This came through the Chevy truck list last week:
http://www.unofficialbmw.com/all/misc/all_oilfaq.html
Pretty good explanation of oil properties - makes a good case for
synthetics.
Dave Camp
----- Original Message -----
From "Peter C." <nosimport at mailbag.com>
To: <mgraziano@mindspring.com>; "WFO Herb" <froggi@cdsnet.net>
Cc: "Spridgeteers" <spridgets@autox.team.net>
Sent: Wednesday, February 21, 2001 9:37 AM
Subject: Re: Red Line Oil - Proven to Out-Perform
> At 08:04 AM 2/21/2001, mgraziano@mindspring.com wrote:
> >according to this, the worst of the synthetics is the 5W50. Exactly the
> >one I put in my car three weeks ago.
> >
> >Castrol Syntec 5W50. Any thoughts?
> >
> >Mike
> -----
> I was taught that the greater the spread in VI numbers, the more additives
> and likely the lesser quality, given a choice. I was told that the lower
> number is at best the starting grade, the rest is accomplished with
> additives. The advent of synthetics might break that rule, however. Also
be
> aware that the reason for low VI numbers being recommended comes from CAFE
> ratings rather than optimal lubrication.
> Peter C (former Castrol distributor)
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