We may earn revenue from the products available on this page and participate in affiliate programs. Learn more ›
When it comes to improving your car's performance and protecting it from untimely damage, an octane booster can make a world of difference. In case you're unfamiliar with octane boosters, they're designed to improve fuel stability under high compression by increasing the octane rating of the fuel you're getting at the pump. While they certainly aren't necessary for all cars, those that call for a higher octane level than is readily available will see significant improvements in performance and efficiency when octane boosters are used.
If you're in the market for a new octane booster, we've got you covered with our in-depth review of some of the best octane boosters on the market. Our handy buying guide will teach you exactly what to look for to ensure you're getting a top-quality additive that won't let you down.
Torco F500010TE Unleaded Fuel Accelerator
- Can be added to other additives to create a customized blend
- Capable of servicing a wide range of engines
- Safe to use on most oxygen sensors and catalytic converters
- Offers a clean fuel burn
- Its sensitivity to light makes it difficult to store
- Could cause irritation if exposed to skin
- Pricey for regular use
- Not suitable for old or two-stroke engines
STP Octane Booster
- One bottle is capable of boosting up to 42 gallons of gasoline
- Straightforward and easy to use
- Compatible with most cap-less fuel systems
- This octane booster is not for use with diesel engines
- Many motorcycle users report not noticing any improvement in performance with this particular product
Royal Purple Max Boost
- Formula enhances the overall engine performance, reducing knocking and pinging
- Stabilizes the fuel, reduces emissions, and cleans the deposits
- Completely safe for the vehicle engine
- Not street-legal
- Might stain the surfaces and shouldn't be exposed to sunlight
- Must be stored in a dry and dark place
- Best Overall: Torco F500010TE Unleaded Fuel Accelerator
- Best value: STP Octane Booster
- Honorable Mention: Royal Purple Max Boost
- Best Overall Runner Up: VP Racing Fuels 2855 Madditive Octanium Octane Booster
- Best Multi-Pack: BOOSTane Professional Octane Booster
Octane boosters may be something we're familiar with, but that doesn't mean we didn't rely on some critical research when building this guide. We made sure to read reviews and listen to what consumers had to say. This way, we could compare real-world use against what leading manufacturers claim to verify anything on our list is worth mentioning. Of course, consumer reviews are also how we were able to check ourselves to ensure no bias is factored into the list below.
Best Octane Boosters Reviews & Recommendations
Best Overall Runner-UpCheck Latest Price
Our Verdict on the Best Octane Boosters
Torco F500010TE Unleaded Fuel Accelerator is tough to beat. This octane booster can serve a wide range of engines and boost your car’s octane levels as high as 102. It’s also compatible with oxygens sensors and catalytic converters. For a budget-friendly option that still delivers high-quality, reliable results, consider STP Octane Booster.
What to Consider When Shopping for Octane Boosters
Octane boosters are simple, and you'll be in good shape with any of the products above. However, the more you know, the better. This is why we've put together this quick buying guide to help you better understand where your money is going.
Octane Points Added
Depending on the Octane booster product you purchase, each will raise your fuel’s rating to a particular degree. If you are looking to get your vehicle to a very high-performance rating, you will need to shop for an octane booster that offers this. In most cases, it translates to high costs.
There are several ways to obtain the desired octane boosting effect. Quite a few chemicals will be able to achieve the same result, but unique effects normally accompany each other. It’s important to check this information before buying an octane booster since it could affect your vehicle.
Octane boosters may also feature detergents and other additives to help keep your engine clean. While not necessary to performance, these additional traits can also contribute to long engine life. If that's a primary concern, it's essential to pick a product that offers them to you, as some are designed solely with performance in mind.
Octane Booster Pricing
Octane boosters can cost anywhere from $10 to $100. The quality of the product and how much it achieves will be the largest factors driving the cost alongside quantity. Speaking of quantity, buying multi-packs will also significantly drive up the end price.
Q: How does octane affect engine performance?
A good octane level ensures that fuel in your engine’s cylinders ignites when it’s supposed to so it can provide maximum engine performance. It contributes to greater stability under compression to decrease spark knock, or predetonation, that plagues high compression engines running pump gas. It only works for those engines, though, and can actually reduce performance for engines that require octane levels provided by pump gas.
Q: What do octane numbers mean?
The octane rating is the fuel’s ability to prevent pre-detonation or combustion before the spark plug is ignited. The higher the octane number, the more compression the fuel can withstand before igniting or detonating.
Q: What is the proper way to use octane boosters?
The ideal way to use an octane booster is to add it to your car’s fuel tank on every fuel fill-up. Some people only choose to use it a few weeks before a big race or event when peak performance will be critical, but its effects are maximized with prolonged and continued use.
Why Trust Us
Our reviews are driven by a combination of hands-on testing, expert input, “wisdom of the crowd” assessments from actual buyers, and our own expertise. We always aim to offer genuine, accurate guides to help you find the best picks.Learn more