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How an Engine Lubrication System Works


Author's Note

Like lots of automotive journalists, I thought I knew exactly how the lubrication system worked. But when I had to actually write it down, listing each part and how the oil moved through the engine, I realized I only had the vaguest idea of how it all went down. I'm also guilty of talking about wet sump and dry sump systems as if I had a clue. Now that I do have a clue, thanks to my research for this piece, I'll be even more insufferable.

The one thing I did know for sure was that bit about two-stroke engines and mixing the oil with the gasoline. I'm the proud owner of a two-stroke 50-cc scooter with an injection system, so I don't have to premix. Now if I could only find a sidecar for the dog...

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Sources

  • Bessel Motorsports. "Wet Sump vs. Dry Sump." Strokerkits.com. Nov. 17, 2008. (April 25, 2012) http://www.strokerkits.com/index.php?option=com_content&view=article&id=80
  • CDX Online Textbook. "Engines: Engine Lubrication" Cdxetextbook.com. (April 18, 2012) http://www.cdxetextbook.com/engines/lube/topic.html
  • DriverSide.com. "Glossary of Auto Terms." (April 18, 2012) http://www.driverside.com/car-dictionary/lube-job-8-147
  • Engine Builder. "Wet Sump vs. Dry Sump Oiling Systems." Enginebuildermag.com. Jan. 13, 2009. (April 24, 2012) http://www.enginebuildermag.com/Article/38721/wet_sump_vs_dry_sump_oiling_systems.aspx
  • Wright, Lance. "Automotive Engine Lubrication Basics." Auto-repair-help.com. (April 18, 2012) http://www.auto-repair-help.com/automotive_maintenance/engine_lubrication_basics.php

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