A Study of Engine Oils with Low Friction for Motorcycles
2005-32-0061
10/12/2005
- Event
- Content
- A four-cycle engine oil formulation with outstanding fuel economy and clutch-slippage prevention has been developed for motorcycles. Fuel economy performance was evaluated by testing low-friction formulations with a motor-driven torque measurement tester and an SRV reciprocating friction tester. An optimized formulation containing both a molybdenum compound and a phosphorus extreme-pressure agent was found to give the best low-friction performance. The further addition of a boron-type dispersant maintained the low-friction performance while preventing clutch slippage. When test-produced oils were used for 1800 km in a commuter motorcycle, the fuel economy improved by 6 to 7% compared with an existing commercial oil.
- Pages
- 5
- Citation
- Ishimaru, M., Okada, T., and Ohashi, A., "A Study of Engine Oils with Low Friction for Motorcycles," SAE Technical Paper 2005-32-0061, 2005, https://doi.org/10.4271/2005-32-0061.