so im riding down the freeway and i go by this Harley rider. changed into his lane and then went on the throttle a bit. a few min later i look to my left and there he is, trying to flag me down. he then tells me that he can smell burning oil as im riding. he also said it might be because my piston rings are worn out. im freaking out. how do i know for sure if i am burning oil before i take it in? is putting new piston rings in expensive?