http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=7032644 ?
All of our vans are 1991 or older. The web blurb says that the oil does not meet zinc standards required for vehicles 1993 and newer. But of course, our vans have catalytic converters and oxygen sensors. So, what gives?
mcneely
---- Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:
> I have never seen Castrol GTX in 10 or 15-50. The norm is 20w-50. This
> is an oil for the modified and collector car crowd. Very good stuff
> and will hold higher pressure than a 15w-40 Diesel oil.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> Behalf Of Karl Wolz
> Sent: Saturday, July 30, 2011 2:28 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Oil Pressure observation.
>
> That seemed to be something of a consensus after the discussion of
> zinc additives, or a lack thereof, a month or so ago. I've been using
> Castrol GTX 10w/50 (might be 15, thinking about it), and am
> considering changing when I next change oil before I leave Phx for Seattle in early September.
>
> I'm looking forward to someone taking me by the hand and saying, "Do
> it this way" (and being correct about it, of course).
>
> Karl Wolz
>
>
>
> |-----Original Message-----
> |From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]
> |On Behalf Of Dave Mcneely
> |Sent: Saturday, July 30, 2011 9:09 AM
> |To: vanagon@GERRY.VANAGON.COM
> |Subject: Re: Oil Pressure observation.
> |
> |So, are folks recommending that we run a diesel oil in our vanagons?
> |mcneely
> |
> |---- Don Hanson <dhanson928@GMAIL.COM> wrote:
> |> I recently changed the oil in my 93 Jetta powered 84 5sp
> |vanagon. I
> |> recalled someone suggesting diesel-"branded" oil so I put
> |some of that
> |> in this time.
> |> I was running 10-40 Mobil labeled SM/CF and I switched to
> |Delo 15/40
> |> labeled CJ-4/SM. It has been in the high 80s to 100f here in the
> |> Eastern Columbia River Gorge area of the Pacific Northwest. My old
> |> oil had maybe 3000 miles in it.
> |>
> |> I noticed about 10 lbs/psi (+/-) increase in my oil
> |pressure, maybe
> |> 15 when my oil temperature gets up to it's higher operating
> |> temperatures. My vehicle is now operating at....
> |> interstate/highway sustained speeds...210f Oil temperature with oil
> |> pressure of
> |65psi at
> |> 3700rpm (60mph) With the other oil, I was seeing about 55psi of
> |> oil pressure at the same oil temperature and rpms.. At idle, with
> |> the temperature up there, both oils give me 20psi oil pressure.
> |>
> |> Posting this for anyone wanting to have the numbers to
> |check against
> |> their own and to mention the increase in OP with the change in oils.
> |
> |--
> |David McNeely
> |-----
> |No virus found in this message.
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> |07/29/11
--
David McNeely