Stock Warm Idle RPM for 2018+

[mustangpegasus51]

My RPM at warm idle is ~650 steady. Workshop manual says ideal "hot" idle is 729rpm.

Is my idle actually low, or this a terminology issue i.e. "hot" and "warm" idle being different states?

Seen another thread where everyone said stock idle was 650, but this was in 2015.

Thanks for any help!

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[Elp_jc]

Mine seems actually a little lower than that, at around 625 rpm eyeballing it, so perfectly normal IMO. I need to switch from gear indicator to digital tach one of these days, to see exactly what it is. It goes a little higher with the A/C on, but still less than 700. Surprisingly, engine feels very smooth at that super low idle; incredible. You can thank the EPA for that .

 

[mustangpegasus51]

Thanks @Elp_jc ! I've been using my OBD scan tools to check exactly what it is -- mine hovers around 650 +- 1-3 at idle.

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