We know a thing or two about protecting diesel engines and the impact of quality products on machines. FS retailers own and operate over 5,000 pieces of equipment. Uptime and low cost of ownership is just as important to us as it is you in your operation. To properly protect your diesel engine, decrease downtime, and optimize your return on investment, you need field-proven performance.
Our Suprex Gold ESP diesel engine oil, Dieselex Gold diesel fuel, and FS Extended Life OAT Antifreeze combined with a quality Used Oil Analysis program will certainly set you up for success.


Diesel Engine Oil
Suprex Gold ESP SAE 15W-40 and SAE 10W-30 has the field-proven technology your equipment deserves.
- Industry-leading shear stability maintains viscosity in support of extended drain intervals.
- We have field-proven results and a million mile engine tear down.
- We blend it, we back it, and we have the data to prove it.
Diesel Fuel
Dieselex Gold diesel fuel provides a unique combination of performance and benefits.
- Our patented chemistry provides multi-level protection for fuel storage and equipment.
- Our unique additive package contains chemistries to improve cetane levels for quicker, smoother starts. Detergency cleans up and maintains clean combustion components and much more.
Organic Acid Technology Coolant/Antifreeze
FS Extended Life OAT Coolant/Antifreeze optimizes inventory, improves performance, and takes the confusion out of coolants. Organic Acid Technology
- 1,000,000 miles / 20,000 hours of technology protection is there if you need it!
- Organic Acid Technology (OAT) inhibitors are the preference of the majority of today’s original equipment manufacturers (OEMs). They eliminate the need to add SCAs or hassle with SCA maintenance.
Used Oil Analysis Program
A well-executed oil analysis program provides cost savings by reducing catastrophic engine failure, production loss, and unplanned downtime. It also decreases repair costs and eliminates unnecessary oil changes.
Through regular and accurate sampling, historical data accumulated on equipment makes used oil analysis a powerful predictive maintenance tool.

The FS Energy Solution
We gather an understanding of your business, maintenance philosophy, and challenges to create an energy program to meet your needs. Talk to your local FS Energy Specialist and let’s see how we may be able to help meet your maintenance goals.
Additional solutions include gear oil, tractor hydraulic fluid, hydraulic fluid, transmission fluid, grease and DEF.