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From: mrl@drutx.UUCP (LongoMR)
Newsgroups: net.auto
Subject: Re: Oil changes
Message-ID: <501@drutx.UUCP>
Date: Thu, 6-Feb-86 14:00:45 EST
Article-I.D.: drutx.501
Posted: Thu Feb  6 14:00:45 1986
Date-Received: Fri, 7-Feb-86 21:33:29 EST
References: <395@ncr-sd.UUCP> <465@tekig5.UUCP> <529@mhuxl.UUCP> <473@tekig5.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
Lines: 24

A long time ago I made a couple of observations . They were:
	1) With a tight engine (i.e. no leaks) my oil level would
	   remain full right up to about 3000 miles after a change.
	   Between 3000 and 3500 miles the oil level would drop
	   a quart. This told me that at about 3000 miles something
	   was happening to my oil and probably should be replaced.

	2) Oil filters are about $2.50 when you catch them on sale. To
	   save $5.00/year it didn't seem reasonable to change the
	   oil and leave the dirt every other oil change.

	3) Cost of an oil change is about $7.50 w/5 quarts of oil and
	   a new filter (on sale, which oil and filters always are!)
	   It didn't (and still doesn't) seem reasonable to mess
	   around with synthetics when petroleum based lubricants
	   are proven to protect an engine and a change of oil
	   and filter takes about 20 minutes 4 times a year (I
	   drive about the average of 12,000 miles/year)

--Just bein' practical--
-- 
			Mark R. Longo
			ihnp4!drutx!mrl
			(303) 538-4900