Where to Find DEF at the Pump: Map and List of Stations

For businesses with diesel vehicles, having a reliable source of diesel exhaust fluid (DEF) is critical since almost all diesel vehicles manufactured after 2010 require it. When DEF first became available, businesses would have to purchase DEF containers at the store or keep DEF in bulk tanks at their yards as many gas stations and truck stops did not provide DEF at the pump. Fortunately, as the demand for DEF increased, many gas stations and truck stops began supplying it at the pump for drivers.

Purchasing DEF at the pump is more convenient for drivers than carrying bulky containers in their vehicles, especially since they already have to stop at a station to purchase diesel fuel for their vehicles. It’s also typically more affordable than buying pre-packaged containers at retail stores.

The main challenge is identifying which fuel stations offer DEF at the pump. To help you find these locations, we created a state list and national map showing where you can buy DEF at the pump.

Table of Contents

• What is DEF?
• How much cheaper is DEF at the pump?
• How to use DEF pumps at fuel stations
• Who sells DEF at the pump near me?
• How to find gas stations and truck stops with def at the pump: map & list of locations

What is DEF?

DEF stands for diesel exhaust fluid. It's a non-toxic, colorless, and odorless liquid used in modern diesel engines equipped with selective catalytic reduction (SCR) systems to reduce harmful emissions. DEF is made of 32.5% urea and 67.5% deionized water which is injected into the exhaust stream of a diesel engine where it reacts with NOx gases in the SCR catalyst, breaking them down into harmless nitrogen and water vapor.

DEF is used in most diesel vehicles manufactured after the 2010 Environmental Protection Agency (EPA) mandate to reduce diesel vehicle emissions. These vehicles have a separate tank for DEF that is usually located near the diesel fuel tank or under the hood in smaller vehicles.

How Much Cheaper is DEF at The Pump?

At big box retail stores, packaged 2.5 gallon DEF containers range from $8.88 ($3.55 per gallon) for unbranded DEF to $19.99 ($7.99 per gallon) for branded DEF. Convenience stores usually charge higher prices for DEF containers.

We analyzed DEF pump prices at over 1,000 stations and found that DEF fluid prices at the pump range from $3.04 to $4.99 per gallon. That means buying DEF at the pump can be $0.51 to $3.00 per gallon cheaper than buying DEF containers at the store when you compare the lower and higher ranges of potential prices.

How to Use DEF Pumps at Fuel Stations

The DEF pumps are usually located near the truck diesel islands and can be used just like regular diesel pumps. Make sure to pay attention as you fill up because a common mistake is for people to accidentally put DEF in their diesel tank or diesel in their DEF tank, both of which can lead to costly repairs. DEF nozzles are usually blue and are much smaller than diesel nozzles that are usually green.

Who Sells DEF at the Pump Near Me?

Most major truck stops supply DEF at their diesel islands for truck drivers to easily access. Some gas stations and CFN stations have DEF at the pump as well. Below are brands with the most locations that have DEF at the pump in the U.S.

If your business operates primarily in the Western U.S., where CFN sites actually outnumber truck stops, consider using CFN fuel cards to gain access to DEF, among other fuel products, at CFN locations.

How To Find Gas Stations and Truck Stops with DEF at the Pump

Here is an interactive map and a state list of stations that carry DEF fluid at the pump in the United States.

Map of Gas Stations and Truck Stops with DEF at the Pump

List of Gas Stations and Truck Stops with DEF at the Pump

Jump to a state: AL | AK | AZ | AR | CA | CO | CT | DE | FL | GA | HI | ID | IL | IN | IA | KS | KY | LA | ME | MD | MA | MI | MN | MS | MO | MT | NE | NV | NH | NJ | NM | NY | NC | ND | OH | OK | OR | PA | RI | SC | SD | TN | TX | UT | VA | WA | WV | WI | WY

Alabama DEF Stations

Alaska DEF Stations

Arizona DEF Stations

Arkansas DEF Stations

California DEF Stations

Colorado DEF Stations

Connecticut

Delaware DEF Stations

Florida DEF Stations

Georgia DEF Stations

Hawaii DEF Stations

Idaho DEF Stations

Illinois DEF Stations

Indiana DEF Stations

Iowa DEF Stations

Kansas DEF Stations

Kentucky DEF Stations

Louisiana DEF Stations