Biodiesel blends for fueling diesel engines
Commercially produced biodiesel is a safe and reliable alternative fuel that can be used in diesel engines with little or no need for modification to existing engines and fuel systems. Most commercially available biodiesel fuels are actually biodiesel blends that are properly referenced with the letter B followed by a one- or two-digit number that represents the percentage of biodiesel used in the blend with petroleum diesel fuel. Pure biodiesel is sometimes called "neat" biodiesel and is also referred to as B100. The most common biodiesel blends are B2, B5, B10, B20 and B50. The remaining fraction is petroleum-based diesel fuel, which is often referred to as petrodiesel.
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