Back

Close Icon

Main Menu

Your order may take longer than normal to arrive. We are experiencing extremely high demand and freight carriers are experiencing delays nationwide. LTL shipments are most severely affected.

Upper Cylinder Lubricant

Product code : UCLCN-EA

Preserves Horsepower and Performance

Your engine’s top-end is sparsely lubricated and prone to the development of performance-robbing deposits. It’s also highly susceptible to corrosion, an issue compounded by the prevalence of ethanol in today’s fuel. AMSOIL Upper Cylinder Lubricant is designed to solve those issues. Its AMSOIL-exclusive, powerful formulation helps maximize engine power and performance while increasing engine life. And unlike competing fuel additives, AMSOIL Upper Cylinder Lubricant works.
Your engine’s top-end is sparsely lubricated and prone to the development of performance-robbing deposits. It’s also highly susceptible to corrosion, an issue compounded by the prevalence of ethanol in today’s fuel. AMSOIL Upper Cylinder Lubricant is designed to solve those issues. Its AMSOIL-exclusive, powerful formulation helps maximize engine power and performance while increasing engine life. And unlike competing fuel additives, AMSOIL Upper Cylinder Lubricant works.

Upper Cylinder Lubricant



Lubricates Top-End Components
The intense heat of combustion and limitations of the oil-control piston ring result in a lack of oil at the top of each cylinder. AMSOIL Upper Cylinder Lubricant's unique additives provide that missing lubrication to fight piston-ring and cylinder wear, maximizing engine compression and horsepower. Its lubricity improvers also aid in protecting fuel injectors and other fuel-system components from wear, helping ensure excellent performance and long-life. AMSOIL Upper Cylinder Lubricant delivers 18 percent more lubricity than Lucas* and 20 percent more than Sea Foam* for better retention of horsepower and fuel economy (see chart below).1

Lubricity Performance Graph

Inhibits Corrosion
Upper Cylinder Lubricant uses potent corrosion inhibitors to coat metal surfaces, block out moisture and stop deterioration before it starts. This is particularly important when using gasoline that contains ethanol due to its propensity to attract water and hasten corrosion. Inhibiting corrosion maximizes component life and reduces wear in the engine's top-end to guard against compression loss and maintain optimum power.

  • Lubricates fuel system and upper cylinders
  • Fights ethanol-related corrosion
  • Helps keep injectors clean
  • Compatible with capless fuel systems

Keeps Injectors Clean
Upper Cylinder Lubricant contains detergent additives designed to maintain injector cleanliness. While AMSOIL P.i. Performance Improver is designed to attack and remove stubborn injector deposits that can reduce power and fuel economy, Upper Cylinder Lubricant helps preserve injector and combustion-chamber cleanliness. Using it with every tank of fuel helps retain fuel-economy and performance gains and maximizes component life.

Capless-Compatible Packaging
Many new vehicles have replaced traditional fuel caps with capless systems. The threads on most bottles restrict them from opening the flap inside the fuel neck and make removing the bottle difficult. The AMSOIL Upper Cylinder Lubricant bottle is fully compatible with capless fuel systems. It's easy to insert, pour and remove the bottle.

RECOMMENDATIONS

  • For use with cars and trucks.
  • For best results, use with every tank of fuel. Do not refill tank until almost empty.
  • Treats up to 25 gallons. Add entire bottle to tank at fill-up.
  • Treat large gas tanks with two bottles of Upper Cylinder Lubricant. Using more than two bottles is not recommended.
  • Safe for use with catalytic converters, oxygenated gas and up to 15 percent ethanol-blended fuels. Do not use with E85 fuel.
  • Do not use with two-stroke or diesel engines.

AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty/.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children.



1 Based on independent testing of AMSOIL Upper Cylinder Lubricant, Lucas Upper Cylinder Lubricant and Sea Foam Motor Treatment obtained on 02/13/2019 using the ASTM D6079 modified for use with gasoline. *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

Upper Cylinder Lubricant



Upper Cylinder Lubricant

  • 5
    Great
    By  HECTOR,  a  Verified Buyer  on  December 02, 2021

    Describe the issue

    Makes a big difference
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Quick start
    By  ROBERT,  a  Verified Buyer  from  SW Minnesota  on  November 30, 2021

    Describe the issue

    Great stuff. Brings back that quick start when I turn the key. This works better than Lucas brand.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Noticed it within 5 minutes
    By  MICHAEL,  a  Verified Buyer  from  Oshawa   on  October 27, 2021

    Describe the issue

    I added this to my truck and could notice a nice little increase in power so great stuff to use.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Upper cylinder gas additive
    By  MICHAEL,  a  Verified Buyer  on  October 20, 2021

    Describe the issue

    I now have 260,000 kms on my 2006 Tundra pick up. The engine is as new thanks to Amzoil synthetic oil, filters, P.I. gas treatments, and this upper cylinder gas additive. No problems at all! This truck may outlive me.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Upper Cylinder Lubricant
    By  Grumpy Too,  a  Verified Buyer  from  Washington  on  October 16, 2021

    Describe the issue

    Works in our vehicles year round,especially when vehicles are mostly driven in low speed town/city driving....
    Was this review helpful?
  • 4
    Keeps it clean
    By  SAMUEL,  a  Verified Buyer  from  Nyc  on  October 09, 2021

    Describe the issue

    Use it every oil change and truck run like new.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Quality Products!🤙
    By  JH,  a  Verified Buyer  from  VA  on  October 05, 2021

    Describe the issue

    Bought a old used Subaru and everything Amsoil is great so I added to the cart and gave it a shot! Can't hurt being a Amsoil product.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Smooth Operator
    By  DieselBacon,  a  Verified Buyer  from  Canada  on  October 02, 2021

    Describe the issue

    Quality product that helps keep things running smoothly and efficiently.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    More of the same
    By  CHRISTOPHER,  a  Verified Buyer  from  Boulder, CO  on  September 30, 2021

    Describe the issue

    Just great products
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great product
    By  DANIEL,  a  Verified Buyer  from  Tx  on  September 30, 2021

    Describe the issue

    I think this is a must, especially for ls motors that can have problems lubricating the top end.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?