My understanding from my favorite oil industry executive is that
"all" major brands are formulated to meet the newest API standard
which is SM. That is the standard that took all those goodies out of the oil.
Want a low cost oil that is still made to the previous standard?
Kendall GT-1 High Performance motor oil, available from your local
parts pimp but not from the Walmarts of the world. It's dirt cheap
compared to the Red Lines, etc. It meets API SL, SJ, and SH, but not
SM. I used it last season in a newly built engine and after running a
whole season on the same sump-full, disassembly showed the parts
still looking like new.
You can get it in straight single-weights or in dual spec. I use
20W-50. I pay $28 a case. All circle track racers in my area use it.
Take a look at Amsoil's site,
http://mcgeerf.tripod.com/americansyntheticoil/id17.html
and look at the zinc content of all the oils. Kendall is the highest.
Now, the caveat: I don't know when the Amsoil data was prepared --
wen I check the Kendall site and look at GT1, it says it meets the SM
spec. But sitting on my desk is a jug of Kendall GT-1 High Prformance
oil and the label says SL, SJ, SH. i hope they haven't changed it
over the winter.
>From: "BOB KRAMER" <rkramer3@austin.rr.com>
>To: "FOT List" <fot@autox.team.net>
>Subject: OIL IS KILLING OUR CARS
>Date: Wed, 6 Dec 2006 23:04:57 -0600
>
>
>This was posted on the some British Car web forums and based on the feedback
>it is not widely known apparently -----
>
>OIL IS KILLING OUR CARS!!!!!
>
>By: Keith Ansell, Foreign Parts Positively, Inc.
>
>About a year ago I read about the reduction of zinc dithiophosphate (ZDDP)
>in the oils supplied with API approval that could affect sliding and high
>pressure (EP) friction in our cars. The reduction of these chemicals in
>supplied oil was based on the fact that zinc, manganese and/or phosphates
>reduce the effectiveness and eventually damage catalytic converters and
>introduce minute amounts of pollutants into our atmosphere.
................snip.......................
>Bob Kramer
>rkramer3@austin.rr.com
>
>
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uncle jack
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