Usually tip in a quarter of the bottle in to a full tank for carburettor and injection vehicles. Sometimes for best effects you can pour the cleaner in the fuel tank at the gas pump, then top up with petrol.
If you have a carburettor engine instead of injection you can pour a quarter over carburettor slowly while the engine is running with someone giving a slow rev by lightly pressing the accelerator. Rev the engine hard for a minute then keep the revs up for at least 10 mins.
You can always do a quarter of a bottle of redex (fuel cleaner) to quarter or half a tank, but it isn't very advisable if you're unsure.
no i dont think you can use diesel fuel injector cleaner in gas engines
Diesel fuel injector cleaner will not hurt your unleaded gas motor. The diesel fuel injector cleaner is basically the same as your unleaded injector cleaner.
Modern fuels have a fuel injector injector cleaner built into them. However I do recommend you use a good fuel injector cleaner such as Seafoam or Chevron Techron once a year.
No its just to clean your injectors the fuel injector cleaner will just go right through the filter it wont do anything to filter.
Fuel injector cleaner does not hurt anything,but most fuels already have a cleaning additive in their fuel.
replace harness and use lucas injector cleaner.
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.
in the fuel 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.
buy a bottle of fuel injector cleaner to do that job for you
Paint.
Not sure what you mean. You can add a liquid fuel injector cleaner to the gasoline in the fuel tank if that is what you are referring to, just follow directions on the container.