Archoil AR6500 Diesel Treatment (40 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles
Archoil AR6500 Diesel Treatment (40 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles
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Archoil AR6500 Diesel Treatment (40 oz) - Treats 400 Gallons - 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 40 oz bottle treats up to 400 gallons
  • 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
  • KEEPS TURBO CLEAN: Helps reduce fuel soot and deposit formation that impacts turbo response, restoring boost and smoother acceleration
Current price is $44.95
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Sold by Archoil, Inc.Pro Seller
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4.746268656716418 stars out of 5, based on 67 seller reviews(4.7)
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4.8 out of 5 stars
stars1,056 ratings1,012 reviews
How item rating is calculated
  1. 5 stars86% (910)
  2. 4 stars7% (78)
  3. 3 stars4% (38)
  4. 2 stars2% (17)
  5. 1 star1% (13)
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Showing 1-3 of 1,012 reviews

Feb 24, 2026
Paul
Sold and shipped byArchoil, Inc.
5 out of 5 stars review

Verified Purchase

Don't wait, it works!

An unmistakable improvement in idle smoothness, throttle power and start ups, I would highly recommend this product to all diesel owners!

Helpful?4HCIBVRQCND5581309909
Oct 5, 2025
cwells1106
Sold and shipped byArchoil, Inc.
5 out of 5 stars review

Verified Purchase

works good

didn't really see any fuel mileage being better. but definitely runs much smoother then it did. I have 02 7.3l.

Helpful?4HCIBVRQCND5581309909
Feb 28, 2025
anonymous
Sold and shipped byArchoil, Inc.
5 out of 5 stars review

Verified Purchase

Archoil 👍

Package arrived on time Getting better fuel mileage with it 2

Incentivized Review
Helpful?4HCIBVRQCND5581309909