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Methanol continues to be an important alternative fuel candidate for use in spark ignition engines. In addition to its potential as an alternative energy source, methanol has been claimed to provide benefits in possibly reducing reactive hydrocarbon emissions which contribute to ozone formation. This has resulted in considerable interest in using methanol fuels in several U.S. urban areas to assist in air pollution reduction. As a result of government incentives on these issues, engine builders are now developing new generations of vehicles capable of operating on methanol. Lubrication of these engines will require methanol-compatible oil formulations. Test work has shown that some current quality engine oils, designed for use with gasoline fuel, severely limit engine durability due to excessive wear of the valve train, cylinder bore, and bearings. A laboratory engine test program using a 2.3-liter engine has been conducted to evaluate methanol-fueled engine lubrication.