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basjoos · 06-25-2009, 08:41 PM

The FE boost you see when driving when the humidity is high is the equivalent of inert gas injection, since water molecules take the place of some of the oxygen that the engine could have been sucking in if the humidity was low.

06-25-2009, 08:41 PM	#9 (permalink)
basjoos Master EcoModder Join Date: Dec 2007 Location: Upstate SC Posts: 740 Aerocivic - '92 Civic CX Last 3: 70.54 mpg (US) AerocivicLB - '92 Civic CX Team Honda 90 day: 70.97 mpg (US) Thanks: 1 Thanked 147 Times in 77 Posts	The FE boost you see when driving when the humidity is high is the equivalent of inert gas injection, since water molecules take the place of some of the oxygen that the engine could have been sucking in if the humidity was low. __________________ aerocivic.com