So, there is a Mobil1 0W50, but it's not for our vehicles.  Thanks, and I stand corrected for my earlier post.  I just didn't look deeply enough into the Mobil1 site.  mcneely

---- Ed McLean <email99@BELLSOUTH.NET> wrote:
> Mobil 1 0W-50 is a racing oil with about twice the amounts of phosphorous
> and zinc as their street oils.  See the Mobil 1 Product Guide:
>
>
> https://mobiloil.com/~/media/amer/us/pvl/files/pdfs/mobil-1-oil-product-
> specs-guide.pdf
>
> https://mobiloil.com/~/media/amer/us/pvl/files/pdfs/m1-racing-product-
> guide-2015.pdf
>
>
>
> In the following faq there is interesting information about using Mobil 1
> oils other than automobile street oils in cars.
>
> https://mobiloil.com/en/faq/product-faqs

--
David McNeely