Bohab

A few days ago I took a 1200 Mile Road Trip and I noticed when my fuel got low around 40 miles or less I had a very light misfire not bad enough to cause issue or set off any codes but I definitely noticed it. It went away after I filled up and have not noticed it since but it got me thinking so I was just wondering if you guys had any thoughts? I assumed it was just bad gas....

I changed out my spark plugs when I first got the car 10 to 15 thousand miles ago roughly.

Also because of it I want to change my fuel filter I imagine it's never been done in 200,000 miles I know it's inside the tank and there is a hatch underneath the seat. have any recommendations on what filter to get and tips on doing the job?