The ENPO STOU SAE 10w30 is a Super Tractor Oil Universal (STOU). As the name suggests, it is a universal Transmission lubricant meant for tractors and similar heavy machinery It is a mineral based transmission oil, suitable for air cooled engines of heavy duty machinery.




Excellent Engine Protection

Excellent Corrosion Protection

Perfect Cold Start

Minimal Friction

Exceptional Engine Cleanliness


The ENPO Super tractor oil universal is applicable to most two stroke air cooled  engines. Such as those  present in tractors and similar heavy duty machinery. Being a universal oil, it can also be applied to the hydraulic systems and transmissions of such machinery.

API performance Level

API         TC


Parameters Test Methods Unit Result
Density at 15 ASTM D4052 g/ml 0.880
Kinematic Viscosity at 40 ASTM D445 mm²/s 55.3
Kinematic Viscosity at 100 ASTM D445 mm²/s 8.3
Pour Point ASTM D6892 -15
Flash Point ASTM D92 106
Viscosity Index ASTM D2270 121
B.N (HClO4 Method) ASTM D2896 mg KOH/g 1.1
Color Visual RED

STOU stands for Super tractor oil universal, whereas 10W30 is a viscosity rating that explains the lubricant’s thickness and flow characteristics at different temperatures.

The ENPO Super tractor oil universal, as the name suggests, is a tractor and heavy machinery oil. It is not for use with everyday cars.

It may be okay for you to use your ENPO Super tractor oil universal, 10w30 lubricant on your lawn mower however, make sure to check your lawn mower’s requirements as using the wrong oil may damage your engine.

The ENPO Super tractor oil universal, 10w30 lubricant provides excellent protection to your  engine from rust and wear and tear. It also keeps your engine clean and minimizes friction, thereby maximizing the life of your engine.

Weather you are using the ENPO Super tractor oil universal, or any other transmission lubricant.Make sure to always refer to your tractor’s manual while considering oil change intervals, as they not only depend on the oil used but also on the engine itself and the work load

Mixing the ENPO Super tractor oil universal is not recommended as different oils have different formulations and mixing may cause the resultant to be incompatible with your engine.

The ENPO Super tractor oil universal, having the word ‘universal’ in its name, is indeed applicable to both diesel and gasoline engines in tractors

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