Abstract
Jatropha curcas oil (JCO) is a good option as renewable energy for biodiesel and as lubricant feedstock. In México, the JCO is widely distributed in more than 15 states. This work describes the characterisation of Jatropha curcas oil as additive in engine oil (EO) blended mixtures. The EO and JCO were separately tested using a four balls test rig at 100%. The JCO was added and mixed as an additive to the EO too at 5%-95%, 10%-90%, 15%-85%, 20%-80%, and 50%-50%. The results have shown a steady friction coefficient for the testes carried out at different loads for the different mixtures. The friction coefficients were lower compare to the friction coefficients from the oil engine. Nevertheless, the wear scars were bigger when JCO was used. The results from the oil mixtures showed good potential for the JCO to be used as an additive.
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