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Re: [GMCnet] Blackstone Labs and ZDDP oils [message #109395 is a reply to message #109302] Wed, 22 December 2010 08:16 Go to previous messageGo to previous message
Steven Ferguson is currently offline  Steven Ferguson   United States
Messages: 3447
Registered: May 2006
Karma:
Senior Member
Steve,
My stock of syn oil is running out and as it does, I have been switching
back to non-syn lubricants. Delo is an excellent choice for your GMC. I
changed oil in our Civic yesterday and zipped over to O'Reilly's for some
5W20 and checked out the price of M1. Man, that stuff has gone past the
point where I'm going to continue using it.
I have to put a lot of faith in a person who has spent his entire
professional career analyzing oil. He is an expert and has the credentials
to prove it.



On Tue, Dec 21, 2010 at 1:07 PM, Stephen Stolley <sstolley9957@yahoo.com>wrote:

>
>
> Some time back Steve Ferguson posted on the forum about the Jim Stark
> presentation and GMCWS in Vegas in which it was suggested that modern oils
> without ZDDP are safe to use in the GMC 455.
>
> Given the hassles with tracking down oils that still contain ZDDP or paying
> for a ZDDP additive, are those who attended convinced enough to make the
> switch to modern oil?
>
> I ask because it's time for an oil change and my Costco no longer stocks
> Mobil 1 15W-50, but does have 3 x 1 gallon Delo 400 LE 15W-40 for $39.
> While the Delo box has API CJ-4 in big bold letters, it's also approved for
> API CI-4 PLUS.
>
> What's the consensus?
> --
> Steve Stolley
> 76 Glenbrook
> Washington, Utah
> _______________________________________________
> GMCnet mailing list
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>



--
Steve Ferguson
Sierra Vista, AZ
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