What Is Diesel Exhaust Fluid (DEF)?
Diesel Exhaust Fluid (DEF) is essential for keeping modern diesel engines running clean and compliant. This non-toxic, colorless solution, made from urea and deionized water, works within your vehicle’s Selective Catalytic Reduction (SCR) system to break down harmful nitrogen oxides (NOx) into nitrogen and water vapor. This results in significantly reduced emissions and a fleet that stays aligned with federal and state environmental standards.
When DEF is injected into the exhaust stream, it reacts with gases inside the SCR system to lower NOx levels without sacrificing engine performance or fuel efficiency. Maintaining proper DEF levels is critical because running low can reduce engine power or even trigger diesel limp mode, causing poor fuel economy, unnecessary downtime and lost productivity. Keeping your DEF topped off means keeping your vehicles on the road and your operations moving efficiently.
Why Quality DEF Matters for Your Fleet
Not all DEF is created equal. Using low-quality DEF can introduce impurities that damage your fleet’s SCR systems, leading to expensive repairs, unexpected downtime, and reduced fuel efficiency. Over time, that directly impacts your bottom line. That’s why sourcing high-quality DEF is essential.
Because DEF is a sensitive product, we follow two strict standards with everything we supply:
- We only carry DEF that meets ISO quality standards: ISO 22241 and ISO 22241-1.
These globally recognized standards ensure purity, consistency, and proper handling, so your SCR systems stay protected.
- We only distribute DEF in Micro Matic closed dispensing systems.
The product remains fully sealed and protected from contaminants, preserving its integrity from storage to dispense. Tamper-evident packaging helps safeguard your equipment and supports manufacturer warranty requirements. At Energie Fuel Group, we don’t cut corners when it comes to protecting your equipment and keeping your fleet running efficiently.
Available Packaging & Delivery Options
Energie Fuel’s Bulk DEF Solutions
As one of Southern California’s trusted bulk Diesel Exhaust Fluid suppliers, we provide DEF in a range of packaging options to support fleets of every size and industry. Whether you need 2.5-gallon jugs, 55-gallon drums, 275- or 330-gallon totes, or direct bulk tank deliveries, we make it simple to keep your operation stocked, compliant, and running smoothly.
With flexible delivery schedules, on-site storage solutions, and competitive wholesale pricing, Energie Fuel Group helps you save time, reduce costs, and maximize space while keeping every vehicle road-ready.
Package sizes we carry: 2.5gal Jugs, 55gal drums, 275gal and 330gal totes.
If you need a larger setup, we will be happy to accommodate all equipment and installation.
Brands We Carry
If you need a larger setup, we will be happy to accommodate all equipment and installation.