Oil was in use for 11 months. Mostly highway miles. OEM interval is 1/10K.
Polaris ran this sample twice due to my concerns about the additive levels. However, the CA, P and Z levels remain unusually high for M1 0W40; not sure what's going on.
I personally installed this oil and took the sample. The owner did not top off the oil during this interval. The car was at the dealer for an unrelated electrical repair and they did not perform any mechanical work.
Edit - looks like the M1 0W40 add pack has varied depending on the batch?
This VOA from 2020 shows 3437ppm:
This UOA from 2022 shows 3771ppm:
Polaris ran this sample twice due to my concerns about the additive levels. However, the CA, P and Z levels remain unusually high for M1 0W40; not sure what's going on.
I personally installed this oil and took the sample. The owner did not top off the oil during this interval. The car was at the dealer for an unrelated electrical repair and they did not perform any mechanical work.
Edit - looks like the M1 0W40 add pack has varied depending on the batch?
This VOA from 2020 shows 3437ppm:
Mobil 1 0w40 Euro
Sorry, I’ve been meaning to post this for about a month. Put this in a 19’ Atlas 3.6 EA390 CDVC VR6. Cheers!
bobistheoilguy.com
This UOA from 2022 shows 3771ppm:
Mobil 1 0W-40, 8.4k mi OCI, 144k mi, 2013 Cadillac CTS-V
I switched away from Blackstone. Previous UOA is here. UOA history for this vehicle is available with this search: https://bobistheoilguy.com/forums/search/?q=CTS-V&t=post&c[child_nodes]=1&c[nodes][0]=3&c[title_only]=1&c[users]=Emperors6&o=relevance&g=1. Going forward going to run an OCI of...
bobistheoilguy.com
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