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popularhtp182 | Staff posted Today 01:50 PM
popularhtp182 | Staff posted Today 01:50 PM

12-Oz STP Direct Injection Fuel Injector Cleaner $6.50 w/ S&S + Free Shipping w/ Prime or on $35+

$6.50

$14

53% off
Amazon
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Amazon [amazon.com] has 12-Oz STP Direct Injection Fuel Injector Cleaner on sale for $6.84 - 5% when you check out via Subscribe & Save = $6.50. Shipping is free w/ Prime or on $35+.


Product Description from Amazon:
  • One 12 fl oz bottle of STP Complete Fuel System Cleaner for a variety of gasoline engines
  • This car fuel treatment has 2x the amount of cleaning agents versus leading premium gasoline
  • PEA and PIBA detergents get rid of deposits to keep your system clean and fuel efficient
  • Fuel system cleaner helps inhibit corrosion and restores engine performance for convenient and versatile car products
  • Use this complete STP fuel system cleaner at every oil change or every 4,000 miles
  • Jet fuel creates a high-quality carrier for the active ingredients in this auto cleaner
  • Fuel system cleaner that is compatible with all gasoline engines, including turbo, direct inject and hybrid engines
Community Notes
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Deal Details
Community Notes
About the Poster
Amazon [amazon.com] has 12-Oz STP Direct Injection Fuel Injector Cleaner on sale for $6.84 - 5% when you check out via Subscribe & Save = $6.50. Shipping is free w/ Prime or on $35+.


Product Description from Amazon:
  • One 12 fl oz bottle of STP Complete Fuel System Cleaner for a variety of gasoline engines
  • This car fuel treatment has 2x the amount of cleaning agents versus leading premium gasoline
  • PEA and PIBA detergents get rid of deposits to keep your system clean and fuel efficient
  • Fuel system cleaner helps inhibit corrosion and restores engine performance for convenient and versatile car products
  • Use this complete STP fuel system cleaner at every oil change or every 4,000 miles
  • Jet fuel creates a high-quality carrier for the active ingredients in this auto cleaner
  • Fuel system cleaner that is compatible with all gasoline engines, including turbo, direct inject and hybrid engines

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+7
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Price Intelligence

Model: STP Direct Injection Fuel Injector Cleaner, Advanced Synthetic Technology Fuel Cleaner Dissolves Hardened Deposits that Accumulate on Injectors, 12 Oz, STP

Deal History 

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Post Date Sold By Sale Price Activity
12/03/25Amazon$6.50 popular
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12/03/25Amazon$6.31
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Sort: Lowest to Highest | Last Updated 12/10/2025, 11:10 PM
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Amazon$13.31

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Today 02:57 PM
243 Posts
Joined Dec 2014
olzootToday 02:57 PM
243 Posts
Snake oil?
2
Today 03:26 PM
74 Posts
Joined Oct 2014
CameronN7188Today 03:26 PM
74 Posts
Doesn't Walmart sell a store-brand version in a smaller size of this product for $2-3? Curious why anyone would want to buy this larger size.
Today 03:46 PM
6 Posts
Joined Aug 2020
CrimsonSnailToday 03:46 PM
6 Posts
The most effective fuel system cleaner products use highly concentrated polyetheramine ("PEA") detergents to clean clogged fuel injectors and restore maximum injector flow. Some fuel system cleaner products do not have it at all and some fuel system cleaner products have more PEA than others. Some of the highly recommended products containing PEA are - Royal Purple Max Clean Fuel System Cleaner, Liqui Moly Jectron Fuel Injection Cleaner, Rislone Gas Fuel System Treatment, and others.

I took a look at Wal*Mart's SuperTech branded products when I was in the store a couple of weeks ago and did not see a PEA endorsement on the bottle. I wound up picking up a bottle of Rislone Gas Fuel System Treatment on clearance at AutoZone for $8.

I have also seen several suggestions to use any of these products in a more highly concentrated manner than suggested by adding it when there's only a quarter tank of fuel remaining and running it down to empty before adding more fuel to dilute the cleaning product. You're not going to blow up your motor with any of these products.

All that said, in this case more than others.. the usual "your mileage may vary" disclaimer is pretty accurate when it comes to these products.
1
Today 04:35 PM
29 Posts
Joined Nov 2023
FeistyBike8803Today 04:35 PM
29 Posts
Quote from CrimsonSnail :
The most effective fuel system cleaner products use highly concentrated polyetheramine ("PEA") detergents to clean clogged fuel injectors and restore maximum injector flow. Some fuel system cleaner products do not have it at all and some fuel system cleaner products have more PEA than others. Some of the highly recommended products containing PEA are - Royal Purple Max Clean Fuel System Cleaner, Liqui Moly Jectron Fuel Injection Cleaner, Rislone Gas Fuel System Treatment, and others.

I took a look at Wal*Mart's SuperTech branded products when I was in the store a couple of weeks ago and did not see a PEA endorsement on the bottle. I wound up picking up a bottle of Rislone Gas Fuel System Treatment on clearance at AutoZone for $8.

I have also seen several suggestions to use any of these products in a more highly concentrated manner than suggested by adding it when there's only a quarter tank of fuel remaining and running it down to empty before adding more fuel to dilute the cleaning product. You're not going to blow up your motor with any of these products.

All that said, in this case more than others.. the usual "your mileage may vary" disclaimer is pretty accurate when it comes to these products.
Thank you for the information. I have used Royal Purple based on endorsements I've read. Good to know what to look for.

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