Hero image 0 of STP Super Concentrated Gas Treatment - 5.25 fl oz Bottle, 0 of 9
Overall pick
STP Super Concentrated Gas Treatment - 5.25 fl oz Bottle
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.
Generated by AI
Specs
- Automotive additive typeFuel Treatment
- Product lineGas Treatment
- Product net content parent5.25 Fluid Ounces
- Compatible carsUniversal
- Vehicle fitment typeUniversal
- MaterialHydrocarbons, Solvent
Reviews summary
Pros
- : Offers excellent value considering the cost.
- : Lasts for several weeks with a small bottle.
- : Provides improved performance with reduced noise.
Neutral
- : Effective for some, inconsistent for others.
Generated by AI
Current price is USD$2.9355.8 ¢/fl oz
Price when purchased online
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About this item
Product details
STP Super Concentrated Gas Treatment - 5.25 FL OZ Bottle
Restore lost fuel efficiency with STP Super Concentrated Gas Treatment. Formulated with twice the cleaning agents as regular STP Gas Treatment, this fuel additive goes to work quickly to improve the quality of gas in your vehicle. The cleaning agents in the fuel treatment help to dissolve fuel injector and carburetor deposits, including carbon, gum and varnish to improve performance. This gas additive is also a fuel water remover to help prevent a frozen fuel line. Use this fuel system cleaner with every other gas tank fill. This super concentrated formula is compatible with cap-less gas systems. Each bottle treats up to 21 gallons of gas.
- One 5.25 fl oz bottle of STP Super Concentrated Gas Treatment for automotive fuel systems
- Contains twice the cleaning agents as regular STP Gas Treatment to help improve fuel efficiency
- Dissolves carbon, gum and varnish deposits in the fuel injector and carburetor for easy auto care
- This gas treatment removes water to help keep your fuel line from freezing for quality at-home car care
- Add with every other gas tank fill-up—fuel treatment works with cap-less gas systems
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. Â
Specifications
Automotive additive type
Fuel Treatment
Product line
Gas Treatment
Product net content parent
5.25 Fluid Ounces
Compatible cars
Universal
Warranty
Warranty information
All products come with a 90 Day, or longer, manufacturer warranty
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
WARNING: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.govState Chemical Disclosure
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Offers excellent value considering the cost.
- : Lasts for several weeks with a small bottle.
- : Provides improved performance with reduced noise.
Neutral
- : Effective for some, inconsistent for others.
Generated by AI
Customer images
+83 images
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Showing 1-3 of 174 reviews
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
Dec 7, 2025
Kevin
Item details
Multipack quantity: 1
5 out of 5 stars review
Verified Purchase
Repeat customer, good product
Helpful?2192YGX1M70E16817400
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