Never assume the fuel you purchase is 100% in spec.
Here is a sample purchased at a national brand truck stop that was delivering B20 fuel, meaning 20% Biodiesel and pulled from the trucks water separator.
B20 is a common blend because it represents a good balance of cost, emissions, cold-weather performance, materials compatibility, and ability to act as a solvent. Most Biodiesel users purchase B20 or lower blends from their normal fuel distributors or from Biodiesel marketers. Regulated fleets that use Biodiesel blends of 20% or higher qualify for Biodiesel fuel use credits under the Energy Policy Act of 1992.
B20 must meet prescribed quality standards as specified by ASTM D7467.
We are told that the state regulators passed the fuel. It is oblivious they did not use step one of a fuel test. LOOK AT THE FUEL. It is not clear and it not bright and would fail all tests as to quality immediately.
The dark layer at the bottom of the container is glycerine that has continues to drop out of the Biodiesel. This reaction should have been complete at the Biodiesel processor not after it was blended with diesel.
When this hit the engine fuel system, the engine stopped and the arguing started.
Contact the fuel supplier and your insurance company.
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