I booked Halford's Fuel Service Plus - Fully Synthetic for my car at £92. When I took my car, the guy was holding a checklist for the service which was only for Fuel service ( which is for £35) and the guy surprisingly said he had never heard of Fuel Service Plus. Advised me he would ring in 3 hours and he never did. I had to call him and collected my car after 5 hours and he gave me a list of advisories and I was stunned to see his quote of £1600 for one injector replacement, 2 tyres and a battery. I bought the injector online from ebay and paid 120 pounds to be fixed from a different garage. Halfords will empty your pocket if you do take their services.