What happens if you put too much fuel injector cleaner?

Fact is, you can use too much Techron and cause damage to your fuel tank lining. You mention the vehicle runs better after you use it. After you have it down that low, you should probably take around 15 gallons of fresh fuel. Check on the back of the bottle for the proper amount of Techron for that much fuel.

All this is further explained here. Furthermore, can fuel injector cleaner cause problems?

While you may never have a problem with your fuel injectors (especially if you regularly use a fuel injector cleaner), sometimes they get dirty, clogged, or completely fail and need to be replaced.

Also Know, how often should fuel injector cleaner be used? The times to use the fuel injector cleaner depends on the type of transmission you have: Gas-injector cleaners should be used every 1,550 miles. Diesel-injector cleaners should be used in every tank.

Subsequently, one may also ask, can I use fuel injector cleaner every time I fill up?

In fact, it's very common and recommended to use it with every fill up as it's been known to improve fuel mileage by so much that even as you spend more money on the additive, your total costs will not go up, or may even go down because of the fuel mileage improvements.

How long does it take for fuel injector cleaner to work?

about 30 minutes