How come petrol at Morrisons in Scunthorpe is 94.9, when it is 96.9 at Morrisons in Grimsby? I am told that there are places in Scunthorpe where it is 93.9. On the other hand the Jet station where the Humber Bridge road joins the motorway petrol is 99.9, and at a small garage in the country it costs 101.9.