What is Bio-diesel?

• Bio-diesel is a domestic, renewable fuel for diesel engines derived from fats and oils such as soybeans and animal fats.
• Bio-diesel can be used in any concentration with petroleum – based diesel fuel in existing diesel engines with little or no modification.
• Bio-diesel is not raw vegetable oil!
• Bio-diesel must be produced by a chemical process that removes glycerin from the oil.

Bio-diesel blend, n. – a blend of bio-diesel fuel meeting ASTM D 6751 with petroleum-based diesel fuel designated BXX, where XX is the volume percent of bio-diesel.

ASTM D 6751
Bio-diesel Fuel Specification

• Fuel quality is of the utmost concern and importance to the bio-diesel industry.
• ASTM specifications set the “gold standard” for materials, fuels, safety, new product testing, etc.
• ASTM D 6751 is the specification for bio-diesel fuels irrespective of the feedstock source and/or processing method.
• Standard ensures that bio-diesel has the fuel properties for safe operation in a compression ignition engine and ensures that poor processing has not contaminated the fuel with other products that would create engine damage.