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Re: Same DEXOS approval number for several brands? [Re: 21Rouge] #5181760 08/08/19 08:18 AM
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RyanY Offline OP
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Originally Posted by 21Rouge
Originally Posted by RyanY


(Is this the definitive dexos list as quickly looking through these oils I see one and only one 0W30 that has dexos1 Gen2 approval and that is an M1 offering).


Apparently the only currently approved 0w30 is M1. I dont have access to the dexos gen 1 list (if one ever existed) so I can't tell whether others were approved at that time. Do any newer GM cars spec 0w30?


2007 Cadillac CTS 3.6L >123k miles (Valvoline synthetic HM + ACDelco PF2129G)

2012 Honda Odyssey EX-L >100k miles (Pennzoil Platinum 5W-20 + STP S6607XL)
Re: Same DEXOS approval number for several brands? [Re: RyanY] #5181772 08/08/19 08:33 AM
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kschachn Offline
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Does GM "spec" any grades or are they recommendations?


1994 BMW 530i, 246K
1996 Honda Accord, 280K
1999 Toyota Sienna, 420K
2000 Toyota ECHO, 281K
Re: Same DEXOS approval number for several brands? [Re: RyanY] #5181781 08/08/19 08:45 AM
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Snagglefoot Offline
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I believe the Citgo made oils all end with 121. The re-packaged oil also ends with 121 and includes Blaine’s Farm and Fuel, Harvest King, Master Mechanic, Motomaster ( Canadian Tire’s house brand up in Canada), and Resolute.

Another interesting observation is the code for Napa products in the USA is 103, same as Valvoline.

Supertech, STP and Amazon Basics all end in 25, which is Warren Distribution.

Thanks for posting the updated list. smile

Last edited by Snagglefoot; 08/08/19 09:09 AM.

If you want the job done right......do it yourself.
Re: Same DEXOS approval number for several brands? [Re: Snagglefoot] #5181952 08/08/19 11:45 AM
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bbhero Online Content
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STP full synthetic also made by Amalie that ends with 49. HG049 in fact.


Nissan Altima 3.5 Coupe
Cam2 Dexos1 Gen 2 5w30 Wix 57356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Same DEXOS approval number for several brands? [Re: kschachn] #5182010 08/08/19 12:45 PM
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RyanY Offline OP
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Originally Posted by kschachn
Does GM "spec" any grades or are they recommendations?

Good question! I may be mistaken and/or reading too much into this, but my understanding is that a specification indicates a "must use" oil whereas a recommendation indicates a "should use" oil.

Based on this interpretation, my 2007 Cad owner's manual appears to be somewhere between a recommendation and a specification. Under the heading "Recommended SAE Viscosity..." it indicates 5w30 but then directly states "Do not use...any other viscosity grade oil not recommended." Is this a recommendation or a specification?

Regardless, given that GM4718M is outdated, my interpretation is that I should use 5w30 dexos approved oil even though other viscosities also have dexos approval.


20190808_133550.jpg
Last edited by RyanY; 08/08/19 01:13 PM.

2007 Cadillac CTS 3.6L >123k miles (Valvoline synthetic HM + ACDelco PF2129G)

2012 Honda Odyssey EX-L >100k miles (Pennzoil Platinum 5W-20 + STP S6607XL)
Re: Same DEXOS approval number for several brands? [Re: Snagglefoot] #5182083 08/08/19 01:52 PM
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53' Stude Offline
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Originally Posted by Snagglefoot
I believe the Citgo made oils all end with 121. The re-packaged oil also ends with 121 and includes Blaine’s Farm and Fuel, Harvest King, Master Mechanic, Motomaster ( Canadian Tire’s house brand up in Canada), and Resolute.

Another interesting observation is the code for Napa products in the USA is 103, same as Valvoline.

Supertech, STP and Amazon Basics all end in 25, which is Warren Distribution.

Thanks for posting the updated list. smile



Harvest King is now WARREN OIL, not Citgo anymore



Re: Same DEXOS approval number for several brands? [Re: RyanY] #5182238 08/08/19 04:39 PM
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Garak Offline
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Originally Posted by RyanY
Apparently the only currently approved 0w30 is M1. I dont have access to the dexos gen 1 list (if one ever existed) so I can't tell whether others were approved at that time. Do any newer GM cars spec 0w30?

GM has, for the longest time, traditionally permitted 0w-30 in 5w-30 applications where useful for the weather conditions. They've had the wording in the manuals for many years.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Same DEXOS approval number for several brands? [Re: Garak] #5182314 08/08/19 06:32 PM
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RyanY Offline OP
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Originally Posted by Garak
Originally Posted by RyanY
Apparently the only currently approved 0w30 is M1. I dont have access to the dexos gen 1 list (if one ever existed) so I can't tell whether others were approved at that time. Do any newer GM cars spec 0w30?

GM has, for the longest time, traditionally permitted 0w-30 in 5w-30 applications where useful for the weather conditions. They've had the wording in the manuals for many years.

I was not aware of that...thanks! I never checked this, as I probably wont need 0w30 in my region.


2007 Cadillac CTS 3.6L >123k miles (Valvoline synthetic HM + ACDelco PF2129G)

2012 Honda Odyssey EX-L >100k miles (Pennzoil Platinum 5W-20 + STP S6607XL)
Re: Same DEXOS approval number for several brands? [Re: RyanY] #5182391 08/08/19 07:59 PM
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Garak Offline
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Just from a quick check, here's the wording for the 2019 GMC Terrain, which is the similar wording to what I've seen for years:

Quote
For the LTG 2.0L turbo engine, use SAE 5W-30 viscosity grade engine oil. Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29 °C (−20 °F), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Same DEXOS approval number for several brands? [Re: RyanY] #5183555 08/10/19 10:58 AM
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21Rouge Offline
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Originally Posted by RyanY
Originally Posted by 21Rouge
Originally Posted by RyanY


(Is this the definitive dexos list as quickly looking through these oils I see one and only one 0W30 that has dexos1 Gen2 approval and that is an M1 offering).


Apparently the only currently approved 0w30 is M1.


And yet it it appears Castrol Edge 0W30 has dexos 2 certification (and not listed in the latest approval list)

[Linked Image]

Re: Same DEXOS approval number for several brands? [Re: JimSilverado] #5183557 08/10/19 11:03 AM
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Originally Posted by JimSilverado
I have an 2018 Silverado. Purchased new. Used up the 2 free oil changes at 5,000 miles each. Currently Running Rotella T6 15-40W. No issues



Why would you have issues? But 15W40 is not what I recommend using.


make the inside of your engine oil cap white.
don't use.
Re: Same DEXOS approval number for several brands? [Re: 21Rouge] #5183777 08/10/19 05:30 PM
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Garak Offline
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Originally Posted by 21Rouge
And yet it it appears Castrol Edge 0W30 has dexos 2 certification (and not listed in the latest approval list)

I wonder how that works. I'm not exactly sure how an A3/B4 can be dexos2 (or dexos1, for that matter).


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Same DEXOS approval number for several brands? [Re: 21Rouge] #5183814 08/10/19 06:36 PM
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Direct_Rejection Offline
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Originally Posted by 21Rouge
Originally Posted by RyanY
Originally Posted by 21Rouge
Originally Posted by RyanY


(Is this the definitive dexos list as quickly looking through these oils I see one and only one 0W30 that has dexos1 Gen2 approval and that is an M1 offering).


Apparently the only currently approved 0w30 is M1.


And yet it it appears Castrol Edge 0W30 has dexos 2 certification (and not listed in the latest approval list)

[Linked Image]





Look carefully everyone.

It says "Dexos Gen 2." What appears to be a "2" is actually just the Dexos logo color coded green for dexos1.

The dexos2 logo would be in blue, not green and has a smaller 2, easy to delineate, and in the lower right hand corner.




2018 Tacoma 2.7L
EDGE HM 0W20
@ 141k miles
Re: Same DEXOS approval number for several brands? [Re: RyanY] #5183819 08/10/19 06:47 PM
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Direct_Rejection Offline
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Wait.
What the heck is going on here ?
I knew there was something wrong with this picture.

So, this oil is purportedly...
a 0W30 motor oil
dexos1 gen2
A3/B4
SL

Huh ?

I just went to the Castrol website and looked.
Strange.
Impossible.


2018 Tacoma 2.7L
EDGE HM 0W20
@ 141k miles
Re: Same DEXOS approval number for several brands? [Re: Direct_Rejection] #5183844 08/10/19 07:32 PM
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Garak Offline
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Exactly. Something is amiss here. A dexos1 oil must be a GF-5 type oil, which this is not. A dexos2 oil requires a lower SA, which this lacks.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
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