Top 10 NOS Octane Boosters
for March 2023

MOOZ's editors select recommendations independently. Purchases made through our links may earn us commissions.

1
9.9
SCORE
Motorkote Hyper Octane Boost, Octane Booster Fuel Treatment, Reduces Engine Knock 16 fl. oz, Single 1 Pack MK-10472-06

Motorkote Hyper Octane Boost

by MotorKote
What We like

Premium octane formula

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Product Features

  • Makes poor gas drivable and safe for engines
  • Fit type: Universal Fit
  • Highest legal (EPA approved) limit of MMT for octane
  • Recommended for all levels and grades of gasoline - safe for all engines and will not void warranties
  • Immediately reduces knock, pinging and hesitation
2
9.5
SCORE
Dyno-tab Octane Booster 6-tab Card (1)

Dyno-tab Octane Booster 6-tab Card (1)

by Chemplex Automotive Group, Inc.
What We like

Will not harm Catalytic Converter or Oxygen Sensor

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Product Features

  • High Performance Racing Formula
  • Octane Booster
  • Beats the bottle boosters
  • Beats the bottle boosters
3
9.1
SCORE
NOS (12010-6PK) Racing Formula Octane Booster - 12 oz., (Pack of 6)

NOS (12010-6PK) Racing Octane Formula Booster

by NOS
What We like

Protects against carbon deposits in the fuel injectors and combustion chamber

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Product Features

  • Improves gas mileage, eliminates knocks, pings and hesitation
  • Blended with MMT and performance enhancing Powertane, along with nitro methane and unique lubricants specially developed for high performance engines
4
9
SCORE
Permatex NOS 12003 Max Street Octane Booster - 16 oz.

Permatex NOS 12003 Street Max Octane Booster

by Permatex
What We like

Blended with the strongest MMT concentration allowed by law for street use

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Product Features

  • Improves gas mileage, eliminates knocks, pings, and hesitation
  • Protects against carbon deposits in the fuel injectors and combustion chamber
5
8.8
SCORE
NOS Racing Formula Octane Booster 355 ml

NOS Racing Formula Octane Booster 355 ml

by NOS
What We like

Increases octane effect up to 6 full octane numbers (60 points)

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Product Features

  • Number: 071322
  • Volume: 355 ml
  • Uniquely blended with MMT and performance enhancing Powertane
  • NOS performance for the serious enthusiast
6
8.8
SCORE
Johnsen's 4688 Octane Booster - 12 oz.

by Johnsen's
What We like

Octane Booster, 12 oz. (4688)

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7
8.5
SCORE
Klotz KL-628 Octane Boosters

Klotz KL-628 Octane Boosters

by Klotz
What We like

Stabilizes flame front and controls burn speed

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Product Features

  • Tetraethyl lead substitute for added lubricity
  • Increases pump gasoline octane up to 10 numbers
8
8.1
SCORE
BOOSTane Premium Octane Booster (4 Pack)

BOOSTane Premium Octane Booster (4 Pack)

by BOOSTane
What We like

Anti-carbon build up

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Product Features

  • LOWER Compression Engines and 2 Stroke
  • Cleaning agents
  • Proprietary chelated carrier
  • Anti-corrosion against ethanol
9
8.1
SCORE
Yamalube 4 2-R 32 oz. Bottles and 1 Bonus Rocket Fuel 1 oz. Tube Octane Booster

Yamalube 4 2-R 32 oz. Bottles and 1 Rocket Bonus Fuel 1 oz. Tube Octane Booster

by Yamalube
What We like

4 Yamalube 2-R 32 oz. bottles & 1 Rocket Fuel Details Yamalube 2-R is a high-performance 2-stroke blend developed to stand up to high temperatures, rigorous demands & stress of competition engines. Used exclusively by the two-stroke Yamaha Factory Race Team riders. Special base stocks protect against wear and breakdown, low carbon deposits on pistons, rings and exhaust ports, reduces friction that allows for maximum horsepower. Developed to meet the requirements of 2-stroke off road

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10
8.1
SCORE
Maxima 83916 Hi-Test Octane Booster - 16 oz. Bottle

Maxima 83916 Hi-Test Octane Booster

by Maxima
What We like

Hi-Test should be used in concentrations of one to four ounces per gallon of gasoline, one ounce per gallon raises the effective octane number approximately four points, depending on the base gasoline octane

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Product Features

  • The use of Hi-Test in your gasoline will eliminate pinging and knocking and the potentially destructive results of them allowing for higher compression ratios and therefore more horsepower
  • For racing or very high compression engines, or very low quality fuel, higher concentrations of Hi-Test may be required
  • Hi-Test will suppress detonation and pre-ignition by modifying the burn rate and increasing the auto-ignition temperature of the air/fuel mixture
  • Hi-Test is an all organic concentrated octane booster containing no metal (lead, manages or phosphorus) compounds, legal for all types of competition, and readily mixes with all gasoline as well as alcohol or nitro mixtures

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