Fuel System Cleaner

What is a fuel system cleaner and how does it work?

A good fuel system cleaner effectively cleans fuel injectors, fuel lines, combustion chambers, and intake and exhaust valves. It also removes condensation from the fuel tank and fuel lines. Davisville recommends THE VERY BEST IN TECHRON FUEL SYSTEM CLEANER by Chevron
with every oil change at every 12,000 miles.