Zhang, F., Qiu, J., Jin, Z., Zhang, D. et al., "Application of an Organic Molybdenum Anti-Friction Additives in API SM Gasoline Engine Oil," SAE Technical Paper 2016-01-0895, 2016, doi:10.4271/2016-01-0895.
An anti-friction additive was studied in API SM 5W-30 oil. Its tribological performance was evaluated on a four-ball tester, SRV and MTM. This additive has been found to be an effective antifriction additive for lubricants. The investigation indicates that this additive possesses excellent energy saving and reducing friction characteristics in API SM 5W-30 lubricating oil.