Wholesale Diesel Exhaust Fluid for Fleets, Equipment & Job Sites
Modern diesel engines demand more than just fuel—they demand compliance. At OilWorks, we provide Columbus businesses with reliable, high-quality DEF (Diesel Exhaust Fluid) delivery to keep operations running clean, efficient, and within EPA regulations.
Whether you're fueling a fleet of trucks or keeping heavy-duty equipment on track, we offer wholesale DEF delivery solutions built around your needs—on time and on budget.
What Is DEF—and Why Does It Matter?
DEF is a non-toxic, colorless fluid made from 32.5% urea and 67.5% deionized water. It’s used in Selective Catalytic Reduction (SCR) systems to reduce harmful nitrogen oxide (NOx) emissions in diesel engines.
Any diesel vehicle or machine with SCR tech needs DEF to operate—and without it, engines are limited or shut down. That’s why timely DEF delivery is critical for:
-
Trucking fleets and logistics companies
-
Construction and heavy equipment operations
-
Agricultural machinery
-
Municipal and government service vehicles
-
Industrial facilities and generators
OilWorks ensures you never run out, with bulk DEF delivered directly to your tanks or equipment—fast, clean, and compliant.


Bulk DEF Delivery You Can Count On
We’ve built our reputation in Columbus on dependable fuel delivery—and our DEF service is no exception. Whether you need 55-gallon drums, totes, or full bulk tanker loads, we deliver with speed and precision.
Our DEF delivery services include:
-
Same-day and next-day bulk delivery
-
DEF drums, totes, and direct-to-tank refills
-
ISO-certified, high-purity DEF product
-
Fully compliant closed-loop delivery systems
-
Flexible contracts and wholesale pricing options
We work around your schedule and space, delivering DEF where you need it most—on-site, in-fleet, or in the yard.
Equipment & Storage Options Available
Need the right gear to manage your DEF supply? OilWorks can help. We offer DEF-compatible storage tanks, dispensing systems, and monitoring tools for safe, efficient handling.
Options include:
-
Heated DEF tanks and insulated totes
-
Electronic dispensers with flow meters
-
Closed-system dispensing for contamination prevention
-
Custom setup based on your usage patterns
-
Ongoing monitoring and automatic refill programs
We don’t just drop off fluid—we help you build a smart, scalable DEF solution that grows with your fleet or business.


Why Columbus Customers Choose OilWorks for DEF
With years of experience in fuel and fluid logistics, OilWorks has become the go-to provider for businesses that can’t afford delays or surprises. When you work with us, you get:
-
Locally based support and delivery teams
-
Fast response times and clear communication
-
DEF delivered in accordance with ISO 22241 standards
-
Transparent, wholesale pricing with no hidden fees
-
Long-term reliability from a partner who knows your industry
We’re not just a supplier—we’re a fueling partner who understands the importance of uptime, compliance, and cost control.