(12 pack) Gumout Octane Boost, 10 oz- 510022W
(12 pack) Gumout Octane Boost, 10 oz- 510022W
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(12 pack) Gumout Octane Boost, 10 oz- 510022W

Pack Size:12 Pack

Key item features

  • Octane Enhancement: Raises gasoline octane levels to restore proper combustion and performance, preventing early fuel ignition.
  • Performance Maximizer: Stops knocks and pings, maximizing engine performance and preventing power losses.
  • Usage Instructions: Add the entire 10 oz bottle to a nearly empty gasoline tank, then fill with up to 15 gallons of gasoline.
  • Regular Application: Recommended for use with every fill-up to maintain optimal engine function and fuel economy.
  • Engine Safety: Oxygen sensor safe and suitable for use in turbocharged and supercharged vehicles.
  • Warranty Protection: Will not void OEM or manufacturer warranties, ensuring safe application.
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Current price is $44.8837.4 ¢/fl oz
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  • 12-pack of Gumout Octane Boost, 10 oz- 510022W
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4.7 out of 5 stars
stars410 ratings130 reviews
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Reviews summary

Pros

  • : Offers similar value to comparable products.

Neutral

  • : Can be efficient and smooth, but may idle roughly in some cases.
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Showing 1-3 of 130 reviews

Jan 21, 2026
Walmart customer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Don't buy premium fuel, save money buying regular grade and adding octane booster. You'll save money. No matter what grade or fuel you buy at a given station they all have the same additive package, the only difference is the amount of octane. If you buy 8 or more gallons at a time you'll save money buying regular grade and adding this booster. It works great. No pinging and no power loss.

Helpful?40SNNW06JQ8J15615955160
Feb 6, 2026
Candice
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Put wrong gas in Mercedes and check engine light came on, rough idling, could not drive. Ordered this, delivered next morning. Put in tank and let car sit over night. Told it would work its way through system even without starting car. It was a rough prolonged start and then started up and running perfectly. I am in shock!

Helpful?40SNNW06JQ8J15615955160
Mar 23, 2026
John
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Price of gas due to conflict and price gouging so high this helps make it a reality to use low octane gas in high octane engines %26 still be affordable.

Helpful?40SNNW06JQ8J15615955160