How long does it take car to breakdown if someone puts water in the gas tank?
The water drops to the bottom of the tank immediately, so you may drive a mile or so before you have trouble. This would also depend on how much water was poured in.ANS2:My car got hit in the rear end and it folded the trunk lid into a funnel that filled my gas tank with water. Overnight, the water froze and I was able to drive the car for at least 34 miles the next morning. If you fill your tank with ethanol, you can run the car on around a 80% mix of alcohol and 20% water. It isn't going to give you good performance but it will run.