always free delivery

 Designed for fast, safe refueling of your Fleet, or personal  Diesel Exhaust Fluid needs.  


the true cost of def

 (1) 2.5 gallon     cost     $11.00

           fuel cost to pickup      $   2.00         

How much is your time & effort worth , lets use $15.00 per hour = 30 minutes    $7.50           

If you were to make a trip solely to pickup DEF you would under most circumstances use a couple dollars of fuel.    

the trip alone, cost you a additional $9.50  


About Us

How We Handle DEF

DEF, or Diesel Exhaust Fluid, is one third pure ammonia and must be handled and stored safely. We maintain our DEF temperature at  60 to 86 degrees Fahrenheit, Our company uses only sterile, containment free containers for storage and transfer. No additives are required, as DEF must keep a precise mixture of 32.5% high-purity synthetic urea and 67.5% deionized water. In addition to using API (American Petroleum Institute) approved DEF, we field test our DEF using precise refractometers. DEF ON WHEELS offers our customer service with options geared to save our customers time and money 


 We can refill directly into your vehicles TANK with DEF ON WHEELS MOBLE REFILLING STATION (MRS)  there is no need for you to do anything, no hassling with  bulky heavy boxes, Our well trained service technicians will efficiently refill and clean your fill Port on your vehicle and ensure all of your fleet or personal vehicles are replenishment safe and clean. 

Featuring the Piusi Three25 Tote System


Our fluid handling makes use of state of the art technology. Learn more here: 

Specialized Vehicles

DEF On Wheels has been investing in a safe and practical delivery system since 2011 our  specialized vehicles are designed for fast and safe refueling of your fleet or personal vehicle.   

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DEF On Wheels

6901 McDivitt Dr, suite B Bakersfield, California 93313, United States

(888) 505-7313