10W-40 (STOU) Traktorenöl

10W-40 STOU tractor oil is designed as a universal multifunctional lubricant for modern and classic agricultural and utility machinery. It supplies engine, transmission, hydraulics, torque converters, final drives and wet brakes with a harmonized lubrication concept, helping keep fleets technically clean and logistically streamlined.

Especially in farms, contractors and municipal fleets, this multi-use capability is a real advantage. Instead of stocking several oils for different assemblies, 10W-40 STOU tractor oil can cover many typical applications—provided the respective manufacturer explicitly allows this STOU profile.

The 10W-40 viscosity provides a bit more temperature reserve than a 10W-30 STOU. This is particularly useful when machines operate year-round under high loads, in PTO work, with hydraulic attachments or during extended warm operating phases.

Applications

Typical uses include tractors, yard loaders, telehandlers, agricultural and utility machines where engine, manual transmission, hydraulic systems and wet brakes are combined in a coordinated lubrication concept. Manufacturer approval remains essential, especially for CVT, special or separate hydraulic systems.

Benefits in use

• Multifunctional use in engines, transmissions, hydraulics and wet brakes of many agricultural and work machines
• Reduces the risk of misfills as fewer oil types need to be stocked
• Simplifies planning, purchasing and storage in workshops and depots
• Suitable wherever SAE 10W, 15W-30, 20W-20, SAE 30 or SAE 40 ranges are specified in transmissions or hydraulics
• Consistently high friction characteristics support clean braking performance without noise
• Good viscosity-temperature behavior and high shear stability ensure reliable year-round operation
• Protects against corrosion, black sludge and load-related deposits
• Stable lubricating film even at high temperatures and under continuous heavy load with strong wear protection
• Very low oil consumption thanks to HC-synthesis base and robust additive system
• High oxidation resistance supports clean running and stable oil performance over the service interval
• Miscible with conventional and synthetic branded oils, though a complete oil change is recommended for full performance

FAQ zu 10W-40 (STOU) Traktorenöl

What is the difference between STOU and UTTO?
STOU can also be used in the engine, while UTTO is designed for transmissions, hydraulics and wet brakes. If you want one product for engine and transmission, you need a suitable STOU.

When is 10W-40 STOU preferable to 10W-30 STOU?
When the machine approval allows a higher viscosity or operation often involves higher thermal load, heavy draft work or longer warm phases.

Can 10W-40 STOU tractor oil be used in wet brakes?
Yes, the product is designed for that purpose, provided the relevant machine or manufacturer approval for brakes and transmission is met.

Typical properties

Storage notes

All containers should ideally be stored under cover. If stored outdoors without shelter, keep containers lying down to prevent water ingress and preserve label readability. Do not store at temperatures above 60 °C. Protect from direct sunlight and frost.