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22. What does Ratio mean?
Podcast No. 22 Is Ratio a measurement or a quantity? Or something else? Learn about it here.
24. The difference between a 2 stroke and 4 stroke engine
Podcast No.24 "What is the difference between a 2 stroke and 4 stroke engine?"
What is oil for?
A lot of people are wondering what oil is really for? Find out here.