My hot idle is always right at the 30 mark, for what it's worth. 5w30 oil if it matters.
I know Katech_Zach and Katech_Mike have some good failure intel on this- how low is too low, and what is indicative of an issue.
Here's a relevant post:
https://www.camaro6.com/forums/showp...postcount=1155
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2017 ZL1 M6 Black | Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // BMR MM // BC Forged KL13
Mods being installed-
oil pump, cam, ported heads, dual in-tank, Goliath and XDI, corn, etc., etc.