic clutches
- Strong anti-wear and thermal stability
- Ideal for agricultural and construction fleets
Technical Specifications:
- Engines: API CG-4; ACEA E3; SAE J300 20W-40; MAN 27.1
- Transmissions: SAE J306 75W-90; ALLISON C-4; CAT TO-2/TO-4
- Transmissions: FORD M2C159 B/C; John Deere JDM J 20 C; MF M1135/1139; ZF TE-ML 06A
- Hydraulics: ISO VG 100; DIN 51524.2/3 HLP/HVLP-D; AFNOR NFE 48603 HV
Applications:
- Tractor engines, transmissions and hydraulics
- Excavators and construction machinery
- Mixed agricultural fleets needing one oil
View the full Greyhound engine oil range, or review engine categories from the American Petroleum Institute.
What’s in the Box:
- 5L Greyhound STOU 20W-40 universal tractor oil






