STP High Mileage Fuel Injector & Carburetor Cleaner - 5.25 FL OZ (2 Count)
STP High Mileage Fuel Injector & Carburetor Cleaner - 5.25 FL OZ (2 Count)
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STP High Mileage Fuel Injector & Carburetor Cleaner - 5.25 FL OZ (2 Count)

4.7 stars out of 450 reviews
(4.7)|
450 ratings
STP High Mileage Fuel Injector & Carburetor Cleaner - 5.25 FL OZ (2 Count)STP High Mileage Fuel Injector Carburetor Cleaner 5 25 FL OZ 2 Count24 pack STP High Mileage Fuel Injector Carburetor Cleaner 5 25 FL OZ 2 Count2 pack STP High Mileage Fuel Injector Carburetor Cleaner 5 25 FL OZ 2 Count12 pack STP High Mileage Fuel Injector Carburetor Cleaner 5 25 FL OZ 2 Count6 pack STP High Mileage Fuel Injector Carburetor Cleaner 5 25 FL OZ 2 Count
Pack Size:Single

Key item features

  • Dual Pack: Includes two 5.25 fluid ounce bottles of STP High Mileage Fuel Injector & Carburetor Cleaner Treatment.
  • Deposit Removal: Features deposit-control additives that help remove deposit buildups in the fuel intake system, contributing to gas savings.
  • Engine Efficiency: Contains a friction modifier that combats upper cylinder friction, allowing the engine to operate more efficiently.
  • Performance Enhancement: Helps prevent common issues like hard starts, lost acceleration, and rough idling for improved vehicle performance.
  • High Mileage Formulation: Specifically formulated for vehicles with over 75,000 miles and is compatible with all gas engines, including cap-less systems.
  • Regular Application: Designed for regular addition to the fuel tank when refueling to maintain a clean fuel injector and carburetor.
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Current price is $5.2850.3 ¢/fl oz
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STP High Mileage Fuel Injector & Carburetor Cleaner - 5.25 FL OZ (2 Count) $5.28 50.3 ¢/fl oz

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4.7 out of 5 Stars. 450 reviews

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Customer ratings & reviews

4.7 out of 5 stars
stars450 ratings103 reviews
How item rating is calculated
  1. 5 stars82% (367)
  2. 4 stars11% (51)
  3. 3 stars3% (15)
  4. 2 stars1% (4)
  5. 1 star3% (13)

Reviews summary

Pros
  • : Offers good value in multi-packs.
  • : Operates without internal issues.
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Showing 1-3 of 103 reviews

Nov 3, 2025
Colleen
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

keeps your high mileage car fuel efficient

love that this product helps to keep my 2006 running smoothly and i even get better mpg than the manufacturer stats. I've got 375,000 miles on my vehicle so far and this product helps to keep me racking up those miles!

Helpful?1BYXSXZ1Z4IY19897929
Jun 10, 2025
Cara
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Extends car life

My mom used this in her car and got way more miles out of it than I got out of my previous car so I'm using it in my current car. I add it about every other time that I fill up with gas.

Helpful?1BYXSXZ1Z4IY19897929
Feb 3, 2025
Mike
5 out of 5 stars review

Verified Purchase

I highly recommend this product

I had what I was told was a "fuel injector failure" at 90k miles; then another one at 125k miles. I then started using STP High Mileage Fuel Injector %26 Carburetor Cleaner, at first one bottle at every fill up; then I switched to one bottle every other fill-up. I have now reached 181k miles without any further failures. Also, all of my pollution control valves are original equipment. Lucky? Perhaps, but I don't believe in 'luck' when it comes to engine performance. I highly recommend this product if you want your vehicle to last.

Helpful?1BYXSXZ1Z4IY19897929