Lucas Oil Products Deep Clean Concentrate Fuel System Cleaner provides the same benefits as the standard deep clean but in a smaller, more convenient package. Lucas deep clean is designed to clean the entire intake system and combustion chamber, including injectors, piston tops, intake ports, cylinder heads and intake valves. This product contains special Lucas additives to improve fuel economy, reduce NOx emissions, increase power, acceleration and reduce octane requirement increase, allowing the consumer to use lower octane fuel. It effectively removes carbon deposits and eliminates knocking and pinging. Lucas Deep Clean Fuel System Cleaner effectively lubricates fuel pumps and rings for longer cylinder life. The active chemistry in this product has been fleet and OEM tested with excellent results. It brings sluggish engines back to life. This product is low odor, alcohol free and is oxygen sensor safe. It is recommended using Deep Clean Concentrate Fuel System Cleaner every 3,000 to 4,000 miles.