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Hello,Is it ok to use one can of B-12 every month or 500 miles in a 1999 Ford Ranger with 300,000 miles? Or should I use less frequently?Thank you,Jason
Yes, Berryman B-12 Chemtool Fuel Injector Cleaner (part #0116) is definitely safe for usage as frequently as once a month or every 500 miles. In addition, you might consider using Berryman B-60 High Mileage Fuel System Rejuvenator (part #7516) twice a year. It is specifically formulated for high-mileage vehicles, and has our best detergent package for cleaning injectors, intake valves, and combustion chambers, and provides gasoline protection for up to 6 months.