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[Shop-talk] Oil analysis - Blackstone

Subject: [Shop-talk] Oil analysis - Blackstone
From: strovato at optonline.net (Steven Trovato)
Date: Sun, 26 Jun 2011 19:20:43 -0400
References: <4E053F9D.4030002@xxiii.com> <4E0611D1.3050703@tx.rr.com> <E32E54EC-F383-4871-83EF-56F4C605EF77@gmail.com> <4E069550.2050902@tx.rr.com> <4E06B9C2.1070102@milleredp.com> <4E077958.7040306@frontier.com> <4E07B6D6.3000508@comcast.net>
Castrol made a 20W-50 "for use in classic cars"
with ZDDP, but they have discontinued it.  Now
they have a 5W-50 that they recommend instead.

Here's the statement from their FAQ:

What is happening to Castrol SYNTEC 20W-50?
Castrol SYNTEC 20W-50 classic car formulation is being replaced by Castrol
with SYNTEC Power Technology 5W-50 viscosity grade. The 5W-50 grade
will also be specially formulated for classic car use and will adopt the
20W-50
claims  designed for use in classic cars. The 5W-50 formulation will contain
more zinc additives than the 20W-50 and will also enhance start up ability in
cold temperatures as well as enable better fuel economy*
Compared to SAE 20W-50.

Here's the link:

http://www.castrol.com/liveassets/bp_internet/castrol/castrol_usa/STAGING/loc
al_assets/downloads/f/Castrol_EDGE_FAQ.pdf

-Steve Trovato
strovato at optonline.net

At 06:46 PM 6/26/2011, Bob Spidell wrote:
>   Castrol may still have some ZDDP in the
> 20W-50 oil, but the oil companies have been
> kinda coy about revealing what's really in their stuff.

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