[V8] Gasoline

[Michele_Deltergo at KeyBank.com]

This seems counter intuitive.  Knock should be most pronounced under load,
most severe under sever load like firm acceration and star stop.  Highway
driving is the opposite with very light loads etc.  I would think regular
for HWY would be fine, from my experience it is.

From: NicolCS at aol.com
Subject: Re: [V8] Gasoline


Regular fuel is probably OK for "in town" use however you might not
actually
save any money.  The knock sensor will cause the ECM to retard the timing.

Power and fuel economy will go down.  The retarded spark will also cause
higher
EGT so I don't recommend highway driving on regular - you may burn an
exhast
valve due to the retarded timing.  The ECM may set a code if it maxes out
the
timing retard and spark-knock continues. (Code 2141).  I had a premium fuel

Astro van that I ran on regular in town and premium on the highway and it
was
still happy at 150k.  If you hear ANY spark-knock, that's destructive and
you
either have an inop KS or the octane is too low to be workable. I wouldn't
recommend more than 10 minutes at highway speeds and do not drive when
knocking is
present.  Check your fuel economy.  If it's down by 20% there's no point in

buying fuel that's 20% cheaper.
Craig Nicol



*******************************************************************************
This communication may contain privileged and/or confidential information. It
is intended solely for the use of the addressee. If you are not the intended
recipient, you are strictly prohibited from disclosing, copying, distributing
or using any of this information. If you received this communication in error,
please contact the sender immediately and destroy the material in its entirety,
whether electronic or hard copy. This communication may contain nonpublic personal
information about consumers subject to the restrictions of the 
Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose
such information for any purpose other than to provide the services for which
you are receiving the information.

127 Public Square, Cleveland, OH 44114
*******************************************************************************


If you prefer not to receive future e-mail offers for products or services from
Key send an e-mail to DNERequests at key.com with 'No Promotional E-mails' in the
SUBJECT line.