The truth about Regular, Plus and Super gasoline.

IDZRVIT · 03-10-2010, 04:22 PM

Good explanation but the myth of the gas mixture "exploding" is just that. The gas mixture actually goes through a controlled burn expanding the gas from the combustion process through heat which pushes the piston downward on the power stroke.

kannibul · 03-10-2010, 04:36 PM

Quote:

Originally Posted by IDZRVIT

Good explanation but the myth of the gas mixture "exploding" is just that. The gas mixture actually goes through a controlled burn expanding the gas from the combustion process through heat which pushes the piston downward on the power stroke.

If the octane isn't high enough for a given compression scenario, it does explode. This is called detonation, and it's heard as "knock"

03-10-2010, 04:22 PM	#1 (permalink)
IDZRVIT A True Z Fanatic Join Date: May 2009 Location: Halifax Posts: 1,659 Drives: '13 CTS-V, '76 Vette Rep Power: 27	Good explanation but the myth of the gas mixture "exploding" is just that. The gas mixture actually goes through a controlled burn expanding the gas from the combustion process through heat which pushes the piston downward on the power stroke. __________________ "America.... still builds rockets!" Vette: 355 cid, 400 rwhp '13 CTS-V Coupe: 6.2L LSA, 556HP

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