Fleet FAQ

Got Questions? Diesel Fuel Edition

Q. Does ExxonMobil include an antimicrobial additive in its diesel fuel?

A. Most fuels, including ExxonMobil diesel, do not contain a biocide component to control microbiological activity. The best approach to control biological growth is to limit water contamination in fuel storage systems, as even the smallest amount of water present in a fuel storage tank can provide a habitat for microbe growth. This includes dormant microbe spores that would likely go unnoticed/undetected by simple test methods. Biocides are effective to use on a case-by-case basis to treat an existing overgrowth of microbes. Biocides are expensive components meant to exterminate living organisms, and are not intended to be used continuously.

Expert Bio

Answered by : Michael L. Miltenberger

Diesel Fuel Application Engineers

Mike has been with ExxonMobil for 23 years in various positions in the Fuels and Lubricants organization. He is currently the team lead for Diesel Fuel Field Application Engineers in the US and Canada. He has a BS in Chemical Engineering from Purdue University and also has CLS from STLE. In his free time, Mike spends time with his wife and kids and also enjoys playing drums and golfing.

Mike has been with ExxonMobil for 23 years in various positions in the Fuels and Lubricants organization. He is currently the team lead for Diesel Fuel Field Application Engineers in the US and Canada. He has a BS in Chemical Engineering from Purdue University and also has CLS from STLE. In his free time, Mike spends time with his wife and kids and also enjoys playing drums and golfing.

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Got Questions? Diesel Fuel Edition, Questions?

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Q. How does diesel fuel impact maintenance costs?

General fuel quality and cleanliness can have a significant impact on maintenance costs. Low quality, off-spec fuel that may contain water, particulates or other contaminants can lead to a whole host of issues such as filter plugging, fuel system corrosion, damage to fuel pumps and injectors, poor engine performance and in some cases, damage to exhaust aftertreatment systems...

Q. Are all diesel fuels the same?

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