Lucas Oil Deep Clean 10512 Fuel System Cleaner, 16 oz Bottle, Pack of 12Lucas deep clean is blended with an exclusive Lucas additive package and specific carrier fluid that contains no diesel fuel, kerosene or anything else that can be harmful or useless to an engine. It also reduces NOx emissions, eliminates the need for higher octane fuel and deep cleans the entire fuel system and combustion chamber. Unit: EA UPC: 049807105129 Model Number: 10512