10/20/2026
As temperatures drop, there's an important difference fleet operators and drivers should keep in mind: Canadian and U.S. diesel fuels aren't always formulated for the same winter conditions. ❄️
Canadian diesel is seasonally blended to perform in colder temperatures, particularly in the Prairies and Northern regions. In the U.S., winterization varies by region, meaning diesel purchased in warmer states may not be suitable for Canadian winter conditions.
For cross-border fleets, this can lead to fuel gelling, unexpected downtime and costly repairs.
A few reminders for your drivers and maintenance teams:
✅ Fuel up after crossing the border. Filling up with Canadian winter-grade diesel can help dilute fuel purchased in warmer regions and reduce the risk of gelling.
✅ Understand fuel additives. Educate drivers on the benefits and risks of fuel additives, and always follow manufacturer recommendations to avoid potential fuel system damage.
✅ Plan ahead for changing temperatures. Consider where a truck is travelling, not just where it's being fuelled. Diesel that performs well in California may not hold up during a Canadian cold snap.
Thawing a gelled fuel tank and fuel system can be an expensive and time-consuming process. A little preparation can go a long way toward preventing avoidable downtime.
Keep your fleet moving this winter by making fuel management part of your cold-weather maintenance plan.
