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Gumout 510022 Octane Booster Review

1

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Very good

Revainrating 4 out of 5  
Rating 
4.0
💨 Automotive Additives, 🛢️ Motor Oils & Fluids

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Description of Gumout 510022 Octane Booster

Boosts octane level in gas. Restores proper combustion. Reduces emissions. Stops knocks and pings. Oxygen sensor safe and safe for use in turbocharged and supercharged vehicles.

Reviews

Global ratings 1
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  • 4
    1
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  • 2
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  • 1
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Type of review

Revainrating 4 out of 5

Pretty good, works best in octane boosters

The 91 octane fuel I use in my supercharged 5.7 liter GTO has never been good enough to avoid engine knock under certain conditions. Gumout worked, but one bottle for a full tank wasn't enough. I had to bend it in half to completely eliminate the knock.

Pros
  • Slim design
Cons
  • Long delivery time