STP Fuel Injector Cleaner, High Mileage, Super Concentrated (5.25 fl oz Bottle) STP Super Concentrated Fuel Injector Cleaner contains concentrated detergents that help dissolve and remove harmful carbon, gum, and varnish deposits on fuel injectors. Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling. This product is made with jet fuel, a high-quality carrier of active ingredients. This product is compatible with cap-less gas systems. 5.25 fluid ounces bottle treats up to 21 gallons of gasoline. 
  • Helps save gas and lower emissions by cleaning dirty fuel injectors to restore performance
  • Helps restore lost power and acceleration
  • Helps smooth rough idle and eliminate tough starts
  • Removes harmful deposits
  • Saves gas
  • Compatible with cap-less gas systems
  • Use every oil change or 4,000 miles
 

Instructions: Pour entire contents into gas tank before or after fueling. One bottle treats up to 21 gallons of gasoline.