AC Delco oils- Are they all Mobil Products

[Gene K]

Did not mean to RE you since I’m not responding to Motorcraft …
But, FYI … SK is the big base oil supplier … Yubase …

I'll take your word for it. I had been told they switched to Ultra-S after inking the S-Oil Deal.

 

[CapitalTruck]

There are two versions of Dexos Full Syn available. One made by ConocoPhillips and one from
ExxonMobil. I use the XOM product which VOA’s strongly suggest is Mobil Super Synthetic, a very fine oil.

 

[silversport]

when GM signed their marketing agreement again with Mobil oil, (around the time that Dexos 1 generation 2 happened a few years back) the paper mats put in to save the carpets at both my local Cadillac dealership and separate Chevrolet dealership read GM uses Mobil lubricants (or something similar...

Bill