Trucking Info

Fleet FAQ

Got Questions? Diesel Fuel Edition

Q. Are all diesel fuels the same?

A. This might come as a surprise, but they’re not! While diesel fuels are typically produced according to regional specifications that set requirements for properties like lubricity and cetane number, the addition of fuel additives can make a big difference when it comes to performance.

In the US, No. 2 diesel fuel is often blended with an additive called a cold flow improver during the winter in colder regions. This improves the fuel’s low temperature operability, so filters don’t plug with gelled fuel. Diesel detergents are another big player in fuel performance. They clean up fuel injector deposits, which restores engine performance and can result in improved fuel economy and lower emissions. Most diesel fuel in the US does not contain a detergent but using one that does can have a significant impact on vehicle performance and operating costs.

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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