The use of biodiesel blended diesel fuels in fractions up to 99% result in substantial emission reductions. Sulfur oxide and sulfate emissions, major components of acid rain, are essentially eliminated with pure biodiesel and substantially reduced using biodiesel blends with minor quantities of ULSD petrodiesel. Use of biodiesel also results in substantial reductions of unburned hydrocarbons, carbon monoxide, and particulate matter compared to either gasoline or petrodiesel.



Given the right conditions, microbes will repopulate the tanks, and re-treatment with biocides will be necessary. With repetitive biocide treatments, microbes can form resistance to a particular brand. Trying another brand with a different antibiotic may resolve the problem.

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