[dekaliber]

I noticed this a few times in the past week or so and thought I'd post to see if anyone had any thoughts about it. On starting the car in the morning, the RPMs will typically hover at around 1100-1200 RPM for maybe 15-20 seconds, which is normal from my experience. However, in the last week I noticed that a few seconds after starting up the RPMs will suddenly dip below 1000 and then kick back up to 1200, for seemingly no reason. The car doesn't stall or anything but it's definitely a new behavior. Also I don't notice anything amiss during normal driving.

A few things that changed recently: I installed a fresh OEM air filter (Thursday), I used a bottle of Techron (Friday), and I had my first track weekend (Saturday-Sunday).

As for gas, I have always used Shell V-Power 93.

I didn't think it was a problem, but wanted to check to see if anyone had any ideas.