Has there been a TSB for that yet? I read that they were updating the OLM.
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No announcement yet.
Should I take a road trip this soon?
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Don't recall seeing a TSB on the OLM, but I know that early on, there was a note explaining that in the absence of an available dexos oil, to fall back on the previously approved standard/synthetic specifications list. I do find it a bit confusing that both full and semi syn oils are dexos certified.... but that's a different subject, this new 'dexos' certification for GM vehicles.
There are as many debates as there are days on when it is best to switch to full synthetic or not to... but I often wonder, for those vehicles that are factory fill synthetic, do those rules not apply about seating the rings, etc?
lol long story short, it's up you you, Butters on what you choose to do, just use your best judgement.
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Info on the dexos spec:
The New GM dexos Engine Oil Specification - GM Techlink
Approved dexos oils:
GM dexos Licensed Products
Previous GM approved oils list (fallback if dexos product unavailable)
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Originally posted by Blackhawk View PostI varied my speed in the beginning, then opened it up around 800 miles at the track. Switched to Mobil 1 syn at my first oil change at 6700 miles.
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