Enjoy 6–10% better fuel economy and maximize power and response with AR6500 Diesel Treatment.

Upgrade Your Diesel with AR6500

  • AR6500’s detergent package removes internal and external deposits from injectors and restores turbo and DPF function.

  • Corrects injector spray patterns for improved power, response and MPG.

  • AR6500 boosts cetane by up to 8 points, raising standard U.S. diesel (CN 40–45) to the range modern engines require (CN 48-55) for improved MPG, reduced soot, and fewer DPF regens.

  • Use at every fill-up. 1 oz of AR6500 treats 10 gallons of diesel.

WHAT YOU'LL NOTICE

  • More miles per tank (6–10% fuel economy improvement is typical)

  • Stronger throttle response and less turbo lag

  • Longer intervals between active DPF regenerations

  • Quieter, smoother-running engine operation

Archoil is the real deal.

Diesel Power Magazine
★★★★★
15,000+ Ratings 4.7 out of 5
#1 Best-Seller in Diesel Additives

We're seeing great results. I highly recommend Archoil products

George Swift
Head Mechanic, Jay Leno's Garage

Improved fuel economy, smoother running engine... We're now believers in Archoil.

I'm up 1.1 MPG and my customers are saying they're going a longer distance between DPF regens

Arod, PTT
@PowerStrokeTechTalkwARod

AR6500 Diesel Treatment enhances all aspects of diesel performance – including lubricity.

Independent ASTM testing shows AR6500 reduces wear by 43%, protecting high-pressure pumps (including the CP4) and injectors from catastrophic failure.

AR6500 is the #1 Best-Seller
in Diesel Additives on Amazon
100% Money Back Guarantee

For more information and test results, visit the AR6500 Diesel Treatment page.

Customer Reviews

Based on 946 reviews
86%
(813)
7%
(64)
4%
(35)
2%
(19)
2%
(15)
M
Mondo L. (Portland, OR, US)
Great product

This product is way rad, it increases mileage and throttle response.

K
Keith n. (Laurel, NY, US)

Works better then power service I use to use

R
Richard L. (Wilmington, DE, US)
AAAA++++

Use for my 50' yacht.....noticed quieter run and improved performance. Including RPM's against load. Part of my fueling routine to add.

R
Renee B. (Lynnwood, WA, US)
Great stuff

Just got a diesel so this is my first time using this but works great and now about to order another