system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can one pipeline deliver different brands and octanes of gasoline? How do they separate them at the destination?
gpt
All of these folks saying pipelines only deliver crude oil are incorrect. While that is the most common scenario there are some large pipelines that transport gasoline and diesel refined products along with typical crudes. These pipelines are batched systems and the operators account for an interface mix of the products (transmix). This is a sacrifical cut of a lower quality product to maintain the quality of the higher value product. The batch train lineup in the pipeline is carefully scheduled to avoid contamination.