Follow the directions on the container for the best results.
in the fuel tank
Pouring the injector cleaner down the throttle body won't clean the injectors. You need to add the injector cleaner to the fuel tank for it to help you. Read the instructions on the container of injector cleaner.
Allmost allways add it to a full tank.
Fuel injector cleaner is a liquid which one puts in their gas tank to clean the engine and improve fuel performance. Fuel injector cleaner can be purchased at Canadian Tire, Walmart, and at many gas stations.
Try some fuel injector cleaner in the tank.
In the gas tank...put one bottle to a full tank of gasoline.
You completely waste the injector cleaner. It has to flow through the ports which supply fuel to the engine to do its job. That's why the directions tell you to put it into the gas tank in a certain ratio to gas. It mixes with the fuel in the tank, flows through the system and out of the injector ports.
Your fuel injectors are dirty. Put in some good fuel injector cleaner with a full tank of super.
None. You can add a can of fuel injector cleaner to a full tank of fuel once a year but never add any of the gas treatments.
when the pump was changed, maybe dirt fell in tank and the injectors are clogging up. run some good injector cleaner in fuel tank. and see if this helps, if it does add injector cleaner to tank at least once a month or more often. it will not hurt to use it more often.
If you added a small container like 10 ounces or less to a full tank of gasoline, not to worry, nothing will happen except maybe the fuel injectors will get cleaned.
I assume you are asking about professional cleaning. Unless you have an injector that is giving you a problem the answer is no. Modern gasolines contain a cleaner to help keep injectors clean. Replace the fuel filter every 36,000 miles. Once a year pour one can of a good fuel injector cleaner in a full tank of fuel. A cleaner such as Seafoam, Techron, or similar product is just good insurance. Avoid the cheap cleaners that you buy for under $2 as they are for the most part worthless.