What is Otto Cycle? This topic contains 1 reply, has 2 voices, and was last updated by Surjeet Sankararaj 3 years, 6 months ago. Author Posts June 10, 2013 at 4:46 pm #2451 KingParticipant Points: 96 What is Otto Cycle? Where is it used? June 10, 2013 at 6:10 pm #2469 Surjeet SankararajKeymaster Points: 627 Otto cycle is a gas power cycle used in modern petrol engine vehicles. Take a look at this article for better understanding: http://mechteacher.com/otto-cycle/ Author Posts Tagged: otto cycle You must be logged in to reply to this topic.