The OS-250R Super Lock LSD Gear Oil is exclusively for use with your OS Giken Super Lock LSD. This is been developed along side the oil manufacturers and though the years of experience on the race tracks. Since the Friction Modifier agent suitable for mechanical type LSD is used, it reduces the generation of abnormal noise (chattering) and abnormal vibration of your LSD, and at the same time draws the original performance of the LSD. Because it uses additives with excellent stick torque performance, it can also be used for manual transmission.
Features
- Exclusive for the OS Super Lock LSD
- Developed with the oil manufacturers
- For Front Engine/Rear Wheel Drive Cars
Specifications
- Type: Full Synthetic
- Use: For automotive gear
- SAE: 80W-250
- API: GL-5
- Flash point: 208C
- Kinetic viscosity: 320.5 (40C), 43.7 (100C)
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OS Giken was founded in 1973 in Okayama by Masaharu Okazaki as the Okazaki Speed Technology Research Institute, a tuning shop for cars and motorcycles. It became OS Giken Co., Ltd. in 1988. Okazaki built his own high-revving twin-cam engines, the TC16 and TC24-B1, and began making stronger drivetrain parts because stock ones could not take the power.
A Violet with a TC16-MA II won the 1980 All Japan All-Star Dirt Trial, and a 280Z with a TC24-B1 took third in its class at the 1982 SCCA Pro Rally in Nevada. OS Giken still makes clutches, limited-slip differentials and gearboxes, including the OS-FR7 7-speed sequential, from its base in Okayama.











