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⚡ Ignite your engine’s true potential with every drop!
104+ Octane Boost is a premium fuel additive designed to elevate octane levels, clean fuel injectors, and improve overall engine performance and fuel economy. Each 16 fl. oz. bottle treats up to 18 gallons of fuel, making it ideal for turbocharged V6 and V8 engines. Trusted since 1975 and safe for all catalytic converters and oxygen sensors, it delivers noticeable gains in power, throttle response, and acceleration for off-road enthusiasts and performance seekers alike.


| ASIN | B000LNUIUI |
| Best Sellers Rank | #219,520 in Automotive ( See Top 100 in Automotive ) #503 in Oil & Fluid Additives |
| Brand | 104+ |
| Brand Name | 104+ |
| Customer Reviews | 4.6 out of 5 stars 957 Reviews |
| Global Trade Identification Number | 00073905104067 |
| Included Components | 104+ (10406) Octane Boost - Boosts Octane And Cleans injectors To Improve Engine Performance - Improve Gas Mileage - 1 Bottle Treats Up To 18 Gallons, 16 fl. oz. |
| Item Type Name | 104+ (10406) Octane Boost - Boosts Octane And Cleans injectors To Improve Engine Performance - Improve Gas Mileage - 1 Bottle Treats Up To 18 Gallons, 16 fl. oz. |
| Item Weight | 386 g |
| Item weight | 386 g |
| Liquid Volume | 16 Fluid Ounces |
| Liquid volume | 16 Fluid Ounces |
| Manufacturer | Gold Eagle Co. |
| Material | Plastic |
| Model Number | 10406 |
| Number of Items | 1 |
| Part Number | 10406 |
| UPC | 030135104069 073905104067 |
| Unit Count | 16 Fluid Ounces |
S**S
104 Octane Boost WORKS!
I have been using 104 Octane Boost in all of my vehicles for years. It works great! Proven horsepower gains for sure!
R**O
Real performance in a bottle
I have tried a few octane boost formulations and I have found that 104+ is the first one to show actual physical gains that make a real difference on the road and on the dyno. For the price, even if you never get to test on a dyno, you will notice a huge difference in throttle response and acceleration once the bottle is fully mixed in the tank and running thought the fuel system. Now this is not for flex fuel vehicles, but does make a huge difference in Turbo powered V6 engines and V8 engines, you will be pleasantly surprised.
M**Y
مميز
منتج جيد انصح بشرائه
S**L
45 MPH punch
I run a 93 octane tune on my 2017 Camaro SS and a bottle of 104 really perks her up. And bonus MPG which I don’t care about but it tells me my car is burning good fuel. I run this in my 2013 Harley Davidson Breakout as well, same conclusion there. Quality product. I’ve used Lucas, stp, others. I like the 104 the best.
V**T
Meh, knock values are still high
Ive been logging knock/ping info and this product is not impressive at all.
Trustpilot
5 days ago
2 weeks ago