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Customer Ratings & Reviews

AMSOIL P.i.® Performance Improver Gasoline Additive

Product code : APICN-EA

4.9 star rating Read 1,144 reviews

Customer Rating

4.9

91% would recommend

  • 5 1060
  • 4 47
  • 3 19
  • 2 9
  • 1 9

AMSOIL P.i.® Performance Improver Gasoline Additive

4.9 star rating Based on 1,144 reviews
  • 5 star rating
    Gasoline additive
    By  ED,  a  Verified Buyer  from  Texas  on  April 09, 2025
    After adding and driving a few miles, I noticed my engine went to 4 cyl operation and stayed there for quite a while. The engine seems more responsive and continues to run on 4 cylinder operation more frequently than in the past - better milage.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome
    By  ANTHONY,  a  Verified Buyer  on  April 08, 2025
    With product added to my vehicle I’m getting better than manufacturers stated mileage per gallon.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great
    By  CHRISTOPHER,  a  Verified Buyer  from  Louisiana  on  April 07, 2025
    I use every 3 tanks
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good quality!
    By  BRIAN,  a  Verified Buyer  on  April 04, 2025
    Made a difference!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    CODE "Check engine"
    By  RICHARD,  a  Verified Buyer  on  April 01, 2025
    J'avais 2 codes "check engine" P0420 & P0430, faisant rapport au catalyseur et oxygen sensor qui se sont effacés après un seul traitement. De mon côté ce fut bénéfique :)
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Noticeable difference
    By  KEVIN,  a  Verified Buyer  from  PA  on  April 01, 2025
    Very noticeable difference in the way my car 2014 ford taurus sho runs with a 2 mpg so far
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  • 5 star rating
    Excellent product
    By  JEROME,  a  Verified Buyer  from  Lake Charles la  on  March 31, 2025
    Great product
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 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
    Running Smooth
    By  ROBERT,  a  Verified Buyer  from  Clearwater FL  on  March 31, 2025
    We tend to keep our cars a long time so this product helps to keep them running smooth.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    GREAT PRODUCT!
    By  TED,  a  Verified Buyer  from  NORTHEAST  on  March 29, 2025
    GREAT PRODUCT! I use it on every fourth fill up. I believe it helps with performance as well as keeping it running smooth and clean.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Product
    By  JAMES,  a  Verified Buyer  from  Virginia  on  March 27, 2025
    Great stuff
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Noticeable improvement
    By  JAKE,  a  Verified Buyer  from  KY  on  March 27, 2025
    Noticeable improvement and piece of mind protection.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Product
    By  TIMOTHY,  a  Verified Buyer  from  NC  on  March 25, 2025
    Anytime the oil change is due
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I use it after every oil change
    By  LIIBAN,  a  Verified Buyer  from  Madera, CA  on  March 24, 2025
    I use it after every oil change. Works great.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    All
    By  ARIC,  a  Verified Buyer  on  March 23, 2025
    I have used Amsoil products for over 20 yrs now. All my boats, cars, trucks, snowmobiles, lawn equipment, if it uses oil and I own it it will have Amsoil. As long as this company continues to outperform in product perfomance and customer services I will continue to be a dedicated customer. 5 stars! And to think I got nothing to write this review Good job Amsoil! keep it going!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Used regularly in my gas engines
    By  GIOVANNI,  a  Verified Buyer  from  BadLands Alberta   on  March 23, 2025
    I add product annually. I noticed a good improvement in performance and fuel economy immediately.
    Bottom Line
    No, I would not recommend this to a friend.
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  • 5 star rating
    Love it!
    By  JEFFREY,  a  Verified Buyer  on  March 22, 2025
    Love this product, started using at every pil change. Smoother idea and improved gas mileage.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    It works!
    By  THOMAS,  a  Verified Buyer  from  Denver   on  March 21, 2025
    This stuff helps keep up maintenance on your vehicle and just adds that extra step of preventative maintenance. I had a gummed up injector and this stuff cleaned it up right away.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good stuff
    By  DAVE,  a  Verified Buyer  from  Illinois  on  March 18, 2025
    I got it because i liked what Alex at LSC said. Didnt effect my car to much, but it is newer. My wifes however, it improved nicely
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Pi performance improver
    By  JASON,  a  Verified Buyer  on  March 16, 2025
    Better fuel economy after using
    Bottom Line
    Yes, I would recommend this to a friend.
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