What happens to diesel fuel after it leaves the refinery?

When diesel fuel leaves the refinery, it is often subject to oxidation. This process occurs when the fuel is exposed to oxygen over time, leading to chemical reactions that can produce various byproducts. These byproducts may include sediments, gums, and other compounds that can affect the quality and performance of the fuel.

The formation of sediments and gums is significant as it can lead to issues within fuel systems, including clogging filters and injectors, as well as contributing to engine malfunctions if not properly managed. Understanding this process is crucial for maintaining diesel fuel quality, ensuring proper storage, and implementing measures to preserve fuel integrity.

In contrast, the other options do not accurately describe the typical consequences of diesel fuel post-refinery. While diesel fuel can be stored properly to minimize these effects, the natural tendency when exposed to oxygen is indeed to oxidize and form unwanted substances.