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TU 38.101657-85

VT-301 – is a synthetic silicone-fluid-based oil with an antioxidant additive.

Range of use

VT-301 is used in gas-turbine engines with the outlet oil temperature of 250-280°C.


Index nameNorm
Kinematic viscosity, mm2/с (cSt):  
at 100°С, min. 8,5
at minus 40°С, max. 800
at minus 54°С, max. 2500
Open flash point, °C, min. 260
Pour point, °C, max. -60
Thermal-oxidative stability at 200°C within 50 hours and the air consumption of 3 dm3/hour:  
а) mass content of residue, insoluble in isooctane, %, max. 0,12
b) acid number after oxidation, mg KOH/g of oil 0,3
c) kinematic viscosity after oxidation:  
- at minus 40°C, mm2/s (cSt), max. -
- at 100°C, mm2/s (cSt), max. 10
d) corrosion wieght index after oxidation, mg/cm2, on platelets made of:  
- wrought aluminum alloy, grade AK4 (GOST 4784-74), max. ±2,0
- M1 or M2 copper grade (GOST 859-78), max. ±2,0
- steel, grade SHH –15 (GOST 801-78) ±2,0

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