"Bernd D. Ratsch" <bernd@dodgetrucks.org> wrote:
> Ah yes...thanks to that modern marvel called a MAP sensor - it adjusts for
> different elevations/pressures on the fly. No real need for swapping fuels
> unless you're that picky.
The reason you can get away with lower octane at higher elevations
is the decreased barometric pressure. The altitude lowers your
compression and the knock resistance of a higher octane isn't needed.
Basically, its an "inverse supercharger", complements of mother
nature. :-)
--
-Jon-
.- Jon Steiger -- jon@dakota-truck.net or jon@jonsteiger.com -.
| '96 Kolb Firefly, '96 Suzuki Intruder, Miscellaneous Mopars |
`-------------------------------- http://www.jonsteiger.com --'
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