Season 5 Episodes20
Cast2

Rupert Degas

Robert Llewellyn
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Ranked #13 of 20 in Season 5•−0.1 vs season avg
How gasoline is delivered to the pumps; the making of Swiss Army knives.

Rupert Degas

Robert Llewellyn
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"Refine Crude Oil, Swiss Army Knife" is episode 15 of How Do They Do It? season 5. It scored 7.2/10 from 9 votes, ranking #13 of 20 episodes this season (season average 7.3). It aired on March 25, 2008.