But a word of wisdom if you’re going in for a smog test. Richardson said make sure you’re not running fuel-system cleaner at ...

DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning and preventing corrosion in fuel systems PERFORM AND PROTECT: Fuel additive cleans injectors ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Fuel injector cleaner serves an important function in ...