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Which is more fuel efficient between diesel and petrol cars? - Quora
Will interference engines turn over with no problem by hand if it's off timing? - Quora
What type of engines do modern small aircrafts typically have, and what is the reason for this (e.g. Cessna 172)? - Quora
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What are the advantages and disadvantages of opposed piston engines? - Quora
What are the applications of radial and opposed piston engines? - Quora
What is the stroke of an engine cylinder? - Quora