Upper Cylinder Lubricant

Preserves Horsepower and Performance

Upper Cylinder Lubricant, 6 oz. bottle or case of 12! A MUST for anyone who wants to keep that car going LONG TERM!! Really long like beyond 200,000 miles.

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

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 Product Data Bulletin

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
• AMSOIL Reputation – Product actually works

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, know what I mean? No embarrassing moments fooling around at the gas station.

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.aspx.

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.

Buy in the Sioux Falls AMSOIL store at 47073 98th ST..  or use this Online link to the Amsoil sale page if you are outside of the area.

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.

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.

Fuel additive Testimonials

Outstanding Upper Cylinder Cleaner

By  RICH,  a  Verified Buyer  on  December 01, 2023

Once again I find Amsoil to be superior. I’ll tell you what – I have used this consecutively for five months and found that my valves were way cleaner after use, than prior to using this product. If I can see what five months has done, imagine a year of using this product and how it would keep them clean. Thank you Amsoil. I would seriously recommend using this as a preventive measure monthly.

 

 

Upper cylinder lub for my engine

By  JOE,  a  Verified Buyer  from  Southeastern Mn   on  October 07, 2023

Talk to a Rep a couple years ago and he suggested I use this product for my hard workin’ engine that is pulling my 5th wheel camper. Being a mechanic all my life and a strong believer in upper cylinder lubricants, I questioned the abilities to do what they claim. After researching and talking to others and seeing the results on Amsoil products, I have been using the upper cylinder lub in every tank. I need to do the best I can to make my engine work the best for me and last the longest for me. I believe Amsoil products do what they say.

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

 

Wow!

By  Gary,  a  Verified Buyer  from  Georgia  on  June 07, 2023

Put this in my 2020 Honda CRV, mpg jumped from 32.4 to 34.9 in town driving. I wonder what the PI Fuel Additive will do. Engine operates quieter and lower rpm @ idle. Definitely using this in both my Hondas at fill up!