Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 exptools 1/6/84; site ihuxl.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!hao!hplabs!tektronix!uw-beaver!cornell!vax135!houxm!ihnp4!ihuxl!seifert From: seifert@ihuxl.UUCP (D.A. Seifert) Newsgroups: net.auto Subject: Re: Graphite in Mobil 1 oil Message-ID: <1396@ihuxl.UUCP> Date: Thu, 11-Oct-84 20:31:40 EDT Article-I.D.: ihuxl.1396 Posted: Thu Oct 11 20:31:40 1984 Date-Received: Sat, 13-Oct-84 04:52:05 EDT References: <244@aesat.UUCP> Organization: AT&T Bell Labs, Naperville, IL Lines: 23 > purpose, and whether or not [graphite] is harmful for the engine? The problem I've heard of with Arco graphite is that it clogs up the oil passages. Eventually you get parts of the engine being starved for oil, and... > Also, if synthetic oils are so wonderful, why do most > manufacturers warn that they will not stand behind their > warantees if you put synthethic oil into your engine? Easy. They are VERY conservative. Petrol-based oil is well-known. They KNOW how it works, they know how their engines will react to it. Synthetics are a relative new-comer. Their properties aren't so well-known. They may be better, they may be worse. Maybe they're better (than conventional oils) for some engines but worse for others. They haven't had time to test them sufficiently to trust them. Sticking with conventional oils is safe, so that's what they do. -- _____ "Money. It's a gas. Just keep your hands /_____\ off of *my* stack!" - Pink Floyd /_______\ |___| Snoopy ____|___|_____ ihnp4!ihuxl!seifert