STP Octane Booster, Automotive Additive (12 Fluid Ounces)
STP Octane Booster, Automotive Additive (12 Fluid Ounces)
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STP Octane Booster, Automotive Additive (12 Fluid Ounces)

4.6 stars out of 90 reviews
(4.6)|
90 ratings
STP Octane Booster, Automotive Additive (12 Fluid Ounces)STP Octane Booster Automotive Additive 12 Fluid Ounces
Size:12 fl. oz, 1 Pack

Key item features

  • Octane Boost: This automotive additive boosts octane and restores engine performance, helping to regain lost power and acceleration.
  • System Cleaner: The formula actively cleans the fuel intake system, preventing the accumulation of deposits and contributing to fuel efficiency.
  • Engine Protection: It effectively reduces engine knocking and pinging, and lessens the need for higher octane fuel.
  • Advanced Formulation: Made with Jet Fuel as a high-quality carrier for active ingredients, it also incorporates MMT and Synthetic Technology.
  • Broad Compatibility: Suitable for any gas engine, including cap-less systems, one 12 fl. oz. bottle treats up to 28 gallons of gasoline.
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Customer ratings & reviews

4.6 out of 5 stars
stars90 ratings90 reviews
How item rating is calculated
  1. 5 stars71% (64)
  2. 4 stars21% (19)
  3. 3 stars4% (4)
  4. 2 stars2% (2)
  5. 1 star1% (1)

Reviews summary

Pros
  • : Provides extra power during specific driving situations.
  • : Restores lost power and acceleration in gasoline engines.
  • : Restores engine power during highway or uphill driving.
  • : Has little to no noticeable odor.
  • : Improves speed and performance.
Neutral
  • : Offers organized storage, but may lack ergonomic considerations.
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Showing 1-3 of 90 reviews

Jul 13, 2025
michaelb264_351
5 out of 5 stars review

Increased gas economy

[This review was collected as part of a promotion.] The packaging was solid and durable. You get what you pay for in this, as you will see the difference in how your vehicle burns fuel. I didnt pay attention to the smell but it couldn't have been too horrible if I did t pay attention to it. I have a nose like a rabbit.

Review from influenster.com
Helpful?1RBH1YONPQU5169205956
Jun 23, 2025
carolynjordanself_9734
5 out of 5 stars review

Easy to use.

[This review was collected as part of a promotion.] Very easy to use, just remove plastic packaging, remove cap and safety seal, and insert into your vehicle's tank. The bottle has a long slim neck, so it's very easy to add to your gas tank. I honestly didn't notice any sort of scent. This is like giving my truck and energy drink.

Review from influenster.com
Helpful?1RBH1YONPQU5169205956
Jun 26, 2025
pamelaf_1285
5 out of 5 stars review

A quick, affordable boost that noticeably improves

[This review was collected as part of a promotion.] I used the STP Octane Booster in my older sedan that was starting to show signs of sluggish acceleration. After adding one bottle to a full tank, I noticed a noticeable improvement in performance, especially during highway merging and uphill climbs. The car ran more smoothly, and I experienced a slight increase in fuel efficiency over the next couple of refuels. The packaging is compact and easy to pour without spilling, and there's no overwhelming chemical scent. For the price, it offers great value and a quick way to boost engine performance between tune-ups.

Review from influenster.com
Helpful?1RBH1YONPQU5169205956