Tribometer Investigation of the Frictional Response of Piston Rings when Lubricated with the Separated Phases of Lubricant Contaminated with the Gasoline Engine Biofuel Ethanol and Water

The biofuel ethanol, a viable and cost-effective gasoline substitute, is being blended at increasingly higher concentrations in gasoline, heightening the need to investigate its effects on current automotive engine lubricants in terms of fuel economy and engine durability. The friction at the piston...

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