The 6 Best Octane Boosters

Updated March 01, 2017 by Brett Dvoretz

6 Best Octane Boosters
Best High-End
Best Mid-Range
Best Inexpensive
We spent 26 hours on research, videography, and editing, to review the top choices for this wiki. If you're looking to optimize your engine performance, octane boosters are the key to a whole new world. They make the internal combustion process more efficient, which in turn enhances compression and produces a smoother running engine. Whether you are on the hunt for a booster for racing purposes or to make your everyday car run better, you'll find what you need here. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best octane booster on Amazon.

6. VP Racing Fuels 2855

VP Racing Fuels 2855 is an octane concentrate made specifically for off-road racing that will deliver an increase up to 8 numbers. This is a lead substitute, though, that is not meant for vehicles equipped with O2 sensors or catalytic converters.
  • can improve throttle response
  • ideal for naturally aspirated cars
  • expensive and doesn't last very long
Brand VP Racing Fuels
Model pending
Weight 2.4 pounds
Rating 4.4 / 5.0

5. STP 78574

STP 78574 makes a decent choice to remove build-up that might be affecting your car's performance as it also cleans your fuel intake system. It can be used every time you fill up your tank, but it doesn't raise octane levels very high.
  • works with cap-less fuel systems
  • can reduce engine knocking
  • slightly improves horsepower
Brand STP
Model 78574
Weight 8 ounces
Rating 4.4 / 5.0

4. 104+ Boost

For an inexpensive way to improve gas mileage, power and acceleration, look to 104+ Boost. It's safe to use in all types of gasoline blends, including ethanol, but it's only intended for off-road use, so it wouldn't be suitable for everyday driving.
  • doesn't have an expiration date
  • reduces acceleration hesitation
  • doesn't harm spark plugs
Brand 104+
Model 10406
Weight 13.6 ounces
Rating 4.0 / 5.0

3. Lucas 10026

Lucas 10026 is compatible with turbochargers, O2 sensors and catalytic converters and is proven to yield three times more boost than its competitors. It comes in a slim 15-ounce bottle that is easy to store underneath a seat.
  • improves fuel economy
  • provides additional torque
  • doesn't produce contaminants
Brand Lucas
Model LUC10026
Weight 14.4 ounces
Rating 4.8 / 5.0

2. Klotz KL-602

Klotz KL-602 is a highly sought after tetraethyl lead substitute that can greatly enhance your acceleration and low end throttle response. It also works like a charm at preserving gasoline for up to 16 months and absorbing moisture in your fuel system.
  • works well as a carburetor cleaner
  • comes in a pint or gallon size
  • helps stabilize gas burn speed
Brand Klotz
Model pending
Weight 1.1 pounds
Rating 4.7 / 5.0

1. Torco Accelerator

If you want to turn your premium pumped gas into something close to racing fuel, check out Torco Accelerator. This little miracle worker can raise the octane level to as high as 105, while allowing the fuel to burn completely for maximum efficiency.
  • can make vehicles idle smoothly
  • ideal for new and old cars
  • helps to prevent engine damage
Brand Torco Accelerator
Model 16410
Weight pending
Rating 4.8 / 5.0

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Last updated on March 01, 2017 by Brett Dvoretz

A wandering writer who spends as much time on the road as behind the computer screen, Brett can either be found hacking furiously away at the keyboard or perhaps enjoying a whiskey and coke on some exotic beach, sometimes both simultaneously, usually with a four-legged companion by his side. He hopes to one day become a modern day renaissance man.

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