Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site ucla-cs.ARPA Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!tektronix!hplabs!sdcrdcf!trwrb!trwrba!cepu!ucla-cs!page 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?