Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
NF Ultra Unleaded Race Fuel Concentrate 1L Octane Booster NFUVehicle Compatibility This product is not selected by vehicle fitment. It is a universal petrol fuel concentrate intended for use with pump fuel where an octane increase is required. Specifications Product: NF Ultra Unleaded Race Fuel Concentrate Capacity: 1L Octane increase: Up to 10 RON (depending on mix ratio) Mixing guide (1L tin): 1L mixed with 60L pump fuel: increases petrol octane by 6 RON 1L mixed with 40L pump fuel: increases petrol octane by
Vehicle Compatibility
This product is not selected by vehicle fitment. It is a universal petrol fuel concentrate intended for use with pump fuel where an octane increase is required.
Specifications
- Product: NF Ultra Unleaded Race Fuel Concentrate
- Capacity: 1L
- Octane increase: Up to 10 RON (depending on mix ratio)
- Mixing guide (1L tin):
- 1L mixed with 60L pump fuel: increases petrol octane by 6 RON
- 1L mixed with 40L pump fuel: increases petrol octane by 8 RON
- 1L mixed with 20L pump fuel: increases petrol octane by 10 RON
- Compatibility: Safe for oxygen sensors and catalytic converters
- Usage: Safe to use in every tank
Features
- Instantly increases octane rating by up to 10 RON (mix ratio dependent)
- Power booster: increases energy in the fuel
- Helps eliminate detonation, knocking, pinging, and pinking
- Improves acceleration and overall performance
- Helps reduce hesitation and engine temperatures
- Safe for oxygen sensors and catalytic converters
- Suitable for use in every tank
Why Buy From Us
- Local South African stock for fast dispatch
- Nationwide delivery across South Africa
- Product and usage support to help you select the correct treat rate
- 12-month warranty where applicable
Installation & Maintenance Tips
- Confirm the fuel volume in the tank and choose the treat rate (20L, 40L, or 60L per 1L tin) to match your required octane increase.
- Measure and mix accurately—octane increase is dependent on the correct ratio.
- For best consistency, add the concentrate to the tank and then add pump fuel to help blend.
- Use only as directed and handle fuel products responsibly; store sealed in a cool, dry place.
- If knocking or detonation persists, investigate mechanical causes (ignition timing, fuel quality, overheating) in addition to fuel treatment.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 492 reviews
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Product Reviews
★★★★★ 3
Looks nice but not comfortable
Size: 9.5, Color: Black
Look nice, fit well, but there is no cushion on the sole so feet hurt after wearing for even a short time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Nice shoes
Size: 11, Color: Black
bought for my husband to wear to a funeral. Since he would only be wearing them for a day as we don't dress up ever he didn't want to spend allot. The shoes themselves look more expensive than they were and he said that they were comfortable enough. Not sure how well they will last with daily wear. the services had allot of dirt and the shoes were easy to wipe clean with a damp towel
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Reviewed in the United States on October 15, 2025
★★★★★ 5
Amazon Essentials
Size: 8, Color: Black
Good ,nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
Very handsome shoe
Size: 7, Color: Brown
Beautifully made shoe. Comfortable, great fit. Very handsome on foot. Can wear with anything. Very pleased
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Reviewed in the United States on April 18, 2026
★★★★★ 5
From a Long Time Hard Sole Dress Shoe Wearer, These are a Must Have!
Size: 12, Color: Blue
I have been wearing hard sole dress shoes for decades and with the full COVID shift to dressing super casual in a professional work environment, I was in the market for some more casual let dressy shoes that were a heck of a lot more comfortable and flexible than my hard soles so I thought I would give this brand and style a try. Oh man, I'm in love. These give you that dressier look yet you can totally dress them down with jeans or cordouroys, so versatile. As I did with my hard soles, I inserted one of my Nike Air in soles and man, these are so comfortable I bought navy and brown! I usually wear these with thin dress socks and they go perfectly with any type of suit set, a no brainer purchase here. I'm a 12 and bought a 12, perfect fit, not to skinny, not to wide, just right. Bottom sole grip is impressive, never felt unstable, solid rubber sole here. I decided to lace them up so there are not tying and the tongue does slip down sometimes so with this feature, best to use a metal shoe horn, then it's super easy to slide them on, they seem to take a beating and remain clean too, I've definitely scuffed them up against many things and still no damage, it's crazy, must have a great finish. NOTE TO Note to MANUFACTURER/SELLER - You need to make a version in GRAY in this specific style and I will buy them instantly, and I assure you they will be incredibly popular! Really not sure why there isn't more colors in these like gray, shades of gray, maybe red, lighter blue and maybe some with different tones in standard colors. Casual dress shoe wearers are looking for new and exciting bold colors so this is the perfect shoe type to deliver on that.
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Reviewed in the United States on January 6, 2024
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