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Old 12-10-2023, 12:48 PM   #35
CTRifecta
 
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Drives: 2SS 1LE
Join Date: Jul 2023
Location: Massachusetts
Posts: 320
M1 0w40 supercar with the dexos R cert is literally the factory fill on our motors, and is an excellent oil. It's different than the older m1 0w40 "European formula" which had a much higher calcium add pack.



Amsoil used to be good, not so sure it's anything much better than the competition now days ...



Going to stick with 0w40 supercar personally, and this is after a lot of deeper diving into this topic.


There's a great YT video from a fellow member here on what oil to run as well. Maybe someone can help by posting it.
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2024 2SS 1LE | 6MT | Riverside Blue
1100 - Order submitted - 7/12/23
2000 - Order accepted - 8/22/23
Vehicle Built (per chevy chat bot) - 10/10/23
Window sticker available online - 11/4/23
Arrived at dealership - 11/10/23
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