- Axles & differentials
SAE 75W-140
Fully synthetic 75W-140 fluid for high-powered passenger car manual gearboxes, API GL-4
ViscositySAE
Business customers only. We sell wholesale, invoiced to registered companies.
Official approval
FCA 9.55550-MZ8 — automatic transmission fluid
FCA 9.55550 standard for automatic-transmission fluids; the MZ8 suffix indicates the level a particular gearbox requires.
Gear oil, API GL-4 service level
API's service designation for axle and manual transmission oils.
| Property | Typical value | Method |
|---|---|---|
| Appearance | Bright & Clear | |
| Density @ 15°Cg/cm³ | 0.890 | ASTM D 4052 |
| Kinematic viscosity @ 100°Cmm²/s (cSt) | 25.8 | ASTM D 445 |
| Viscosity index | 178 | ASTM D 2270 |
| Brookfield Viscosity @ -40°CmPa.s (cP) | 139000 | ASTM D 2983 |
| Pour point°C | < -40 | ASTM D 97 |
| Flash point COC°C | > 190 | ASTM D 92 |

PETRONAS Tutela GEARSYNTH is a fully synthetic manual transmission fluid delivering total protection, even in the most severe conditions, for today’s manual transmissions over their entire service life. It is especially recommended for high-powered passenger car transmissions requiring SAE 75W-140 and API GL-4. PETRONAS Tutela GEARSYNTH provides exceptional gear protection in high torque density transmissions, with excellent synchroniser performance and outstanding anti-wear and anti-pitting characteristics. Good performance at low temperature together with high oxidation resistance deliver improved shiftability and thermal stability, making it suitable for use in a wide temperature range. Specifications: API GL-4. Approvals: FCA 9.55550-MZ8 - CTR N° F056.N15. Always consult the owner’s manual to check the recommended viscosity grade and specification for your vehicle.
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