Context: Because of the difficulty of moving crude bitumen through pipelines, non-upgraded bitumen is usually diluted with natural-gas condensate in a form called dilbit or with synthetic crude oil, called synbit. However, to meet international competition, much non-upgraded bitumen is now sold as a blend of multiple grades of bitumen, conventional crude oil, synthetic crude oil, and condensate in a standardized benchmark product such as Western Canadian Select. This sour, heavy crude oil blend is designed to have uniform refining characteristics to compete with internationally marketed heavy oils such as Mexican Mayan or Arabian Dubai Crude.

Question: What is done to crude bitumen to promote its movement through pipelines?
Answer: diluted

Question: What is the natural gas condensate used to dilute bitumen?
Answer: dilbit

Question: What is the synthetic crude additive to bitumen called?
Answer: synbit

Question: What is the usually sold standard blend of bitumen and oils named?
Answer: Western Canadian Select

Question: In what uniform use was Western Canadian Select meant to excel?
Answer: refining

Question: Because it's easy to move what through pipelines is non upgraded bitumen is usually diluted?
Answer: Unanswerable

Question: What is upgraded bitumen now sold as to meet international competition?
Answer: Unanswerable

Question: What is non-upgraded bitumen now sold as to meet national competition?
Answer: Unanswerable

Question: The bitter and light crude oil mix is designed to competed with what types of oils?
Answer: Unanswerable

Question: The sour and heavy crude oil mix is designed to competed with what types of benchmarks?
Answer: Unanswerable