- Feb 21, 2023
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So the beta test just got more interesting with GM and Mobil 1 introducing some 0W40 Dexos shenanigans. I assume this was because they needed to address the oil supply conundrum due to the recall.
I now see that GM has all 0W40 Mobil 1 oils listed as Dexos R approved (good for all historic Dexos requirements), which is real convenient for both GM and ExxonMobil. So you can save a lot of $ by running FS or ESP 0W40. Also you can tell the Corvette Supercar 0W40 tax was in full effect for those schmucks.
Found this on Bob's the Oil Guy forum.
I now see that GM has all 0W40 Mobil 1 oils listed as Dexos R approved (good for all historic Dexos requirements), which is real convenient for both GM and ExxonMobil. So you can save a lot of $ by running FS or ESP 0W40. Also you can tell the Corvette Supercar 0W40 tax was in full effect for those schmucks.
Found this on Bob's the Oil Guy forum.
GM 0w-40, Super Tech 0w-40, M1FS 0w-40, and Supercar.
I wouldn't go that far claiming dexosR is a cash grab. Companies tend to iterate on stuff they know. dexosR iterates over dexos1gen3 incorporating some tests from ACEA. LSPI tests done on GM engine. We still don't know SAPS and other formulation limits for dexosR...
bobistheoilguy.com
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