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FYI: Re: Consumer Reports on Oil (kinda long) (fwd)

According to the email below, it seems that we can change our motor oil 
every 7,500 miles.
Any comments???? is it safe to do it???


---------- Forwarded message ----------
Date: Sat, 13 Jul 1996 10:42:08 -0400
From: George Economou <economou@tiac.net>
To: kawo@www.internetizen.com
Subject: FYI: Re: Consumer Reports on Oil (kinda long)

>X-Authentication-Warning: coimbra.ans.net: majordom set sender to
owner-quattro using -f
>From: gregsj@mail.imm.com
>Date: Sun, 23 Jun 1996 10:17:28 -0800
>Subject: Consumer Reports on Oil (kinda long)
>To: quattro@coimbra.ans.net
>Sender: owner-quattro@coimbra.ans.net
>Fellow Audians: for what it's worth, the following oil report appeared 
>in our Saturday paper.
>Report Says Motor Oil is Motor Oil. Test by consumer watchdog reveal 
>only minor differences.
>AP--New York--Premium Motor oil and fancy additives are nothing more 
>than slick sales Consumer Reports says. The consumer watchdog tested 
>20 types of motor oils under the most grueling conditions--in a fleet 
>of 75 NYC taxi cabs--for nearly two years. The results: there is 
>little difference among brands as long as the container carries the 
>starburst symbol--a standard set by the American Petroleum Institute 
>for additives needed to keep modern engines running. The study also 
>For normal service, changing a car's oil every 7,500 miles, or at the 
>automaker's suggested interval is sufficient. Although some mechanics 
>recommend oil changes every 3,000 miles, it only wastes money and adds 
>to the nation's oil disposal problems. Consumer Reports cautions, 
>however that no oil, synthetic or conventional, should be used for 
>more than 7,500 miles or the maximum interval recommended by the 
>Expensive synthetic oils worked no better than conventional motor oil 
>in the taxis, which drove 4.5 million miles in stop-and-go traffic. 
>But synthetic oils may be worthwhile for cars in extreme driving 
>Additives such as Slick 50, STP Engine Treatment and STP Oil Treatment 
>failed to show a significant reduction in friction and engine wear 
>compared with engines using the same oil without the additives. 
>Consumer Reports said additives are unnecessary as long as the oil 
>used meets the API standard
>When using a quick-lube center, tell the mechanic what grade of oil 
>the owners manual recommends. Consumer Reports found that unless told, 
>the quick-lube shops failed to use the proper grade about half the 
>In addition to the tests in the Chevrolet Caprice taxicabs, the survey 
>analyzed the characteristics of each oil in determining its findings. 
>Motor oil should be thin enough to flow easily when the engine is cold 
>and remain thick enough to provide protection when the engine is warm.