Is putting anything other than oil gas or antifreeze into your car bad?

Yes, putting anything other than oil, gas, or antifreeze into your car can be very bad. It can damage the engine, the fuel system, or other important components of the car. Some things that people have mistakenly put into their cars include water, soda, brake fluid, and even gasoline. Water can cause the engine to overheat and freeze, soda can clog the fuel lines, brake fluid can damage the seals in the engine, and gasoline can cause a fire. If you have put anything other than oil, gas, or antifreeze into your car, it is important to take it to a mechanic immediately so that they can remove the substance and assess the damage.