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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.
Warning - Click here for Proposition 65 information for this product

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

Data Bulletin

Warranty

SDS



Upper Cylinder Lubricant

  • 5 star rating
    Coverage
    By  STAN,  a  Verified Buyer  from  Florida   on  September 18, 2023
    I use this product on a regular basis. Keeps everything top notch.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Maintenance
    By  RODGER,  a  Verified Buyer  from  Northern California   on  September 03, 2023
    I use the upper cylinder lubricant for maintenance at every tank full.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    WHAT A CHANGE
    By  MORRIS,  a  Verified Buyer  from  Regina, Saskatchewan  on  August 21, 2023
    I have a Nissan Murano and after it sits for awhile when it starts there is engine noise which lasts about 3 secs. Since I started using this product it makes hardly any noise on start up and runs much quieter than it did before
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Upper cylinder Lubricant
    By  RICKEY,  a  Verified Buyer  on  August 20, 2023
    Worked well in 2014 Silverado and Honda
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great product
    By  Viking,  a  Verified Buyer  on  August 13, 2023
    Awesome product, I’ve been using it for years….. Highly recommend!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Useful fuel additive.
    By  MICHAEL,  a  Verified Buyer  on  August 04, 2023
    Like the PI additive every 5000 kms, this continues to maintain, clean and lubricate your engine with every fill up. 300,000 kms now and no problems whatsoever with my 2006 Toyota Tundra. Money well spent!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Improved gas mileage
    By  SCOTT,  a  Verified Buyer  on  August 03, 2023
    Performance increases and better gas mileage for sure
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best there is!
    By  Gary,  a  Verified Buyer  from  Flowery Branch Ga  on  July 24, 2023
    This fuel additive is the best! Tried it in my CRV & Odyssey van mileage improved 2mpg, engines idle smoother.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    What Can I Say
    By  OZZIE,  a  Verified Buyer  from  West Palm Beach  on  July 24, 2023
    Not in tune enough with if this product is actually working or not, honestly can't say I notice a difference. Being that it is a Amsoil product I have put my trust in the product doing what it is suppose to do. Use it a few times between oil changes.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    good
    By  ALFEE,  a  Verified Buyer  on  July 22, 2023
    it is very good, make my car idle smooth, much less vibration.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?