My 2006 focus sport 1.8 petrol just failed a MOT today on emissions. It has been using a lot of oil recently but I thought that was due to a leaky rocker cover gasket. There is a lot of light blueish smoke from the exhaust once warmed up. So I'm guessing its burning oil, anyone know what could course this. My thoughts are head gasket but I hope not as I know that's a big job and my warranty from M53 Ford doesn't cover gaskets (typical !!!).
Thanks for the help.