Re: Octane vs. MPG

["Michael Barrett" <mbarrett635@xxxxxxxxxxx>]

>Uh, to be clear, high octane gas render more energy. Ignition of a >highly 
>compressed air-gas mixture results in more energy than the >ignition of a 
>less compressed mixture.

Uh, what's clear about your statement, other than it is incorrect?

Octane enhancers are added to fuel to retard detonation -- ergo, less 
energy.  In the same engine, the higher the octane rating of the fuel, the 
fewer BTU's per unit volume of fuel.

Octane does nothing to alter the compression of the air/fuel mixture, so I 
don't know what you're talking about there.

Mike Barrett
BMW CCA 111632
93 850Ci
88 635CSi




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