Motul 7100 and 8100 are one digit apart, both 100% synthetic, and completely non-interchangeable. Shoppers mix them up every day, and the mistake can cost a clutch.
7100 is motorcycle oil
Motul 7100 is a full-synthetic 4-stroke motorcycle oil with ester technology. The linked 7100 5W-40 product lists JASO MA2 (2023) and API SP. For a wet-clutch motorcycle, match the exact JASO designation and viscosity required by the owner manual and shown on the product label.
8100 is car oil
Motul 8100 is a full-synthetic automotive oil. The 8100 line is for automotive applications. Choose the exact 8100 product only when its OEM, API, or ACEA specification and viscosity match the vehicle owner manual.
Side by side
Choose the product family for the machine, then match the exact viscosity and specifications in its owner manual.
7100 Motorcycle
Motorcycle oil family. Confirm the exact JASO designation and viscosity required by your owner manual.
8100 Automotive
Automotive oil family. Match the exact OEM, API, or ACEA specification and viscosity in the vehicle manual.
| 7100 | 8100 | |
|---|---|---|
| Machine | Motorcycles (wet clutch) | Cars, trucks, SUVs |
| Key standard | JASO MA2 (2023), API SP for the linked 7100 5W-40 product | API SP, ACEA, OEM approvals |
| Friction target | High friction so the clutch grips | Low friction for fuel economy |
| Gearbox duty | Shared sump, gear-shear resistant | Separate transmission |
The exceptions
A few bikes (some BMWs, Harleys with separate primaries) don't share oil with the clutch, but Motul builds dedicated products for those anyway (TWIN 20W-50 for V-twins, with matching primary and gear oils).
Quick answer
- Motorcycle: 7100 (or 5100 / 300V. See our motorcycle oil guide)
- Car or truck: 8100 in the spec your manual calls for. Browse Automotive Oil