Engine oil is a major factor in the performance and service life of the engine. Always use the proper grade of oil for the lowest temperature expected before the next scheduled oil change. Your authorized dealer has the proper oil to suit your requirements.
Refer to
Table 1. Buell recommends using Screamin' Eagle
® SYN3 Synthetic Motorcycle Lubricant when adding or changing oil. If SYN3 is not available and addition of motor oil is required, H-D 360 SAE 20W50 may be used. Although H-D 360 is compatible with SYN3, we suggest the mixture of the fluids be changed as soon as possible.
If SYN3 or H-D 360 are not available, the final option would be to add a synthetic 15W-50 oil that meets SG and JASO MA specifications. We again suggest the mixture of the fluids be changed as soon as possible. At the first opportunity, see an authorized dealer to change back to 100 percent Harley-Davidson oil.
NOTICE
Do not switch lubricant brands indiscriminately because some lubricants interact chemically when mixed. Use of inferior lubricants can damage the engine. (00184a)
Table 1. Recommended Engine Oils
H-D TYPE | VISCOSITY | H-D RATING | LOWEST AMBIENT TEMPERATURE | COLD WEATHER STARTS BELOW 50 °F (10 °C) |
|---|
Screamin' Eagle SYN3 Synthetic Motorcycle Lubricant | SAE 20W50 | HD 360 | Above 4 °C (40 °F) | Excellent |
H-D Multi-grade | SAE 10W40 | HD 360 | Below 4 °C (40 °F) | Excellent |
H-D Multi-grade | SAE 20W50 | HD 360 | Above 4 °C (40 °F) | Good |