STP Super Concentrated Gas Treatment - 5.25 fl oz Bottle
STP Super Concentrated Gas Treatment - 5.25 fl oz Bottle
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STP Super Concentrated Gas Treatment - 5.25 fl oz Bottle

4.7 stars out of 415 reviews
(4.7)|
415 ratings
STP Super Concentrated Gas Treatment - 5.25 fl oz BottleSTP Super Concentrated Gas Treatment 5 25 fl oz Bottle24 pack STP Super Concentrated Gas Treatment 5 25 fl oz Bottle12 pack STP Super Concentrated Gas Treatment 5 25 fl oz Bottle2 pack STP Super Concentrated Gas Treatment 5 25 fl oz Bottle6 pack STP Super Concentrated Gas Treatment 5 25 fl oz Bottle
Pack Size:Single

Key item features

  • High Cleaning Power: Contains twice the cleaning agents as regular STP Gas Treatment to help improve fuel efficiency.
  • Removes Deposits: Dissolves carbon, gum, and varnish deposits in the fuel injector and carburetor for easy auto care.
  • Prevents Freezing: Removes water to help keep your fuel line from freezing, ensuring quality at-home car care.
  • Regular Use: Add with every other gas tank fill-up; works with cap-less gas systems.
  • Fuel System Cleaner: Formulated to restore lost fuel efficiency and improve gas quality in your vehicle.
  • Large Coverage: Each 5.25 fl oz bottle treats up to 21 gallons of gas.
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Current price is $2.9355.8 ¢/fl oz
Price when purchased online
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Customer ratings & reviews

4.7 out of 5 stars
stars415 ratings175 reviews
How item rating is calculated
  1. 5 stars80% (330)
  2. 4 stars15% (62)
  3. 3 stars4% (16)
  4. 2 stars1% (3)
  5. 1 star1% (4)

Reviews summary

Pros
  • : Offers excellent value considering the cost.
  • : Lasts for several weeks with a small bottle.
  • : Allows for convenient tank access and refueling.
  • : Provides improved performance with reduced noise.
Neutral
  • : Effective for some, inconsistent for others.
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Showing 1-3 of 175 reviews

Feb 15, 2026
Dusty
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Amazing STP Performance of Gas Treatment

I've been using STP gas treatment for 14 years and find the product Amazing and Outstanding.It not only helps eliminate water from your fuel tank and system but you actually get more power from its use. Just follow the instructions on the label and see for yourself.I can also get my car started with 1 turn of my Key,in Very Very,Very Cold Weather.

Helpful?2192YGX1M70E16817400
Feb 2, 2026
David
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I have older cars %26 needed to pass the smog test, so I tried it for the month before the tests %26 they both passed the smog tests, one car is 40 %26 the other is 20 years old!

Helpful?2192YGX1M70E16817400
Dec 14, 2025
Minifancier
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

For this cold weather that is here now, already put one in my cars gas tank.

Helpful?2192YGX1M70E16817400