Oil
- Thread starter Gunsmokez
- Start date
Don't think so, but in any case. Think ill be using 0w40 Super. Just need to find a place that sells it.
The direct answer to your question is yes if the car is not being used on the track. The 2019 owners manual clearly states that 5W-30 is an acceptable alternative to the 0W-40 ESP, now Super Car, and yes, dexos 1 is still available and is the correct choice when using the 5W-30. I've been using it in my GS since the free oil changes ran out.
You're absolutely right. I know that the dexos 2 spec is available in the 5W-30 viscosity but it has never actually been specified by GM for use in the Gen V LT1. Does it matter? Probably not unless there is a question of using the correct spec oil in the event of a warranty claim. I would think that the dexos 2 would be fine but dexos 1 is the specified oil if using 5W-30.
From the C7 User's Manual Prior to 2019 (before 0W-40 ESP / Super Car Formula) :
" Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity
grade. Mobil 1 dexos1 is recommended. See Engine Oil - 222. "
Mobil Oil head office meeting... 'Ok staff. How can we increase our profit?. Marketing head. "I know. Lets put the word 'Supercar' on the jug. Costs us nothing and we can quadruple the price."....
Mobil 1™ Full Synthetic Engine Oil 0W-40, 4.73 L, Mobil 1™ 0W-40 - Walmart.ca
Not available Buy Mobil 1™ Full Synthetic Engine Oil 0W-40, 4.73 L, Mobil 1™ 0W-40 from Walmart Canada. Shop for more Synthetic Motor Oil available online at Walmart.ca
www.walmart.ca
I recall reading that there was a difference in the European oil, which this is versus the North American Mobile 1 (0W40)……what ever my previous findings were, it lead me to purchase the more expensive North American Mobile 1…..I’m thinking maybe it’s because the European oil isn’t Dexos certified!$32.97 for 4.73 LMobil 1™ Full Synthetic Engine Oil 0W-40, 4.73 L, Mobil 1™ 0W-40 - Walmart.ca
Not available Buy Mobil 1™ Full Synthetic Engine Oil 0W-40, 4.73 L, Mobil 1™ 0W-40 from Walmart Canada. Shop for more Synthetic Motor Oil available online at Walmart.cawww.walmart.ca
You are absolutely correct. The product shown from Walmart is the Euro Car formula and is not dexos 2 approved. As such, it is not approved for warranty purposes and GM would certainly deny any failures that may result from the use of this oil. It's formulation is also not friendly to the catalytic converters on our C7's. Please don't use this oil.
I actually found a local shop that sells it for $18 . Amazon sells it for $24 . Still looking if I can find it cheaper .
This might be an option for you if you've decided on using the 0W-40 Supercar formula. Price is in CDN dollars but I don't know what the shipping cost would be to your location. I've had great experiences with Rock Auto in the past.
I just went to the Amazon site (Canadian) and it shows it as available! As well I’ve ordered this a number of times in the past few years and did have issues regrading availability but after rechecking found it available a week or two later. Also with a “Prime” account (Amazon Prime) the shipping is free with only GST added to the original price.
There are lots of Dexos approved oils. Not many at 0w40, but in most climates 5w40 would be fine and there are lots of that.
Dexos approved oils
Dexos approved oils
That thing that looks like a 2 before the Dexos is a swish and actually shows a 1 for dexos 1 (really not a two ) it is dexos 1 generation 2 and generation 3 is available now , but all dexos 1 and all are good for C7 street use .
There is a Dexos 1 Gen 2 which is not Dexos 2. Yes it's hard sometimes to make them both out (really on the manufacturing level they should make the 2 designations look totally different than what they are currently).
Dexos 2 label (zoom in on the label to see it better):
Amazon product ASIN B00HA8H5FS
Dexos 1 Gen 2 label (first picture in the link):
Dexos 2 label (zoom in on the label to see it better):
Amazon product ASIN B00HA8H5FS
Dexos 1 Gen 2 label (first picture in the link):
