All of us at BHR use this gear oil in our manual transmissions, whether on the street or at the track and we have discovered it to be the best transmission and differential fluid for the Mazda RX-8.
ENEOS Gear Oil
OVERVIEW
ENEOS Gear Oil GL-5 75W90 is a high performance gear oil using the latest sulphur-phosphorus technology. This additive technology assures an excellent protection of the gears against metal-to-metal contact under the most severe conditions, even under shock-loads. ENEOS Gear Oil is recommended for use in bevel, spiral bevel and hypoid gear type differentials and in power dividers compatible with synchromesh ensures easy and smooth shifting even at very low temperatures.
APPLICABLE VEHICLES
Manual transmission and none-limited differentials.
Any manual transmission or differential (NON-LSD) requiring 75W-90 & GL5 viscosity
| Quality grade | GL-5 |
| SAE viscosity grade | 75W-90 |
| Density (15°C), g/cm3 | 0.890 |
| Flash point (COC), °C | 192 |
| Kinematic viscosity | |
| (40°C), mm2/s | 82.0 |
| (100°C), mm2/s | 14.7 |
| Viscosity index | 188 |
| Low-temperature viscosity (-40°C) mPas | 15,000 |
| Pour point, °C | -42.5 |
| TAN, mgKOH/g | 1.30 |
| TBN (HCl), mgKOH/g | 4.3 |
| Color (ASTM) | L1.0 |
Note: The typical properties may be changed without notice. (August 2009)