You may think you know everything there is to know about cars, but sometimes even experts can get it badly wrong. The guys and girls of What Car?, PistonHeads and Classic and Sports Car reveal their embarrassing car-care fails

Changing your oil. Easy, right? Apparently not if you’re Nigel Donnelly, editor of An old car, a lot of oil and forgetting one simple thing led to a trip to the garage…

If you want to avoid your own embarrassing car-care fail, head to your local Ford Motorcraft centre