Archoil AR6500 diesel treatment 40 oz two pack for all diesel vehicles treats 800 gallons
Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles
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Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

Key item features

  • EASY USE AT EVERY FILL-UP (2-Pack Value): Add directly to the fuel tank at each fill-up. Includes two 40 oz bottles – each treats up to 400 gallons (800 gallons total)
  • 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 $79.90
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Arrives by Wed, May 20
Sold by Archoil, Inc.Pro Seller
Fulfilled by Walmart
4.746268656716418 stars out of 5, based on 67 seller reviews(4.7)
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4.8 out of 5 stars
stars1,007 ratings1,001 reviews
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Showing 1-3 of 1,001 reviews

May 11, 2026
Robert
Top Reviewer
Sold byArchoil, Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

great!!

noticeably better fuel mileage and performance.. Ford 6.7, great product.. way better thsn EDT.

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Mar 27, 2026
Jerry
Sold and shipped byArchoil, Inc.
5 out of 5 stars review

Verified Purchase

Work better than I expected.

Dropped my DPF regeneration times and mileage down significantly

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Dec 18, 2025
Lindsay
Sold and shipped byArchoil, Inc.
5 out of 5 stars review

Verified Purchase

Better Performance

Archoil really helps my diesels performance. Love it! I don't fill up at the station without adding Archoil.

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Helpful?3MXX0SBTI1C12277577259