Green motor oil made from cow fat gets test

Green Earth Technologies is testing its motor oil made from beef tallow by sending a supply to Oviedo, Fla., for the city's lawn mower and car engines. The motor oil, which is used as a lubricant and is not burned, has no odor and is biodegradable. Green Earth says the average cow has enough tallow to produce 110 quarts of motor oil.

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Orlando Sentinel (Fla.) (tiered subscription model)

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