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Customer Rating

4.9

91% would recommend

  • 5 1138
  • 4 49
  • 3 21
  • 2 9
  • 1 9

AMSOIL P.i.® Performance Improver Gasoline Additive

Product code : CPICN-EA

4.9 star rating Read 1,226 reviews
Current price:
$23.69
Retail Price (CAD)

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AMSOIL P.i.® Performance Improver Gasoline Additive

4.9 star rating Based on 1,226 reviews
  • 5 star rating
    Better mileage
    By  Tu papi,  a  Verified Buyer  on  November 09, 2026
    I put it in all my cars i can note the difference after tank emptied , better mileage better throttle response and quieter engine My v6 suv jumped from 14 to19 mpg
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great cleaner
    By  RICH,  a  Verified Buyer  from  Texas  on  November 08, 2026
    Keeps injectors flowing great
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  • 5 star rating
    Makes my car run smoother!
    By  RIVER,  a  Verified Buyer  on  November 05, 2026
    After I added the gasoline improver to my tank, I noticed a huge difference! My car ran substantially smoother. I highly recommend everyone gets this product.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best Fuel Additive
    By  BILL,  a  Verified Buyer  from  GA  on  November 02, 2026
    Using this product along with the Amsoil oil change is the perfect combination for a great running vehicle.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 3 star rating
    New design of seal isn’t good
    By  DEVIN,  a  Verified Buyer  on  November 02, 2026
    Love the product, have been using in all my cars for almost 7 years now. Recently they change the seal on the bottle. Used to have a pull tap so the seal would come off in one piece, new seal is a downgrade.
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  • 5 star rating
    Exceptional
    By  PAT,  a  Verified Buyer  from  Chicago   on  November 02, 2026
    There is no other brand name that I will use!!!! AMSOIL IS THE BEST!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Review
    By  REX,  a  Verified Buyer  from  Belfair WA   on  November 01, 2026
    I commute 80+ miles a day and I need my cars fuel system in top shape. I notice it smooth out the cars idle and runs as it were new. Happy with the outcome.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Fuel cleaner
    By  PAUL M,  a  Verified Buyer  from  New Bern, NC  on  October 31, 2026
    This works great.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great products
    By  MATT,  a  Verified Buyer  on  October 27, 2026
    Great Products
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Works Great i gained power and milage
    By  JEFF,  a  Verified Buyer  from  Red Wing, MN 55066  on  October 25, 2026
    It works great cleaning injectors and improving horse power and milage!
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  • 5 star rating
    Difference made
    By  WOODY,  a  Verified Buyer  from  North Carolina  on  October 25, 2026
    Every time I use this product, it seems to increase my gas mileage.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Helps To Improve MPG
    By  MARIANO,  a  Verified Buyer  from  Illinois  on  October 23, 2026
    I've been using the PI performance improver for 6 months now and MPG has increased after each usage.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I have been using this for years.
    By  CONSTANTINE,  a  Verified Buyer  from  East coast   on  October 20, 2026
    I have been using this PI fuel treatment in all my gasoline engines. From lawnmowers to cars and trucks. It keeps them running smooth. My lawnmower was hard to start, and ran rough. I added this. Ran a tank of gas through it while mowing and changed the spark plug afterwards. Runs like a dream now. It sat for months. Started on 2nd pull
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Every 6 month clean out.
    By  TODD A.,  a  Verified Buyer  from  Southeast Texas  on  October 17, 2026
    We put this through every 6 months and at the oil change rotation to get it a little clean out of the system. It’s kept everything running clean in over 8 vehicles of ours now.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Works great
    By  FRANCISCO,  a  Verified Buyer  from  VA  on  October 15, 2026
    These products improves your vehicle
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Been using since AMSOIL came out with it
    By  SCOTT W,  a  Verified Buyer  from  Queen Creek, AZ.  on  October 12, 2026
    Been using since AMSOIL came out with it. Original dosage was 1 oz. per 10 gallons. I still use it that way to this day.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Pleased customer
    By  DALE,  a  Verified Buyer  from  Ohio   on  October 07, 2026
    I try to use this at least once every 5,000 miles to keep things clean. It seems to work better than other products I've used so I will be sticking with PI.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 3 star rating
    It seemed to help very little
    By  JOHN,  a  Verified Buyer  from  Cumberland, RI   on  October 05, 2026
    I really didn't notice much difference in performance after using this product
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Noticable improvements
    By  JAKE,  a  Verified Buyer  from  KY  on  October 05, 2026
    I have noticed improvements in gas mileage and in performance.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    You can feel the power
    By  CHRIS,  a  Verified Buyer  from  Merritt Island FLorida  on  October 05, 2026
    Amsoil IP really does help improve fuel efficiency. I can always feel the power increase once i use a bottle in a tank of gas.
    Bottom Line
    Yes, I would recommend this to a friend.
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