MotorKote UCL Upper Cylinder Lubricant with Fuel Injector Cleaner 64 oz

Regular price $26.99 Sale price $22.00 Save $4.99
-736 in stock

MOTORKOTE Upper Cylinder was formulated to bring additional upper cylinder lubrication and to clean fuel injectors and prevent deposits from forming. 

Compatible in both fuel and diesel engines and more concentrated fuel cleaning capability than the brand leader.


  • Increases Horsepower

  • Removes Valve Stem Gum

  • Reduces carbon build up the cause of: Pre-ignition, power loss, burned valves, broken rings

  • Restores Power and engine performance

  • Increases fuel efficiency

  • Cleans injectors to Reduce: Power loss, hesitations, pinging/dieseling, loss of fuel economy

 MOTORKOTE Upper Cylinder Lubricant & Fuel Injector Cleaner,  is safe for use in all catalytic converters, carburetors, and fuel injection systems and will not void warranties.


Add full 5 ounces to 25 Gallon Fuel Tank every fill-up, maintain the ratio of 1 ounce per 5 Gal of fuel (Gas or Diesel).

Can be used with MotorKote Fuel Optimizer or MotorKote Low Sulfur Lube in Diesel engines, alternate products between fill-ups.


Proposition 65 Warning for California Consumers:

⚠️WARNING: This product can expose you to chemicals including Cumene, which is known to the State of California to cause cancer. For more information go to

You may also like

Customer Reviews
5.0 Based on 14 Reviews
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Gregory R.
United States United States
I recommend this product
Mk upper lub

Great used in the past had good results

Tony W.
United States United States
I recommend this product
will use again

first time using the U C L but i am very pleased

Rasim A.
United States United States
I recommend this product

The overall experience was great. The product was delivered on time. And it works great.

John W.
United States United States
I recommend this product
2nd purchase of UCL Upper Cylinder Lubricant

I am using this in two vehicles. Both get excellent reviews from their mechanics. My Pontiac Montana has over 170,000miles and runs like new. (the transmission sucks)

Nicolae M.
United States United States
Good product

Good product