2013 Infiniti G37 xS — small oil leak or just old residue?

Intermittent stuff lies if you only catch it once. Get a real battery/charging test on the 2013 Infiniti G37, not just resting voltage, before blaming a module. Save the big job until that test fails. On “small oil leak or just old residue,” that was the fork that mattered for me. Run the total, not the monthly, before you commit. I'd rather pay for diagnosis than a second guess-repair.

I wouldn't throw parts yet. Swap the cheap/easy piece first on the 2013 Infiniti G37 and see if the fault moves. You'll know quickly if you're on the wrong tree. If it doesn't change the out-the-door or the repair estimate, it's noise. Happens in gear, not in park, for what that's worth.

If it were in my driveway, swap the cheap/easy piece first on the 2013 Infiniti G37 and see if the fault moves. Save the big job until that test fails. Was this after sitting overnight? Video is ugly but it shows the hesitation.

Ask what changed right before it started. Move a coil or plug on the 2013 Infiniti G37 if it's cylinder-specific and see whether the code follows. You'll know quickly if you're on the wrong tree. Happy to compare notes if your setup is different. A day of patience here is cheaper than a wrong part. If it repeats twice more I'll book time.