I doubt it. I think you have water in your tank because it's no way how antifreeze can go in your tank unless you puuted it there. So if you have water in your tank, just buy stuff which is called dry gas. And everytime when you fill your tank add required quantity. To get rid of water in your tank you will need to do that at least 3 times, it depends on how much of water you have.
YES !
no
You have a mess.
You'd need to drop your fuel tank and drain it out.
Have you tried using gas line antifreeze? That will help to remove some of the water in the gas. The best way to make certain all the water is out of the tank is to siphon the gas out, let the tank air out and re-fill the tank with gas from a station you know does not have water in the gas.
Um, no! There are addatives you can put in. Just goto your local parts store and they will assist you.
other than getting a bit of either water and or slug in your injectors it should be nothing should happen... get a carb/fuel injector cleaner in your gas tank fill up the tank with gas 89 octane or better and drive. I also put GAS antifreeze in at about half a tank and run it almost empty to clean my tank out before and after the winter which is when water can best get into your gas tank.
The first, and most likely result will be that the engine won't run any farther than the fuel in the lines will carry it, antifreeze will not burn so once it hits the injectors the engine will stop. In the tank it will pool at the bottom as it is denser than the fuel and will be the only thing the fuel pump will pick up. The problem is that you will then need to clean the entire fuel system. If you did not start the car, you need to remove the tank and drain everything out of it. Wash it inside with gas. Reinstall the tank, add couple bottles of dry gas, fill up the tank. Start the car. You might have to use dry gas more than once, if there is any moisture trapped within the tank (drying will not work because antifreeze takes forever to evaporate).
The tank should be drained and cleaned. The fuel filter needs to be changed, and the injectors might have to be cleaned.
there is an antifreeze overflow tank, look on the radiator next to the radiator cap and there should be a smallish hose, follow it and you will find the tank.
something.
Antifreeze will burn; however, if it's been diluted with water 50/50 (which is how it's used), the engine will not run very well at all and there will be a lot of white smoke from the tailpipe.