Johnsens Throttle Body and Air Intake Cleaners are formulated for modern fuel injected engines. This product will maintain the efficient operation of the air intake components: throttle valve body, butterfly and idle intake control valves. Cleans fuel injected air intakes opening and assemblies; cleans butterfly/throttle valve; helps improve hard starting and performance. Safe on metal and air intake plastic surfaces, 360? valve ensures product sprays in any position.