2X concentrated. Same performance. Smaller bottle. Cleans and keeps clean. Use every 3,000 miles. Treats up to 21 gallons. Cleaning since 1945. For vehicles over 75,000. Gumout High Mileage Fuel Injector Cleaner helps to: clean fuel injectors and intake valves; prevent future deposit build up; restore like new performance. Treats up to 21 gallons (80 lt) of gasoline. Made in USA.

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