Diesel Exhaust Fluid

Santoro Oil distributes Ocean Blue Diesel Exhaust Fluid throughout Providence, Kent, and Bristol counties.

Diesel Exhaust Fluid is an EPA mandated additive for 2010 and newer diesel trucks and equipment in Selective Catalytic Reduction (SCR) systems. Diesel systems naturally produce a high level of NOx as part of the exhaust system. DEF helps to reduce this to zero through injection in the exhaust pipeline. Once DEF enters the exhaust pipeline it turns the NOx into water and nitrogen which are harmless to the environment.

Santoro Oil distributes Ocean Blue Diesel Exhaust Fluid which is manufactured here in Rhode Island by Ocean State Oil. Ocean Blue is manufactured according to ISO 22241 standards and is certified by the American Petroleum Insitute. High-quality DEF is important to maintaining the SCR system, any impurity in the DEF can lead to a failure of the SCR system.


Benefits of DEF

  • Diesel Exhaust Fluid increases the Fuel economy of your diesel equipment
  • Reduces the wear and tear of your trucks and equipment
  • Allows for more power within your diesel engine
  • Your fleet of Diesel trucks and equipment become green, helping to preserve our environment


  • Why Choose Santoro Oil for DEF

    Santoro Oil has been a leader in residential and commercial heating needs in Rhode Island for over 60 years. Thanks to these years of experience and knowledge we can keep your Diesel equipment running at peak performance while meeting the EPA regulations set for Diesel equipment made after 2010.

    Our direct relationship with Ocean State Oil, Santoro Oil can supply your commercial business with on-site DEF deliveries. When your business becomes a DEF customer we will work with you to develop an optimized delivery schedule to meet your fleets DEF needs. Our direct relationship with Ocean State Oil gives us an unlimited supply of DEF, meaning our Diesel Exhaust Fluid customers will never go without product.

    Diesel Exhaust Fluid On-Site Delviery

    Call Us Today (401) 942-5000 • Office Located in Providence

    101 Corliss Street, Providence, RI 02904
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