I put this treatment in my cars tank about 5 or 6 times a year. The engine runs really well and gas mileage has improved over time. The only small problem to me is the plastic seal under the cap. It can be tough to remove.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
PI fuel injection cleaner
By 
DON, 
a 
Verified Buyer 
on 
September 28, 2026
Good product motor runs smooth… if running on long highway travels… it’s helps the cleaner circulate through better..
I have a 2022 BMW with 20,000 miles. I've been noticing the engine has a little stumble now and then at idle at a stop light. I put a whole bottle of this injector cleaner in with a full tank of gas. By the time I'd used a half of a tank of gas the engine idles so smooth that I can't even tell if it's running or not. I look at the tachometer and it's idling very nicely and smooth. This stuff works !!
Bottom Line
Yes, I would recommend this to a friend.
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4 star rating
Good to use regularly.
By 
JON, 
a 
Verified Buyer 
on 
September 21, 2026
Use it regularly and get Atleast a ten percent gain.
I use this in my wife's car. It has gotten to the point where she actually notices the difference when it is in her tank. Another great product from amsoil.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
It works good
By 
RAVI, 
a 
Verified Buyer 
on 
September 10, 2026
By 
STEVEN, 
a 
Verified Buyer 
on 
September 07, 2026
Best inj cleaner hands down
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great product, great results, great price
By 
DES, 
a 
Verified Buyer 
on 
September 06, 2026
I only recently became aware of this Amsoil fuel system additive through Rainman Ray.
This cleaner produces great results. I definitely will buy again and again.
The amsoil gas treatment seems to work well. The only downside is the cost.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Amzoil PI Gasoline additive
By 
Tony, 
a 
Verified Buyer 
on 
September 03, 2026
Tried this in both my 2015 Subaru Forester 2L Turbo and a 2016 Chev Silverado 5.3 L. After running a full tank through both I can say both engines ran smoother. The Subartu so much, I couldn't feel it at idle. Very impressed with how well it worked.
I use this in both vehicles and it does improve gas mileage for both like everything I have tried from Amsoil i love
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great product
By 
CHARLES, 
a 
Verified Buyer 
on 
August 24, 2026
I use this product regularly and keeps my engine running smooth .. seems to keep my fuel mileage consistent .. the engine idles great and throttle response is always quick .
My 2012 Toyota Camry LE was rough starting and not as responsive as it could've been. I poured a bit of AmsOil P. I. Into the tank and filled it up. Over the course of the week as I drove through that tank of fuel, I noticed the engine starting smoother and more quickly. The responsiveness was back too. P. I. Has always been a great product. It works well.
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