Liqui Moly Valve Clean

This high-tech additive removes residues and deposits to keep fuel and intake systems clean. Add a bottle at every fill-up and enjoy better gas mileage, lower emissions and reduced knocking and hesitation. Works with turbocharged engines; safe for oxygen sensors and catalytic converters. Environmentally-friendly and suitable for regular or high-octane gas. 150ml bottle with fill nozzle treats 1 tank of gas.