Call On-Site Fuels, Inc. today for your Diesel Exhaust Fluid needs at (210) 945-0999
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Since 1997 On-Site Fuels, Inc. has been providing fueling services for construction companies, utility companies, lumber companies, concrete companies, disposal companies, car dealers and various other fleets in the San Antonio and surrounding areas.  Due to increasing demands for Diesel Exhaust Fluid (DEF), On-Site Fuels, Inc. can now provide you with Diesel Exhaust Fluid also referred to as (DEF).

Now that Diesel Exhaust Fluid is here, now what? Back in 2000-2001, the EPA set in place stricter emission control standards to be in place from 2007-2010 for all on-highway vehicles. So, starting Jan. 1, 2010, all new on-road vehicles sold must meet the emission standard of 0.2 grams of nitrogen oxide (NOx) per brake horsepower-hour.

Diesel Exhaust Fluid, also known as AUS 32, is a high purity solution of 32.5% Urea in deionized water. Diesel Exhaust Fluid (DEF) is colorless, odorless, non-hazardous, non-flammable, and non-combustible.

Here at On-Site Fuels, Inc. you will find a bulk Diesel Exhaust Fluid distribution for San Antonio and the surrounding area.  We sell 55 gallon drums, Intermediate Bulk Containers (IBC 330   gallon), and mini bulk ( 500-1500 )  gallon with all the appropriate Micro-matic fittings. On-Site Fuels, Inc. separates ourselves from the competition by supplying an API certified brand as a true wholesale experience.  We pride ourselves in supporting our customers with DEF fluid, dispensing equipment, bulk transfer systems, and much more. 


Here are the answers to the most asked questions about Diesel Exhaust fluid and its future.


Click on the following link to see how we will connect to a micro matic closed loop system, which is the preferred method of delivery.


 1000 Gallon Mini Bulk DEF


330 Gallon Tote