[T3] Stupid question #395 Oil change time?

[William Jahn]

I'm lost on all the terms on oils. Since I've been using 20W50 Castrol it
has no zinc or ZDDP. The Valvoline 20W50 has 1400 ppm zinc and from what
I've read the zinc basically is a metal coating that stays on the bearings
and other moving parts. Would this oil be good enough?

On Tue, May 28, 2019 at 2:14 PM William Jahn <willjahn975 at gmail.com> wrote:

> I saw that in autozone and it was confusing and about $20 for a bottle.
>
> On Tue, May 28, 2019 at 1:58 PM Jim Adney <jadney at vwtype3.org> wrote:
>
>> On 28 May 2019 at 15:49, donrob at yachtsales.com wrote:
>>
>> > Lucas Oil makes oil specifically for classic cars:
>>
>> > https://lucasoil.com/products/hot-rod-high-performance
>>
>> Look also here:
>>
>> https://lucasoil.com/pdf/Zinc_Values_MotorcycleOil.pdf
>>
>> Here's a chart listing the zinc content of all the Lucasoil products.
>> Down in
>> the lower right corner there's mention of a Lucas zinc additive. Looks
>> like 2
>> oz of that, per oil change, would make any of our oil options good. (The
>> Hemmings article seems to say that 1200 ppm is sufficient. I wonder what
>> that bottle costs?
>>
>> I have serious doubts about the other Lucas additive, the one they say
>> you
>> can add to either the gas or the oil. That seems really odd.
>>
>> --
>> *******************************
>> Jim Adney, jadney at vwtype3.org
>> Madison, Wisconsin, USA
>> *******************************
>>
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