Frequently Asked Questions

DEF is short for diesel exhaust fluid and is a urea-based solution that reduces harmful nitrogen oxide emissions from diesel engines. DEF is the reactant necessary for the functionality of the selective catalytic reduction (SCR) system. It is composed of 32.5% high-purity urea, a naturally-occurring element, and 67.5% deionized water. DEF is clear, odorless and safe to handle.

Selective catalytic reduction (SCR) is one of the most cost-effective and fuel-efficient diesel engine emissions control technologies available. For passenger cars and light-duty trucks, it offers the ability to meet strict emissions and fuel efficiency guidelines affordably without compromising driving power and performance. In the commercial trucking industry, including heavy- and medium-duty trucks, the ability to reduce emissions to near-zero levels while also delivering a 3%-5% diesel fuel savings distinguishes SCR as one of the only emissions control technologies that is as good for business as it is for the environment.

A general guide is that for every 50 gallons of diesel fuel you will need one gallon of DEF. A gallon of diesel exhaust fluid will generally last about 300-500 miles.

Contact us for an estimated usage for your specific needs.

There's only one place...........DEF WAREHOUSE!!!