Several options exist to prevent freeze-up:
* Winter-grade diesel: Fuel stations typically sell winter-grade diesel during cold months. This fuel is formulated with additives to lower the cloud point and pour point (the temperature at which the fuel becomes too viscous to flow). The exact specifications vary by region and the severity of the expected winter weather. Check your local fuel station for the appropriate blend.
* #1 diesel: This is a lighter fuel designed for colder climates and often has a lower cloud point than #2 diesel. However, it may not be available everywhere.
* Additives: Fuel additives designed to lower the cloud point and improve cold-weather performance can be added to regular diesel fuel. These are widely available at auto parts stores and fuel stations. Always follow the manufacturer's instructions carefully. Some additives also help with lubricity, improving engine performance.
Crucially, you need to know the expected low temperatures in your area. The appropriate fuel choice depends heavily on this. Using fuel with a cloud point higher than the expected temperature is a recipe for problems. Consult your vehicle's owner's manual for recommendations and fuel specifications. It's always better to err on the side of caution and choose a fuel with a significantly lower cloud point than the anticipated lowest temperature.
