The increasing use of bioethanol causes tribological effects on engine components. It is crucial to study the effect of bioethanol on oil degradation and friction and wear behaviors of engine oil, using four-ball wear tester.
Owing to the growing concern over the depletion of fossil fuels and the rising rate of greenhouse gas emissions which will lead to global warming, many researchers are now dedicated to producing biofuels in order to solve the above-mentioned issues.
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