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For businesses that depend on diesel to run fleets, power construction equipment, or keep backup generators ready, fuel reliability is non-negotiable. In winter, cold weather creates unique risks that can lead to downtime, equipment damage, and higher operating costs. By following best practices for safe fuel storage this winter, commercial fuel users can protect their tanks, maintain compliance, and ensure operations run smoothly all season.
As temperatures drop, diesel begins forming wax crystals that thicken the diesel, preventing it from flowing properly through the fuel system filters and lines and potentially immobilizing engines until the fuel is treated or warmed. This is known as fuel gelling. For fleets and heavy machinery, this means stalled equipment, delayed schedules, and costly service calls.
While condensation is less likely to form during winter, any water that has built up in a storage tank over time can freeze as temperatures drop. Ice formation can block fuel lines, filters, and pumps—causing operational issues and costly downtime. Taking actions to remove any excess water from the tank can help mitigate these future issues when winter temperatures arrive.
Businesses that store diesel for months at a time, such as for backup generators, face risks of oxidation and sludge buildup. Industry data shows diesel has a typical shelf life of just 6 to 12 months without treatment, and its quality continues to degrade the longer it sits in the tank. Over time, this aging fuel can lose stability and form deposits that clog filters and reduce engine performance. Poor-quality fuel compromises performance when you need it most, which is why it is important to get your fuel close to the time you’ll use it and from a trusted supplier who moves their fuel quickly.
With proper storage practices—including maintaining a cool environment, minimizing exposure to air and moisture, and using appropriate additives—diesel fuel can remain viable for up to 18 to 24 months.
When selecting a commercial fuel tank, choosing a tank size that can comfortably hold your seasonal fuel supply can help provide enough reserve to outlast severe weather or delivery delays. Opting for a larger-capacity tank ensures consistent operation and peace of mind when conditions turn unpredictable.
Placing tanks in sheltered environment protects against extreme cold and snow buildup. Positioning tanks away from high-traffic areas also helps avoid accidental damage from heavy equipment, enduring snow plowing, or accidents caused by sliding on the ice
Businesses are often subject to EPA and state-level fuel storage regulations. Secondary containment protects against spills, helps you avoid fines, and demonstrates a commitment to environmental safety.
Minimizing airspace reduces condensation and the risk of water contamination in large tanks. Keeping your tank full helps ensure you have the fuel you need at any moment – especially when inclement weather is on its way – while also keeping your tank in good condition.
Anti-gel and stabilizer additives help fleets avoid downtime by keeping diesel flowing freely even in extreme cold. Tanks that are inside buildings, or that are well sheltered from the elements, may not need fuel additives.
Schedule inspections for leaks, sludge buildup, and water accumulation. Regular tank cleaning and water draining are critical for preventing fuel contamination –– is recommended to do this just before the winter season in order to get ahead of any problems that may be harder to fix in cold weather.
For operations in harsh winter climates, tank heaters and insulation blankets ensure your diesel stays within an optimal temperature range.
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For businesses, one mistake can put multiple trucks, machines, or generators out of service—making safe handling procedures essential.
Stay alert for signs that your commercial fuel supply is compromised:
Even with best practices, winter weather is unpredictable. Businesses should keep:
Having a contingency plan ensures your operation stays productive even in extreme cold.
For commercial diesel users, winter fuel storage safety is more than good practice—it’s a safeguard for uptime, compliance, and cost control. Protecting your diesel tanks from cold weather damage reduces the risk of downtime, prevents regulatory issues, and keeps your business moving forward. With fuel inventories tighter due to cold weather driving up demand, the costs of neglecting winter fuel safety have never been higher. Partnering with professional fuel management services can help ensure your fuel supply stays reliable all winter long.
Don’t leave your diesel supply to chance this winter. Shipley Energy offers expert fuel management services, including routine tank inspections, fuel delivery, and winterization solutions designed to prevent gelling, contamination, and downtime. With our team on your side, you can keep your tanks full, your fuel flowing, and your operations running smoothly all season long. Choose Shipley Energy to protect your equipment, reduce risk, and ensure your business stays powered no matter how cold it gets.
