Hey guys! i'm fairly new to AZ, so I apologize if there is an active thread on this already. I have an 08 TL 3.2. just under 100k everyday driver. As of late i'm noticing my rpms at around 600 while idle and stays between 1200-2k while driving it (even on the freeway). If I give it juice it will climb....but just hovers around that range mostly. I've also noticed that while driving and stop at lets say a red light...the rpms drop to about 500 and then pick back up to 600. Those #s seem a bit too low to me...but maybe i'm wrong. Any toughs or suggestions?(No Check engine light either).

Thanks!