In extreme cold, what happens to fuel?

In extreme cold, fuel can freeze or thicken due to low temperatures that affect its viscosity. When temperatures drop significantly, certain components within the fuel can start to solidify or gel, which can severely impact the fuel's ability to flow freely. This thickening can lead to blockages in fuel lines and filters, making it difficult for the snowmobile engine to draw fuel for combustion. It's important to consider the type of fuel used, as some formulations are more resistant to cold weather than others. Thus, understanding how temperature affects fuel characteristics is essential for maintaining optimal performance of snowmobiles in frigid conditions.