Method of lubricating an alcohol-based fuel engine with an engine oil composition
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United States of America Patent
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Apr 14, 1998
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N/A
app pub date -
Jul 19, 1994
filing date -
Mar 14, 1990
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Expired
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Abstract
An improvement in a method of lubricating an alcohol-based fuel engine with an engine oil composition, the improvement which comprises using as said composition an engine oil composition comprising a lubricating base oil and about 0.01 to 10% by weight based on the total weight of the engine oil composition of an alkaline-earth metal borate. Thus prepared engine oil compositions for alcohol-based fuel engines of the present invention are superior to the prior art compositions in capacity for neutralizing formic acid, wear resistance, and stability against hydrolysis.
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