[Mgs] Oil Additive

Sun Jul 7 11:58:48 MDT 2019

Life is simpler where I live. I don't drive enough to worry about cam wear.
And in Texas we have no emissions testing for cars 25 years and older so
there's no worry about the catalytic converters. I would just change the
oil and filter at 3000 mile intervals and use Castrol GTX in 20W50 weight.
That said, I never drive 3000 miles so I just change oil and filter
annually-ish.

Rick

On Sun, Jul 7, 2019, 10:04 AM Chris Attias via Mgs <mgs at autox.team.net>
wrote:

> 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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