Archoil AR6300 Winter Diesel Treatment - Treats 275 Gallons - Includes Anti-Gel Protection - Additive for All Diesel Vehicles
Archoil AR6300 Winter Diesel Treatment - Treats 275 Gallons - Includes Anti-Gel Protection - Additive for All Diesel Vehicles
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Archoil AR6300 Winter Diesel Treatment - Treats 275 Gallons - Includes Anti-Gel Protection - Additive for All Diesel Vehicles

Key item features

  • EASY USE AT EVERY FILL-UP: Add directly to the fuel tank at each fill-up. The long neck and measuring chamber make treating fuel simple. One 41 oz bottle treats up to 275 gallons
  • ANTI-GEL PROTECTION: Prevents gelling and helps keep diesel flowing in cold weather for reliable starts and consistent performance
  • FOR ALL DIESEL ENGINES: Suitable for use in all diesel vehicles and equipment - light-duty, heavy-duty, pickup, SUV, van, RV, etc. (including modern HPCR systems)
  • IMPROVES LUBRICITY (ASTM D6079): Tested to improve lubricity by 43% to help protect fuel system components, including wear-sensitive parts like the CP4 pump
  • BOOSTS CETANE UP TO +8: Raises cetane up to 8 points for faster ignition, smoother combustion, and improved drivability; many engines run best around 48–50 while pump diesel is often 40–45
  • CLEANS INJECTORS: AR6500's detergent package removes injector deposits and restores spray patterns for improved atomization, supporting better performance and fuel economy
  • SUPPORTS DPF & REDUCES REGENS: Targets deposit formation to help keep the DPF clean and reduce regeneration frequency – restores performance, fuel economy, and extends DPF lifespan
Current price is $44.95
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Sold and shipped by Archoil, Inc.Pro Seller
4.746268656716418 stars out of 5, based on 67 seller reviews(4.7)
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4.9 out of 5 stars
stars215 ratings212 reviews
How item rating is calculated
  1. 5 stars92% (197)
  2. 4 stars6% (12)
  3. 3 stars2% (5)
  4. 2 stars0% (1)
  5. 1 star0% (0)
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Showing 1-3 of 212 reviews

Feb 2, 2026
Peter F.
5 out of 5 stars review

Excellent product

I added this to my 2000 Jetta diesel with almost 400,000 miles on it, we just came through a very cold Snap in the Midwest here and this car doesn't get driven every day. After adding it to the tank and driving 400 miles., And then going through a below zero snap I went to start the car and it started right up. That impressed me very much as I've had a diesel VW since 1981.

Review from archoil.com
Helpful?3YMO9339LKRS608868733
Jan 18, 2026
CK M.
5 out of 5 stars review

Excellent winter juice!!!

Tried my first bottle of AR6300 works amazing compared to many other arrivals on the market and when it warms up in temps I'll be giving it a dose of the DPF cleaner to blow out the nasty soot that clogs our DPF filters giving my truck the robust beast that it is taking this 2021 GMC Sierra Duramax LM2 back to the showroom condition it deserves!!! Thanks Archoil for Elite products !!!

Review from archoil.com
Helpful?3YMO9339LKRS608868733
Dec 30, 2025
James K.
5 out of 5 stars review

Worry free winter

2026 6.7L Power Stroke, runs smoother especially when less than 20degrees with the AR6300 - plus offsets the mileage drop from winter blend diesel. Long time Archoil oil user in diesel and 6200 for gas equipment. Best performing product on the market in my opinion.

Review from archoil.com
Helpful?3YMO9339LKRS608868733