Meet GheyRay: Lower, Wider, Lighter!

[polishmafia]

Dexos is GM's own "standard" for quality of oil. Its nothing new, its just a fancy word that they license out to oil manufactures so that GM can make more money.

Almost all 2012+ GM vehicles state they need to run "Dexos" oil. I guess they need money to pay their workers for all the recalls.

[Kracka]

So are they filling it up to the wrong capacity listed on a computer or something, and not even checking the dipstick afterwards?
Chevy revised capacity from 10.3 to 9.8 quarts last winter, that was mistake #1 for them. Mistake #2 was blindly dumping in 9.8 quarts without taking into account that is total capacity, but getting a complete drain is nearly impossible.

[Kracka]

Cool. I know Ford factory fill now-a-days is also semi-syn as well (Motorcraft). Well for their normal cars at least, no idea on their performance stuff but assume it's the same.
Yup, I think they're doing it for the extended drain intervals and to squeeze out a little extra MPG while saving on the cost of a full synthetic. Once my free oil changes are done (24k miles) I'll likely switch it over to Mobil 1 5W-30, but in the meantime I'll continue taking advantage of the free oil changes (assuming 3rd time's the charm that is).
Dexos is GM's own "standard" for quality of oil. Its nothing new, its just a fancy word that they license out to oil manufactures so that GM can make more money.
Correct, basically a standard above the standard. Many oils meet the specification, but you do have to license the logo from GM to put it on your product so only a few have it. I think this also has to do with the extended oil drain intervals and the factory powertrain warranty; if you're getting your oil changed at JoeBlow Shop using generic bulk oil while still following the extended drain intervals set forth for Dexos1 oils and have an engine failure, good luck getting warranty to cover it.

Is it truly a better oil though? Doubt it, mainly marketing + licensing rights.

[Halon]

Yeah, Ford also moved to 5W-20, I'm assuming for environmental (MPG) reasons.

[Kracka]

So has Chevy in a lot of their mainstream 4-cylinders; not sure about the V6's. I think the V8's all still run 5W-30 though.

[Kracka]

I just discovered the stock ECU has no-lift-to-shift programming in it...must try this on the way home!

[polishmafia]

No lift to shift is awesome!

Starting with 2014, GM's 5.3 and 6.0 (or maybe its 6.2) require 0W20.

[Halon]

I hate that word require. Is it really required? Or is it just for fuel economy reasons and youd actually be fine (and better protected) with a 30wt?

[Shane@DBPerformance]

The GT500s use a 5w-50. Kind of an extreme range.

[polishmafia]

I hate that word require. Is it really required? Or is it just for fuel economy reasons and youd actually be fine (and better protected) with a 30wt?

It is required if you want to keep your warranty. If you blow the engine and they find out you didn't us the right oil, they can void the warranty.

Take what you will from that statement. :P