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Global acceptance and use of biofuels is growing rapidly in the transportation sector. Diminishing reserves of limited and costly fossil fuel resources and a growing realization that world peak oil production will most likely occur within the next decade is driving significant investment in sustainable biofuels. Legislative, regulatory and market forces are driving developments which seek to reduce vehicle emissions, improve fuel efficiency, lower environmental greenhouse gases and strengthen the economy. The use of alternate, sustainable, renewable fuels, preferably of domestic origin, is fostering considerable investment in new technologies. One promising technology is the addition of aliphatic alcohols to gasoline and diesel fuels. The compatibility of seal and hose materials commonly used in automotive fuel systems with conventional hydrocarbon fuels is well known.

Global acceptance and use of biofuels is growing rapidly in the transportation sector. Diminishing reserves of fossil fuels will continue to drive investment in sustainable biofuels. Market drivers for biofuels include a renewable supply, reduced greenhouse gas emissions and airborne pollutants, and reducing dependence on energy imports. One such fuel is biodiesel, an alternative diesel fuel produced by transesterification of vegetable oils or animal fats with alcohol, usually methanol. The use of biodiesel fuels is rapidly growing in North America, not only for the environmental and economic reasons mentioned above, but because of its inherent lubricity. EPA emission regulations now require the use of ultra-low sulfur diesel (ULSD) fuels in all highway diesel engines. ULSD has inherently poor lubricity and biodiesel's superior lubricating properties can reduce wear in diesel engines fueled with blends of ULSD, thereby extending engine life and warranty.