Cold-Weather Diesel Explained: Choosing the Right Winter Fuel Blend

❄️ Understanding Winterized Diesel

Your Guide to Cenex® Winter Fuels from Tri-County Co-op

As temperatures drop, using the right winterized diesel fuel is essential to protect your engines, prevent gelling, and keep your equipment or vehicles running all season long. Tri-County Co-op proudly supplies Cenex® premium diesel fuels, specifically engineered to perform in cold weather.
Here’s what you need to know about Cenex winter fuels — and which option is right for you.

1. Why Diesel Struggles in Winter

Diesel naturally contains paraffin wax, which begins to crystallize when temperatures fall. That leads to:
  • 🌫️ Cloudiness (cloud point)
  • 🧊 Thickening or gelling of fuel
  • 🚫 Plugged filters and fuel lines
  • 🚜 Hard starting or complete engine shutdown
That’s why choosing the right winter diesel makes all the difference.

2. Cenex® Winter Fuel Options

Tri-County Co-op offers a range of Cenex® diesel products to match winter temperatures, equipment needs, and performance expectations.

3. Seasonally Enhanced Premium Diesel

During fall and early winter, Cenex distributors (including Tri-County Co-op) provide Seasonally Enhanced Premium Diesel blends.
These transitional fuels often include:
  • Roadmaster XL® or Ruby Fieldmaster®
  • Cold-flow additives
  • Partial blending with Cenex® #1 Diesel
Why it matters:
This fuel ensures reliable starts and flow during fluctuating temperatures.

4. Choosing the Right Cenex® Fuel for Winter

  • 🌡️ Above ~15°F
    • Cenex® Ruby Fieldmaster® or Roadmaster XL® (seasonally enhanced)
    🌡️ 0°F to 15°F
    • Cenex® Wintermaster® OR a #1 / #2 blended premium diesel
    🌡️ Below 0°F
    • Cenex® Wintermaster® + Cenex® #1 Diesel Fuel
    🧊 Extreme cold
    • Straight Cenex® #1 Diesel or a high-ratio #1 blend
    🔄 Unpredictable temperatures
    • Seasonally Enhanced Premium Diesel
    If you’re unsure which blend is right for your equipment or local forecast, our energy team is here to help.

5. Why Choose Tri-County Co-op for Cenex® Winter Fuels

  • Fully authorized Cenex® fuel provider
  • High-quality premium and winter diesel options
  • Knowledge of local weather patterns and seasonal needs
  • Service for farms, fleets, commercial, and residential customers
  • Reliable delivery and on-site fueling
  • Friendly service backed by trusted community values

Contact Us to Prepare for Winter

Have questions about Cenex® winter fuels or want to schedule a delivery?
The Tri-County Co-op Energy Department is here to help you stay running all winter long.

The next generation of Cenex® premium diesel fuels

40% more efficient

At breaking down harmful engine deposits1

Restores up to 4.5% more power

When it matters most2

Restores up to 5% better fuel economy

When every dollar counts2

2.5x more effective

In cleaning up and removing injector deposits and preventing further buildup in dirty equipment1

Months longer

Fuel storage life than typical #2

Up to 75% reduced filter blocking2

Cenex® TOP TIER™ Renewable Fuels

Renewable fuels: ethanol blends

Propane

A clean, efficient energy solution

🔥 Save More with Propane from Tri County Co-op!

Clean • Efficient • Delivered in Bulk

Looking for an affordable, reliable energy source? Propane is a clean-burning fuel ideal for heating, cooking, hot water, and backup power—perfect for rural homes, farms, and small businesses.

💡 Why Choose Propane?

  • Lower emissions than oil or gasoline

  • Highly efficient energy source

  • Works during power outages

  • Safe and versatile—use it indoors and out!

🚚 We Deliver – In Bulk!
As a member of our oil co-op, you get competitive pricing on bulk propane deliveries—straight to your tank, when you need it. No middlemen, no hassle.

👥 Member-Owned, Community-Focused
Your energy dollars stay local, supporting neighbors and building energy independence for our region.


✅ Ready to Make the Switch or Refill?

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Lubricants

Cenex lubricants deliver superior protection and performance for engines and equipment. Formulated with advanced additives, they help reduce wear and extend equipment life.

Tri County Co-op has DEF available at the pump for quick, convenient access. Save time and stay compliant by filling up your diesel equipment or vehicles right here.

Cenex® TOP TIER™ detergent gasoline

Formulated for vehicles, new and old

To keep newer, high-precision engines clean and help older engines perform at their best, regardless of make or model.

Highly recommended

By 7/10 of the top automakers.

Restores engine power

With improved fuel economy, better drivability, optimal injector performance and lower emissions.

Standard in every grade

Of Cenex gasoline across all octanes and you won’t pay more at the pump.

Certified

In four rigorous tests to exceed EPA detergent requirements.

2.5x cleaning power

Versus regular gasoline, with superior additives that remove deposits and clean dirty intake valves and direct injection systems.

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