2011 Dexos Oil?
 

The online edition of the 2011 Coupe Owner Manual says (on page 10-20) to use Dexos approved oil, and recommends Mobil 1 meeting the Dexos standards. If not available, temporary use of other oils is acceptable.

Right now, I can't find anything on the Mobil 1 website about any of their oils being Dexos approved, although a couple of other oil makers are at least claiming Dexos approval for some of their products.

Does someone have a link to the official GM Dexos list?

Does anyone know if Dexos oils will be any better than the best current synthetics? In other words, if Mobil 1 gets dexos approval, will it likely be better than existing Mobil 1 or just the same 'ole stuff, but tested to higher standards?

I haven't seen any GM list that includes Dexos. What little I've read indicates it has high levels of "moly" friction modifier (read expensive).


Try a Google search.

Example from Bob is the Oil Guy:

Dexos-1 will supersede the current GM6094M specification for most GM gasoline vehicles. At this time, GM plans to also use Dexos-1 to replace the GM4718M spec for Corvette, Cadillac and engines with turbochargers, which stipulated Class III synthetic blends; Mobil 1 or the equivalent.

http://www.bobistheoilguy.com/forums...Number=1798252

Cant answer all your questions but Mobil1 is now approved. http://www.mobiloil.com/USA-English/...l_1_5W-30.aspx

I think Pennzoil and Quaker State both are now advertising that they have DEXOS-1 compliant 5W-30 motor oil. I sent a message to AMSOIL 2 or 3 weeks ago about DEXOS. They said they do plan to introduce a DEXOS compliant oil in the near future.

I found this while using kbb.com:

http://autos.aol.com/article/gm-engi...togenlfpge0065

:thumbs:

I did find it by doing the "help me select the correct oils" thing.

altho this seems like an industry mag, it's an interesting piece about halfway down re Exxon/Mobil.

http://www.imakenews.com/lng/e_article001880514.cfm

But a quick check of Mobil One's site turned up A(using 2011 Corv. GS as the vehicle): "...Mobil 1 5W-30 is the approved and the first choice of many premium car manufacturers. Mobil 1 5W-30 is an officially dexos1 licensed product ..."

http://www.mobiloil.com/usa-english/....aspx?option=2


Note: I have repeatedly found Mobil One's site to be confusing and at times, impossible to get the correct information. Even tho I've complained in the past (years ago) it still seems as if it's a site that barely changes. Therefore, the info I got above is "random" luck on my part. It does say on the bottom of that specific page the info on oils is updated monthly.

Yes, the general information page about their 5W-30 is very specific that it's now dexos1 approved. But the product data sheet, which seems to have a date of September 2010, has not been updated to show that information.

Reading through all of that, I get the impression that the 5W-30 has not changed, it already met the dexos standard. That would be impressive. But you sure can't figure it out from their website.