HI-PUMP is supreme performance anti-wear hydraulic fluid formulated from S-Oil's ULTRA-S* base stocks and advanced additive system designed for wide temperature range applications and a wide range of heavy-duty equipment requirements. HI-PUMP also provides effective low and high ambient temperature performance due to high viscosity index. It's excellent thermal and oxidation resistance delivers good performance and extended operating intervals. * The trade-mark of S-OIL's Group-Ⅲ base oils.

​Hydraulic systems operating under high pressure and/or temperature (earthmoving, excavator, loader, etc)

High-pressure vane, piston or gear pumps

Sensitive hydraulic circuits requiring absolute filterability of the fluid (very fine servo valve play) : plastic moulding machine

Any hydraulic systems where the risk of contamination of the environment and waters exist

Any application where an anti-wear, high-performance oil is necessary​

Excellent anti-wear properties ensuring protection of machine parts.

Exceptional oxidation and aging stability : greater service oil life and lengthening of oil change intervals

Environmentally friendly formulation

Prevents formation of deposits in the circuit thanks to remarkable thermal stability : cleaner circuits, less clogging of the filters

Reduced maintenance costs ​

​ISO 11158 HL / HM / HV

Denison HF-0, HF-1, HF-2

DIN 51524, PART I,II & III

Eaton Vickers I-286-S, M-2950-S

Cincinnati Machine P-68, P-69 and P-70​