- Type: API certified 4-stroke motorcycle oil
- Viscosity: 10W-40
- Capacity: 2.2 quarts (2.1 L) with filter change
The recommended engine oil for 2006-2023 Yamaha Raptor 660 is:
- Type: API certified 4-stroke motorcycle oil
- Viscosity: 10W-50
- Capacity: 2.4 quarts (2.3 L) with filter change