What would happen if you put the wrong fuel in your car?

This is a question that has troubled my mind for quite a while, and I thought to talk about it.

Now it has always been in my fears that one day, when I’m not paying attention while I’m fueling my car, I might put in the wrong type of fuel, and if one day I do, what type of damage would it do to my car? Well it looks like the answer has been on youtube for a good time now. We don’t know if what this guy does to these old cars in the video, will work even for the new cars, but from my assumptions, engines are far more complicated now, and it will take a lot more than just replacing the fuel to fix this kind of error. Gives us your thoughts. Has this ever happened to you? What would you do?

wrong fuel