SKU: 7549877782

Fuel Factory F 109 UO Oxygenated Fuel 103 Octane – High Performance All-Purpose Race Fuel

Sale price$103.50 Regular price$115.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Fuel Factory F 109 UO Oxygenated Fuel 103 Octane – High Performance All-Purpose Race FuelOne Fuel. Endless Applications. Fuel Factorys F 109 UO is one of the most versatile race fuels in the entire lineup. This unleaded, oxygenated fuel is engineered to deliver consistent performance, strong power gains, and tuning flexibility across a wide range of applications. With a RON of 111, F 109 UO has been tested in everything from small block drag engines and NA racing setups to boosted street cars and high horsepower buildsmaking it a true all

One Fuel. Endless Applications.

Fuel Factory’s F 109 UO is one of the most versatile race fuels in the entire lineup. This unleaded, oxygenated fuel is engineered to deliver consistent performance, strong power gains, and tuning flexibility across a wide range of applications.

With a RON of 111, F 109 UO has been tested in everything from small block drag engines and NA racing setups to boosted street cars and high-horsepower builds—making it a true all-around performer.

Why Choose Fuel Factory F 109 UO?

  • Extremely Versatile Fuel
    Works across naturally aspirated, boosted, and race applications
  • Oxygenated for Increased Power
    Improves combustion efficiency and throttle response
  • High Octane Performance
    Supports aggressive tuning and higher horsepower setups
  • Proven Across Multiple Platforms
    Tested in drag racing, street performance, and NA builds
  • Consistent, Reliable Results
    Stable formulation for repeatable performance

Fuel Specifications

  • Fuel Type: Unleaded Oxygenated Race Fuel
  • Color: Pink
  • Octane (R+M)/2: 103
  • Motor Octane: 96
  • Research Octane: 111
  • Specific Gravity: 0.734
  • RVP: 6.30
  • Oxygen Content: 6.75%
  • Air/Fuel Ratio: 13.4:1

Ideal Applications

  • Small block and big block drag racing engines
  • Naturally aspirated performance builds
  • Turbocharged and supercharged engines
  • High horsepower street cars
  • Racers looking for one versatile fuel across multiple setups

Available at Lee Motorsports

Lee Motorsports is proud to offer Fuel Factory race fuels, including F 109 UO for racers and builders who want one fuel that can handle it all. As we continue expanding our Fuel Factory lineup, more fuel options and sizes will be added.

⚠️ Important Notes

  • For off-road/racing use only
  • Proper tuning recommended for oxygenated fuels
  • Always verify compatibility with your specific engine setup

If You’re Not Sure What to Run… This Is It

When you need a fuel that can handle multiple builds, different setups, and still deliver performance gains, F 109 UO gives you flexibility, power, and consistency in one package.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7549877782

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Lucy Mejia
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Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Twins9
New York, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
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swwkennyg
Lowell, US
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026
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Monica Alzate
Waukegan, US
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
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Heather260
Louisville, US
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025

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