Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 beta 3/9/83; site pertec.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!hao!hplabs!pesnta!pertec!kitten From: kitten@pertec.UUCP (karen hettinger) Newsgroups: net.auto Subject: Mobil One, graphite-based oils Message-ID: <238@pertec.UUCP> Date: Thu, 4-Oct-84 21:35:59 EDT Article-I.D.: pertec.238 Posted: Thu Oct 4 21:35:59 1984 Date-Received: Sat, 6-Oct-84 02:16:51 EDT Organization: Pertec Computer Corp., Irvine, CA Lines: 23 I don't claim to be any kind of expert on oils, but I know of someone who had bad experience with Mobil One. A guy I knew who worked at Sacramento Racing Equipment (the ORIGINAL Super Shop) said he had used it in three or four different cars. These cars were NOT used for racing of any kind, he was mostly a tinkerer. He found upon inspection after using the oil for various lengths of time in the different cars that ALL suffered extreme wear damage, caused by the graphite in the oil. (P.S. If I recall correctly, all the cars saw at least one oil change.) As I understand it from memeory of the Mobil One commercials, the graphite flakes are supposed to form a layer between metal parts...say the lower piston and the cylinder wall. What had happened instead is that the graphite *caused* friction between the metal parts, and since I understand graphite to be a somewhat hard compound, it caused scratches in the metal. All I can figure is that 1) the graphite flakes did not lay flat between the metal parts as intended, or 2) the graphite was not in a flake form, and acted as would metal fragments suspended in the oil. Does anyone more knowledgable have any comments? -- kitten~ {ucbvax!unisoft | scgvaxd | trwrb | felix}!pertec!kitten