GM adds new dexos R approved oils

[vagabond]

I am wondering why not always use 5W-50 in our CT5-V Blackwings if this is all true?

 

[SIR ICE]

It would appear that 15W50 Mobil Supercar oil is no longer available. They only list 0W40 and 5W50 now.

If GM engineering recommends 5W50 or 15W50 Mobil 1 for track use, who am I to question their engineering wisdom. I put well over 6,000 track miles on my ZLE Camaro with zero problems. I followed GM oil change recommendations for engine, trans, and diff. I had zero issues. Mind you I consumed 6 sets of brake pads, 12 bottles of SRF, and 10 sets of Goodyear 3Rs. I plan to do it all again in a BW.

THANKS GM for selling me such another awesome car for street and track use.

 

[Carguyshu]

I am wondering why not always use 5W-50 in our CT5-V Blackwings if this is all true?

GM would have to recertify emissions if they started recommending a different oil is likely the only reason they don’t suggest running the new 5w-50

 

[hawk02]

It would appear that 15W50 Mobil Supercar oil is no longer available. They only list 0W40 and 5W50 now.

If GM engineering recommends 5W50 or 15W50 Mobil 1 for track use, who am I to question their engineering wisdom. I put well over 6,000 track miles on my ZLE Camaro with zero problems. I followed GM oil change recommendations for engine, trans, and diff. I had zero issues. Mind you I consumed 6 sets of brake pads, 12 bottles of SRF, and 10 sets of Goodyear 3Rs. I plan to do it all again in a BW.

THANKS GM for selling me such another awesome car for street and track use.

Amazon still Lists Mobil 15W-50. A 5 quart jug is $28 bucks.

https://www.amazon.com/Mobil-Advanced-Synthetic-Motor-15W-50/dp/B07GL2XDTG/ref=sr_1_3?crid=3L8VBMET2INTC&dib=eyJ2IjoiMSJ9.wtB51Qga9retNoJsYt1ZLcDJC61kzZBmuwbSgqQ6PrVo_-C7Vx-J0rNhe332SJW3uzyHmPsWMfq_j1aoh0UAEAg3onK-jbFbTMZByy8HQA_42WB0kUSvk10_1vW0xG462q6MyWTaiBg55RLMjUDtJhYQfSxz3L42P3mW0O-xIL8H_Y8ELQr5D9110kTCNzW5_Uwlz9ojyvzoKxJwpiYKHD0giFNcLIrtS9lIt02SOAMJIo7IyPTDEzHUfdxktIR-GXZN7rID902uHmwvdL9Pq1xvBctRqcu4BT6Sj4pJz6o.xx1XKr7rJnVWeQd8nmHUYVMkXLetwIFtYwc-xHwX-_w&dib_tag=se&keywords=mobil%2B1%2B15w-50%2Bfull%2Bsynthetic%2Bmotor%2Boil&qid=1774187018&sprefix=mobil%2B1%2B15W-50%2Caps%2C267&sr=8-3&th=1

 

[SIR ICE]

Good find, but unfortunately that's not Mobil 1 Supercar 15W50

 

[redc8z06]

The Cadillac CT5-V Blackwing (6.2L LT4 engine) requires
SAE 0W-40 dexosR full synthetic motor oil. [Mobil 1 Supercar 0W-40] is the recommended brand, designed for both street driving and high-performance track use.

Mobil 1 Supercar Full Synthetic Motor Oil, 0W-40, Dexos R, Case/6

www.speedwaymotors.com

Mobil 1 ESP 5W-50 Full Synthetic Super Car Motor Oil (6 Quarts), (127372) | eBay

Outstanding thermal stability help to reduce oil aging.

www.ebay.com

 

[hawk02]

Good find, but unfortunately that's not Mobil 1 Supercar 15W50

There’s never been a “Supercar” 15W-50—Supercar branding only applies to the 0W-40 and 5W-50 dexosR oils. That’s why the 15W-50 is only recommended by GM for track use.

 

[SIR ICE]

There’s never been a “Supercar” 15W-50—Supercar branding only applies to the 0W-40 and 5W-50 dexosR oils. That’s why the 15W-50 is only recommended by GM for track use.

I was told by the GM rep that 15W50 was only recommended for track use because it didn't meet decos standards due to emissions.