shell in linwood is your best bet, if youre down the way ayr tesco does the 99 ron or there is a shell station in kilmarnock. irvine tescois meant to be getting the 99 ron stuff at some point. there is also a shell station in elderslie and hillington, the only other shell station in ayrshire is maybole. Ive never been that desperatefor fuel that id go to maybole for it as the best thing about that place is the road oot and they eat their weans down there in the deep south