Keep your diesel equipment running at peak efficiency

Take control of corrosion, mechanical issues, and premature aging of equipment

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How much can you save with Harness?

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Harness™ Premium Diesel Fuel protects your equipment to ensure you stay on the road or in the field for the long haul

Deliver engine performance, power, and protection from the first tank

It's formulated with a powerful, multi-functional additive system

Restore lost horsepower 100% and protect against additional carbon deposit build-up

Let the multi-functional detergent package clean your entire fuel system

Emulsify moisture, safely passing it through the fuel system

Complete moisture control formula limits the damage left behind from moisture

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"I wanted to share an interesting experience I had. I am a former truck driver and farmer and I've been around diesel fuel all my life. Recently, I heard a radio ad about Harness Premium Diesel Fuel offered by Frenchman Valley Coop and it stuck in my mind as something I wanted to try. Shortly thereafter, my wife and I went on a trip to McCook, NE and had the opportunity to try Harness. I drive a 1995 Ford Powerstroke with the usual high miles and, of course, lots of smoke. Pulling my camper, I typically get about 10-11 miles per gallon, plus I treat my diesel with a store-bought additive. After putting Harness in my tank, I noticed I had an increase in power, less smoke - and to top everything off - I got an average of 16-18 miles per gallon on that trip. Best part is I didn't have to treat Harness with any other additive. I am a true believer in this product and I had to share my story."

- Leroy Jones, Cheyenne, WY

"I can honestly say that I’m pleasantly surprised by the increase in MPG that I have experienced since introducing the Harness fuel to my vehicle."

- Doug Dean, Imperial, NE

How does Harness Premium Diesel Fuel compare?

Premium Diesel Fuel Requirements

Harness

6.8L Heavy Duty Engine Detergency Test – Clean Up*

6.8L Heavy Duty Engine Detergency Test – Keep Clean*

DW10B Light Duty Nozzle Coking Test

DW10C/IDID Light Duty Merit Scoring 10 out of 10 – Keep Clean

Complete Moisture Control

Cetane Improvers

Lubricity

Restores Lost Horsepower 100%

*Harness™ Premium Diesel Fuel results based on tests performed with a John Deere® Heavy Duty engine.

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