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AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor

Product code : UCLCN-EA

4.8 star rating Read 382 reviews

Customer Rating

4.8

93% would recommend

  • 5 338
  • 4 34
  • 3 6
  • 2 1
  • 1 3

AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor

4.8 star rating Based on 382 reviews
  • 5 star rating
    Great fuel addictive for running mix fuel
    By  ALAN,  a  Verified Buyer  from  Mcpherson,ks  on  March 31, 2025
    Love amilsoil products been running them in all my vehicles for 5+ years!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Fuel system lubricant
    By  WILL,  a  Verified Buyer  on  March 31, 2025
    Cleaned up the rough idle and lugging on my motorcycle in higher gears. Make sure to use a whole tank or as low to empty for the best results!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    GREAT PRODUCT!
    By  TED,  a  Verified Buyer  from  NORTHEAST  on  March 29, 2025
    I use it on every fourth fill up.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Helps preserve performance
    By  Jack,  a  Verified Buyer  from  Grand Haven, Michigan  on  March 28, 2025
    Used this in my F150 and it seems to have improved performance. I will continue to use it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Clean it up
    By  MICHAEL,  a  Verified Buyer  from  PENNSYLVANIA   on  March 25, 2025
    I seemed to notice once I added this it seemed to run alittle smoother
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Added to fuel on 2016 GMC Sierra
    By  GIOVANNI,  a  Verified Buyer  from  BadLands Alberta   on  March 23, 2025
    Worried about valve train issues on the motor in the 2016 GMC SIERRA 1500. When in fuel saving mode. Added this product regularly. 40k km later and engine is strong
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome!
    By  JEFFREY,  a  Verified Buyer  on  March 22, 2025
    This stuff is awesome, been using every tank of gas.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Use in conjuction with Amsoil PI
    By  KIRK,  a  Verified Buyer  from  ME  on  March 16, 2025
    I use Amsoil Upper Cylinder Lubricant in my Direct Injected Subaru Crosstrek as well as my Mitsubishi Mirage and 3/4 ton Chevrolet (which don't have direct injection). It seems to be doing a good job of keeping my fuel injectors clean/ engines running efficiently. **I find that their Upper Cylinder Lubricant provides good protection between treatments using Amsoil PI. Upkeep is key and so I've been using this on my vehicles since they were new. Idling and throttle response are good with all engines.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Product
    By  JEROLD,  a  Verified Buyer  from  California  on  March 15, 2025
    Worked as expected from a Great Company!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Upper cylinder
    By  JOHN,  a  Verified Buyer  on  March 15, 2025
    I use this with every oil change along with the performance improver and use the engine flush about every third oil change engine always is clean and never Burns any oil that's saying a lot for a Subaru
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Upper cylinder lube
    By  JEFF,  a  Verified Buyer  from  Ontario Canada  on  March 09, 2025
    A good in between treatment after using the P I improver
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best
    By  CARL L,  a  Verified Buyer  from  OR  on  March 03, 2025
    I use this product in everything that has an engine. Side by side, truck, car, generator and snow blower.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Looking Good
    By  GARY,  a  Verified Buyer  from  Algonquin Illinois   on  March 03, 2025
    With a recent tuneup and cylinder exam it was obvious even with 120,000 miles . The cylinder area was cleaner now than it was at 70,000 miles another winner from Amsoil !
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 3 star rating
    first time
    By  ANTHONY,  a  Verified Buyer  from  Port Colborne Ontario Canada  on  December 28, 2024
    first time i used this product so the jury is still out
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Good product
    By  GREG,  a  Verified Buyer  from  NY  on  December 26, 2024
    I use it in my duramax. It has 275k all original.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good stuff
    By  GunZ ,  a  Verified Buyer  from  Hazlet ,Nj  on  December 25, 2024
    Great stuff it Amsoil! highly recommend
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    smooth sounding
    By  SCOTT,  a  Verified Buyer  from  MD  on  December 24, 2024
    AMSoil “UCL” makes them purrr. No more sounds. Buy a case. This stuff is awesome.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Fuel treatment
    By  CLAYTON,  a  Verified Buyer  from  Lafayette  on  December 23, 2024
    great product for fuel treatment and cleaning.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best
    By  JEFF,  a  Verified Buyer  on  December 22, 2024
    Best
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Protect
    By  STAN,  a  Verified Buyer  from  Florida  on  December 21, 2024
    Great product for any engine!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?

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