All right everyone - I'll be the first to admit it I was wayyyyyy off on the
subject of air density/fuel mixture. Major brain fade.
For the record, air density decreases when:
Air temperature increases
Altitude increases
humidity increases
-or-
barometric pressure decreases.
RE Lead: I was not aware of the effect of lead increasing octane. I am a
little younger than many of the cars we drive, and definitely wasn't around
for "Ethyl" gas. Thanks for the education. I stand by the rest of my
comments on octane ratings and detonation, however.
Best Regards,
MGBChris@aol.com
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