The document provides an overview of maintaining diesel fleets for biodiesel use. It defines biodiesel and its key properties, including its high cetane rating, lubricity and renewable nature. It discusses considerations for fuel systems, air intake, lubrication, starting, charging, cooling and emissions control systems. It notes that biodiesel blends of B20 or lower can be used with minimal issues if the biodiesel meets standards and comes from a certified supplier. OEMs support blends of at least B5 and many support B20 or higher.
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