Diesel exhaust fluid (DEF) is used to control emissions from diesel engines equipped with selective catalytic reduction (SCR) technology. This non-hazardous fluid is an aqueous solution of 32.5% urea and 67.5% deionized water.

DEF is used in conjunction with SCR technology to remove nitrogen oxide emissions generated by diesel engines. DEF is injected into the exhaust system and never added directly to diesel fuel. 

Available at Pipeline locations

Use your Pipeline Commercial card to fill up on competitively priced DEF available at selected locations.

DEF is available at the pump at numerous sites, and in bulk pack containers at Pipeline Commercial locations and Ultramar service stations.

Check out the list of Pipeline Commercial locations with bulk DEF

Pipeline sites with DEF near you

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