Diesel Exhaust Fluid

 

CountryMark supplies only API-certified UltraPure Diesel Exhaust Fluid (DEF). Here are some frequently asked questions regarding the use of DEF.

What is DEF and how is it used?Diesel Exhaust Fluid (DEF) is an automotive grade of 32.5% urea mixed with 67.5% demineralized water. It’s non-hazardous, non-toxic and non-flammable. DEF is used in Selective Catalytic Reduction (SCR) systems to change dieselpowered bus, car and truck NOx emissions to nitrogen and water.

How often will I need DEF? DEF will be used at about 2% - 3% of your diesel fuel consumption. So, every time you use 100 gallons of diesel fuel you will need approximately 2 – 3 gallons of DEF.

Is DEF a fuel additive? No. There is a separate tank for the fluid. DEF should not be added to the fuel tank.

What are the benefits of using DEF? Diesel engines equipped with SCR using DEF not only meet the 2010 tailpipe standard, they also deliver a significant fuel economy benefit.

Does it matter what DEF brand I purchase? Yes, it does. UltraPure is an API-certified, ultrapure, formaldehyde-free DEF. It is manufactured by Brenntag, the largest North American producer of DEF. 

Who has selected UltraPure? UltraPure is the factory fill and dealership choice for Volvo Trucks North America, Mack Trucks, Daimler Trucks North America, Freightliner, Ford, GM, Chrysler and Hino, to name a few.

Can I purchase UltraPure? What size would you like? UltraPure is available in 1-gallon and 2.5 gallon bottles, 55 gallon drums, 275-gallon and 330-gallon totes, and bulk.

CountryMark Fuels Power the Indiana State Fair
The 2017 Indiana State Fair will run from August 4-20 at the Indiana State Fairgrounds in Indianapolis. During this 17-day fair, the tractor shuttles will be powered by CountryMark's Premium Dieselex-4, and the antique tractors will be powered by CountryMark PLUS gasoline.
 
CountryMark to Host Biodiesel Celebration
This Wednesday, July 12, we will host Indiana Lt. Governor Suzanne Crouch at our refinery in Mt. Vernon, Ind. We invite farmers, fleet managers and biodiesel supporters to join Indiana's Lt. Governor at our refinery Pavilion at 11 a.m. Wednesday to hear remarks from our CEO, an Indiana farmer and an Illinois truck fleet owner about why they believe in biodiesel-blended fuels. Let's show Indiana's Lt. Governor that we believe in American-made fuels and we support our local soybean farmers!
 
CountryMark Fueling Freedom event raises $50K for military families
Helping to support local military families, the CountryMark system raised more than $50,000 during Fueling Freedom events in Indiana, Illinois and Ohio on Friday, June 23.
 
Fueling Freedom to raise money for military families
On Friday, June 23 between noon and 5 p.m. at participating CountryMark fuel stations, CountryMark will donate to local National Guard Family Readiness Groups.
 
CountryMark fuels new History on Wheels traveling exhibit
The Indiana Historical Society recently debuted a one-of-a-kind history experience focused on sharing Indiana's auto heritage. CountryMark is proud to serve as the key fuel sponsor for the History on Wheels traveling exhibit for 2017.
 
 

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