Diesel Exhaust Fluid (DEF)

Diesel Exhaust Fluid (DEF) is a solution of normally 32.5% urea and 67.5% de-ionized water. DEF is used to break down dangerous NOx emissions into harmless nitrogen and water. DEF FAQS HERE

DEF Usage Matrix


If your trucks have a Selective Catalytic Reduction (SCR) system, you’re going to need Diesel Exhaust Fluid (DEF). Ramos Oil offers high quality DEF, guaranteed to be free from impurities, keeping your vehicle’s catalyst safe from harm. Choosing Ramos Oil as your DEF supplier keeps your trucks running at full capacity. We can provide your business with the kind of DEF fluid you need 24-hours a day, 7 days a week.

Our packaging options include:DEF Diesel Exhaust Fluid Supplier - Ramos Oil

  • BULK
  • 2.5 and 1 gallon jugs

We also offer all equipment used with DEF, as it needs to be handled/stored using stainless steel, special PVC and other equipment to avoid contamination or corrosion. Call us today for your equipment needs.

Contact us to find out more about our DEF products and distribution services.