Does anyone know what this could possibly be without me taking it into service? While I'm driving, between 20-40mpg, I leave some kind of noise outside the car, coming from the front right. It sounds like something is loose, like a bolt is loose and the washer behind it is what I'm hearing while driving.

I checked the bolts on the tires and they are all tight and the center caps are good too. I have no idea what else it could be.

 

Check castor bush & sway link on RHS