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The technology has been developed which will allow manufacturers to produce cars capable of running on methanol/gasoline blends with a methanol content up to 85% (i.e., M85). These cars will operate on varying methanol/gasoline ratios without any adjustments from the driver. The dual-fuel capability is attractive since vehicle use will not be handicapped by a restricted fuel distribution system. In addition, it provides the option of running on an environmentally “cleaner” fuel where it is available. The advent of fuel-flexible vehicles encourages the development of lubricants which will satisfy the demands of both fuels. The unique properties of methanol, however, increase the challenges of meeting the lubricant performance needs. Field and engine dynamometer testing have been aimed at understanding the response of key lubricant variables with M85. Short-trip, cold-weather conditions have been of particular concern.