By
BRIAN,
a
Verified Buyer
from
Spring Hill, FL.
on
January 02, 2026
A lot of gas today just lacks in detergents and lubricant.. this helps with that. I use with every fill up.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Nice
By
AL,
a
Verified Buyer
on
December 30, 2025
Works well
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Love this additive
By
DAVID,
a
Verified Buyer
from
Medford, OR
on
December 28, 2025
Noticed a improvement all around
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Must have for fuel
By
ROBERT,
a
Verified Buyer
from
Savannah
on
December 23, 2025
Use regularly to help keep upper cylinders lubed and injectors clean. A must if you are using less than top tier gasoline.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
BMW B46 & FORD Maverick EcoBOOST
By
FERNANDO K,
a
Verified Buyer
from
Carmel NY 10512
on
December 22, 2025
This is one of those products you don’t feel immediately, BUT you notice over time.
I use it as part of preventive care to support upper cylinder lubrication, especially in a direct-injection turbo engine (BMW 120.000 miles on it ) and a dual turbo injection (Ford Maverick EcoBoost with 22.000 miles) The engine remains smooth, refined, and wellbehaved even at higher mileage.
it’s an excellent complement to quality fuel and oil. great product
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Use on my: 2006 Toyota Tundra 4.7 LTR and 2004 Jeep 4.0 LTR
By
DENNIS M,
a
Verified Buyer
from
Grand Iland, FL
on
December 21, 2025
Fantastic results. Been using in both vehicles every fill up religiously for over a year now. Fantastic results.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
1 star rating
Not sure on this one
By
TIM,
a
Verified Buyer
on
December 20, 2025
Put a bottle of UCL into each of my vehicles along with a bottle of PI. Neither vehicle showed any difference in any metric at all. Save your money and pass on this one
Bottom Line
No, I would not recommend this to a friend.
Was this review helpful?
5 star rating
Gasoline treatment
By
PABLO,
a
Verified Buyer
from
Kyle Texas
on
December 19, 2025
Is good I used this product for toyota tundra 4.0
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Good product
By
BENJAMIN,
a
Verified Buyer
on
December 19, 2025
Noticeable results
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Better than rest by far!!! Fr fr no cap
By
LEVI,
a
Verified Buyer
from
Colorado
on
December 18, 2025
Immense difference used three bottles in three fills and boy do 😍 I love it!! 08 Lexus is250
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Worked
By
MARK,
a
Verified Buyer
on
December 15, 2025
No more Hemi tick
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
seems to work as advertised
By
Bret,
a
Verified Buyer
from
Castle Dale, Utah
on
December 15, 2025
Not a lot of time has passed so can't comment a great deal
Was this review helpful?
5 star rating
Gas treatment
By
DON,
a
Verified Buyer
on
December 12, 2025
Good gas treatment… the motors top end ( meaning) valves runs soother quieter…with fuel injection cleaners.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Amazing
By
PAUL,
a
Verified Buyer
from
North Carolina
on
December 10, 2025
I have tried other upper cylinder lubricants, never noticed any real difference when using. But 1st use of Amsoil I noticed the engine in my Tacoma, and my Scion TC ran a lot quieter and smoother these two changes convinced me to purchase a whole case. Gas mileage increased slightly.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Excellent
By
TODD,
a
Verified Buyer
from
Florida
on
December 10, 2025
Great product.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Yearly maintenance
By
JOHN,
a
Verified Buyer
from
Long Island New York
on
December 10, 2025
I used this for about 2 years with every oil change and never had any problems plus I always use top tier gas high test
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
a great additive
By
GARY,
a
Verified Buyer
from
Virginia
on
December 08, 2025
trust AMSOIL products
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
outstanding product
By
CHARLES,
a
Verified Buyer
from
spruce grove
on
December 07, 2025
Engine runs smooth, and better mileage,
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Cleaning out the ethanol gas
By
JAMES,
a
Verified Buyer
from
Cleveland, Ohio
on
November 29, 2025
Trips out west get you ethanol gas mix. Hoping this cleans out the remnants.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Works as advertise!
By
RAY,
a
Verified Buyer
from
Minnesota
on
November 28, 2025
Works like it is advertise and maintains my fuel and engine clean. I recently had a clogged fuel injector and it was throwing a code. I threw in a bottle before my fill up. As I was already had plan on taking it to the mechanic to see if we could get the fuel injector cleaned out or replace. The code went away and I gain back my 2.0mpg I had loss. Now every month I run a bottle of it in my vehicle to maintain my fuel and engine happy
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