Fuel Econ and Hiway Mode

[JTesta1966 at aol.com]

In a message dated 10/10/00 9:45:25 AM Eastern Daylight Time, 
sabatine at epix.net writes:

<<  Exhaust Gas Recirculation is proportionately induced into the Intake 
 charge
      to Reduce Detonation and Oxides of Nitrogen Emission levels. The key is
      Supression of Detonation . Detonation is a great way to trim 15% power
      output , damage cylinder walls , pistons , rings and rod bearings, to 
name
      a few of the problems that are associated. EGR is kin to artificial 
Octane
      in a pollution controlled combustion engine.
      Len
  >>
I never knew that. I was instructed in GM school that EGR's sole purpose was 
to LOWER CC temps below 2500*. At that temp NOx is formed. Not having proper 
EGR can CAUSE ping, but its purpose is NOT ping suppression. 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jim  (FA) Testa                                             TType86 on 
#BuickGN
ASE Master Technician                                buick.fiendish.net:6667
L1 Advanced Engine Performance                    NJ Lic MV Inspector
jtesta1966 at aol.com                           NJ Lic Emission Repair Tech
http://members.aol.com/jtesta1966/buick.htm
Associate Sponsor, Buicks at Bristol (RCA/JTP)
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