Noticed I get a bit of a little rumble on idle and the rpms will drop very slightly but will do this until I get moving again. Any ideas can help, was thinking of changing the spark plugs cause my fuel economy isn't exactly the best it could be either thought maybe it could be related.

It's a 2006 xa with 74k
Thanks

 

I mean, spark plugs are usually the first thing we think of with a rough idle. It can't hurt. I'd start there for sure. I take it you've had this car for a while and it hasn't done this in the past? Because I mean, all cars grumble a little bit from time to time at idle, so I was making sure the car isn't just new to you.

 

Not gonna lie I've had this car for maybe a few weeks but I'm aware a car has a little grumble to it, I'm around them all day but with the bad fuel economy the 2 and 2 can lead up to the plugs

 

It usually IS the plugs in those scenarios. And who knows how well the last joker really took care of it, or last time the plugs were changed. Maybe never. Start there and report back and let us know.