how a car engine works

this may not be about science lately, but its quite interesting, and most people should know the basics. this will help you avoid being tricked into geting unnesasary(and expensive) things done on you car, when you go in to get a toon up.
ok, well, this is the most simple way i can put it.
it all starts with a ratio of air to fuel, wich is 14.7 to 1. when this is mixed, it creates combustion. this goes down the spark plug, wich leads to the vaulves of the car. these vaulves open and close, leting in the fuel and air mixture. when this is condenced into a small space above the pistons, it creates presure, wich forces the pistons down. therefor, when pushing the pistons down, the pistons turn the crankshaft. the crankshaft creates a circular motion, wich intern, moves the weels on the car round and round.

ps- i tried to add some humor in that last sentence.