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From: page@ucla-cs.UUCP
Newsgroups: net.auto
Subject: octane
Message-ID: <4171@ucla-cs.ARPA>
Date: Mon, 4-Mar-85 12:38:38 EST
Article-I.D.: ucla-cs.4171
Posted: Mon Mar  4 12:38:38 1985
Date-Received: Sat, 9-Mar-85 10:40:33 EST
Organization: UCLA Computer Science Department
Lines: 9

My new (1984) Subaru GL wagon asks (in its manual) that it be given
gas of no less than 90 octane or "serious engine damage may result".
Before reading this part of the manual, I had bought a tank or two of
unleaded (87 octane) and the car ran ok (pinging only on hard
acceleration).  Since then I have bought premium unleaded (92 or 93 octane)
and sometimes the unleaded from Union 76 which is 89.  Question.  What
will happen to my car if I switch back to unleaded ($1.07/gal.) instead of
super ($1.27)?  Also, is 89 octane ($1.18) close enough to 90 not
to matter?