
Shell Spirax Transmission Fluids for Agriculture
Get a better return on investment from your farming equipment by reducing downtime and increasing utilisation.
Shell Spirax product portfolio for Agriculture
Flagship
Shell Spirax S2 TQ*(TR) (UTTO)
- Designed for smooth, noise-free operation of oil-immersed (wet) brakes
- Suitable for general use in a wide range of agricultural equipment
Shell Spirax S3 T 15W-40 (STOU)
- Suitable for use as engine, transmission and hydraulic oil
Premium
Shell Spirax S6 TXME (UTTO)
- Improved performance under low temperature conditions
- Superior oxidation and thermal stability
- Improved anti-wear and extreme-pressure characteristics as well for front wheel drive axles (tractors) and harvester axles
Shell Spirax S6 TFVM Plus (UTTO)
- Designed for AGCO applications (Fendt/Valtra/Massey Ferguson)
- Meeting highest specifications
Mainstream
Shell Spirax S4 TXM 10W-30 (UTTO)
- Excellent anti-oxidation, shear stability, anti-wear, anti-corrosion and anti-foam characteristics
- Approved by major manufacturers
- Meets latest specification including front wheel drive axles (tractors) and harvester axles
Shell Spirax S3 TLV (UTTO)
- Excellent low temperature fluidity
- Designed for smooth, noise-free operation of oil-immersed (wet) brakes
Shell Spirax S4 TX 10W-40 (STOU)
- Suitable for use as engine, transmission and hydraulic oil
- Meets major manufacturers‘ requirements
UTTO vs STOU: Understanding the difference
UTTO – Universal Tractor Transmission Oil
UTTOs are specialized lubricants engineered to protect and optimize the performance of a tractor’s transmission, hydraulics, and wet brake systems. They are not intended for engine lubrication.
Key Applications:
- Transmission systems: including manual, powershift (PS), continuously variable (CVT), dual-clutch (DCT), and infinitely variable transmissions (IVT)
- Differentials and transfer boxes (for engaging front-wheel drive)
- Wet brakes
- Hydraulic systems: internal (e.g., hydrostatic transmission), external, and hitch
- Power Take-Off (PTO) mechanisms
Why Shell UTTO?
- Formulated to meet OEM specifications
- Designed to handle a wide range of friction materials and control elements
- Helps prevent cross-contamination between mechanical and hydraulic systems
STOU – Super Tractor Oil Universal
STOUs are multi-functional oils intended to lubricate both the engine and the transmission/hydraulic systems of older tractors. However, they are not suitable for modern engines due to evolving performance and emissions requirements.
Limitations of STOU:
- Typically meets engine oil standards up to API CF-4
- Cannot support modern engines requiring API CH-4 or CI-4 (e.g., those with cooled EGR systems or Stage II/IIIa emissions compliance)
- No longer widely developed by oil and additive companies due to limited compatibility with newer machinery

Shell Spirax S4 TXM
Specially designed to protect hard-working agricultural equipment, meeting the demanding requirements of transmissions, hydraulic systems, oil-immersed brakes and ancillary systems fitted to agricultural tractors and heavy-duty off-road equipment.
Shell Spirax S4 TXM oil is a high-performance, universal tractor transmission oil helping to maximize reliability for increased utilization and reduced maintenance costs.
Knowledge Hub

Shell Spirax S6 TXME (UTTO)

Shell Spirax S4 TXM (UTTO)

Shell Spirax S4 TX (STOU)

Shell Spirax S3 TLV (UTTO)

Shell Spirax S3 ALS
