TS-PRO 75W90
100% synthetic lubricant for gearboxes


PROLAB's TS-PRO 75W90 is a uniquely formulated lubricant for gearboxes.  It is 100% synthetic and contains PROLAB's exclusive antifriction treatment which provide it with exceptional properties: it outclasses all standard oils on the market today, whether synthetic or mineral based.

Characteristics and Benefits

PROLAB's TS-PRO 75W90 100% synthetic lubricant with antifriction treatment for gearboxes is  the result of the most advanced research on lubricants for gearboxes to date. Its innovative formula includes top quality synthetic oils and additives derived from the most recent technological developments, including PROLAB's unique antifriction treatment. Tested in state-of-the-art laboratories and in the most demanding operating conditions, TS-PRO 75W90 has shown that:

  • The antifriction treatment guarantees power transfer integrity, smoother gear shifting, lower operating temperatures and greater reliability even under the most extreme working conditions;
  • The inclusion of high-quality additives allows TS-PRO 75W90 to offer exceptional resistance to extreme pressures, oxidation and mechanical degradation while showing extraordinary stability in the presence of contaminants and excellent anti-corrosion properties;

PROLAB's TS-PRO 75W90 100% synthetic lubricant for gearboxes is:

  • superior to mineral oils which it outclasses by its exceptional resistance to extreme pressures and mechanical stability in the presence of contaminants;
  • superior to synthetic oils with its high-quality components and additives;
  • superior to conventional oil additives with PROLAB's unique antifriction treatment.

Types of Application

Use PROLAB's TS-PRO 75W90 100% synthetic lubricant with antifriction treatment in all types of gearboxes working with heavy loads and in heavy-duty speed change gears.

safety data sheet

Directions for Use

Follow the manufacturer's instructions for the lubrication of the specific piece of equipment.


For better results, it is highly recommended to use PROLAB's DE-25 Decontaminant prior to using a new lubricant.


The TS-PRO 75W90 100% synthetic lubricant with antifriction treatment for gearboxes can be incompatible with some yellow metals (copper-zinc alloy, copper, etc.) depending on operating temperatures.

Do not hesitate to consult your PROLAB representative.

Available Sizes

4 L, 20 L, 55 L, 205 L

Product Code

# 560

characteristics astm test typical values
SAE grade   75W90
AGMA number   4 EP

API GL-5, GL-4, MT-1

U.S. Steel 224

AGMA 250.04



SAE J2360

Flash point D92 212oC
Fire point D92 226oC
Pour point D97 <= -40oC
Specific gravity at 15oC D4052 0,86 g/cm3
Viscosity at 40oC D445 100 cSt
Viscosity at 100oC D445 14,8 cSt
Viscosity index D2270 155
Brookfield viscosity at -40oC D2983 102,000 cP

Rust preventive

(A) distilled water

(B) sea water





Foaming characteristics

- Sequence #1

- Sequence #2

- Sequence #3



5/0 ml

20/0 ml

10/0 ml


- water in oil

- total free water

- emulsion



0,4 %

86 ml


Total base index D2896 1,7 mg KOH/g
4-ball wear D4172 0,32 mm

4-ball wear EP

- load wear index

- weld load




400 kg