EGR questions...

[Ed Lansinger]

An additional effect of EGR is to lower the octane requirement (i.e.
raise the effective octane rating of the fuel/air mixture).  This is
due to the presence of NOx in the exhaust gas.

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Ed Lansinger
General Motors Powertrain
Powertrain Control Center
Premium V Software & Calibration Group
Milford Proving Ground, Milford, MI
elansi01 at mpg.gmpt.gmeds.com  8-341-3049  (810) 684-3049
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