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30% Off Online Orders of Select Parts and Accessories. Enter Promo Code PEP30 in Cart

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30% Off Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code PEP30 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 10/27/16. Online orders scheduled for in-store pick up must be completed by closing on 10/26/16 for discount to apply.

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  • Part #: 10020|
  • SKU: 9103311

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    • Causes fuel to burn more efficiently for greater fuel economy and fewer emissions
    • Negates the harmful effects of "reformulated gasoline"
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PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

Lucas Oil Fuel Treatment - Upper Cylinder Lubricant

Lucas Upper Cylinder Lubricant Fuel Treatment is formulated for gasoline and diesel engines. It does not contain harmful solvents or alcohol. This product is a blend of heat resistant, super slick oils and additives with a high detergent action that cleans and lubricates the fuel system.
  • Causes fuel to burn more efficiently for greater fuel economy and fewer emissions
  • Negates the harmful effects of "reformulated gasoline"
  • Neutralizes the harmful effects of ultra low sulfur diesel fuel
  • Lubricates rings and cylinder walls for longer life
  • Cleans and lubricates carburetors, injectors and valve seats
  • Eliminates need for higher octane fuel
  • Add to every tank of gas or diesel for continuous cleaning and lubrication
  • Replaces the need for lead in older engines


Rated 4.7 out of 5 by 54 reviewers.
Rated 5 out of 5 by This product seems to have solved my problem The engine light on my Nissan Sentra was coming on occasionally for the last few years. The car was also going into limp mode every time it happened. I had to keep resetting the ECU to deal with it. The code I was getting was for the throttle body. I took it to the dealer and they cleaned the throttle body. The dealer then said I need to get a new throttle body. This is an expensive fix which I didn't do because I don't think it will help. I have read about many people with my car who seem to have this problem. Changing the throttle body doesn't fix the problem from all the reviews I've read. The car also seemed to be hesitating and running rough at times before the light would come on. After reading the reviews for Lucas UCL, I decided to try it. For the past month since I put it in, the car is running smoother and the light has not come on. I have also been making sure now to only get top tier gas and even premium when I fill up. Hopefully these changes will solve the problem that I've had. October 18, 2016
Rated 5 out of 5 by Helps keep car running fine I use some of this in all my vehicles everytime I do an oil change. Helps keep all my vehicles running smooth & mpgs decent. Never had any issues using this product. One of my cars has 295k miles and still gets 31mpg. I think some of this lucas treatment helps contribute to that. October 17, 2016
Rated 5 out of 5 by Injector cleaner I think this is the best injector cleaner in the market, i am using this product for many years on my cars and had no problem ,i'm very satisfied with it, October 9, 2016
Rated 5 out of 5 by Lucas fuel treatment Increased fuel mileage and easy to use. October 7, 2016
Rated 4 out of 5 by good good it's working o k September 29, 2016
Rated 5 out of 5 by Love this for fuel injection Very good product September 17, 2016
Rated 5 out of 5 by I use this product on all of my 3 Corollas. This product help keep the injectors clean and the motor run smoothier. September 1, 2016
Rated 5 out of 5 by Great Product Always use this Lucas product to keep my vehicles fuel ejectors clean and my engine running smooth August 16, 2016
  • 2016-10-22 T09:30:48.260-05:00
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