[Mgs] Oil Additive

[Chris Attias]

I'll confess that I haven't been out to buy oil for about a year. I went
out this morning to a couple of nearby stores, and sure enough, they had
Valvoline VR1 and a couple other brands that were clearly labeled "High
Zinc" or mentioned ZDDP on the label. It looks like a lot of oil companies
are taking the old car/classics/hot rod market seriously. Valvoline
conventional was the least expensive, at under $7.00/qt.

As a side note, I've been using conventional oil because my experience with
old seals and synthetic oil hasn't been good. An oil company rep told me
that in their experience, synthetics have an improved detergent effect that
points up wear in old seals that's been masked by a buildup of
contaminants. It's a theory...

Back to some of the earlier discussions...Correct me if I'm wrong, but
Castrol seems to be the least forthcoming about ZDDP levels in their oils -
I wasn't able to find a table specifying zinc in ppm for GTX. Rimmer Bros.
in the UK sells something that looks like a Castrol for old cars, but I
didn't see that available here. Not knowing, would you want to add ZDDP? I
don't know.

For an MGB with a catalyst, I'd probably think about using an oil with a
known amount of ZDDP (ppm). Some oil companies publish this level. I've
seen between 600 ppm and 1200 ppm. It's sort of a crap shoot with a bottle
of additive, given that you might not know the concentration.



On Sun, Jul 7, 2019 at 7:08 AM Charley Robinson <Charley38 at twc.com> wrote:

> Maybe you haven't looked hard enough.  I bought two quarts of 20W50 VR1
> yesterday at my local Autozone.  The other local stores carry it too.  The
> first bullet on the back label calls it "High Performance/Racing Oil".
> Here's a blurb from Valvoline's website:
> https://sharena21.springcm.com/Public/Document/18452/18bdee61-0a7e-e711-9c10-ac162d889bd3/a61538b4-0cbd-e711-9c12-ac162d889bd1
>
> I've been using  20W50 VR1 in my '69 MGB for the last 5 years or so.  I
> use synthetics in my newer cars.
>
> CR
>
>
> On 7/6/2019 10:01 PM, Chris Attias wrote:
>
> I don't claim exhaustive knowledge about all racing oils. Valvoline VR1 is
> primarily made for racing, and I'd call it a specialty oil. Not something
> I've seen on the shelves at local auto parts stores.
>
>
> On Sat, Jul 6, 2019 at 6:40 PM Charley Robinson <Charley38 at twc.com> wrote:
>
>> Sorry, I don't agree unless you see Valvoline as a specialty motor oil
>> supplier.
>>
>> CR
>>
>> On 7/6/2019 10:28 AM, Chris Attias wrote:
>>
>>
>> As classifications change, old oil formulations become obsolete, the
>> appropriate oil for flat tappet engines has become pretty much the product
>> of specialty oil companies like Royal Purple, Driven/Joe Gibbs, Red Line,
>> Lucas, and Collectors Choice (Moss).
>>
>> Chris
>>
>> On Fri, Jul 5, 2019 at 10:32 PM Charley Robinson via Mgs <
>> mgs at autox.team.net> wrote:
>>
>>> I've been reading up on it to refresh my memory.  A lot of folks just
>>> take other peoples' word for it.
>>>
>>> CR
>>>
>>> On 7/5/2019 9:02 PM, Max Heim via Mgs wrote:
>>>
>>> Only certain weights. You have to read the labels, or usually the spec
>>> sheets.
>>>
>>> --
>>> Max Heim
>>> mvheim at sonic.net
>>>
>>>
>>>
>>> On Jul 5, 2019, at 6:15 PM, FrankK <frankk12 at verizon.net> wrote:
>>>
>>> I assume all those brands include the correct ZDDP proportions./
>>>
>>> *From:* Max Heim
>>> *Sent:* Friday, July 5, 2019 9:02 PM
>>> *To:* FrankK ; MG List
>>> *Subject:* Re: [Mgs] Oil Additive
>>>
>>> Right, but there are other brands. I use Mobil1 15W50. Others use Royal
>>> Purple, Joe Gibbs, Kendall or AMSoil brands.
>>>
>>>
>>> --
>>> Max Heim
>>> mvheim at sonic.net
>>>
>>>
>>>
>>>
>>> ------------------------------
>>>
>>>
>>>
>>> man/options/mgs/charley38 at twc.com
>>> <http://autox.team.net/mailman/options/mgs/charley38@twc.com>
>>>
>>>
>>
>>
>
> --
> ___
>
> Chris Attias
> 8117 Azalea Dr.
> Felton, CA 95018
> home: 831.335.2275
> cell: 831.247.0001
>
>
>

-- 
___

Chris Attias
8117 Azalea Dr.
Felton, CA 95018
home: 831.335.2275
cell: 831.247.0001
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