---
product_id: 278708533
title: "AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster"
brand: "archoil"
price: "¥35517"
currency: JPY
in_stock: true
reviews_count: 13
category: "Archoil"
url: https://www.desertcart.jp/products/278708533-ar6500-diesel-treatment-40-oz-two-pack-treats-800-gallons
store_origin: JP
region: Japan
---

# Treats 800 gallons total Boosts cetane +8 points Improves lubricity by 43% AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster

**Brand:** archoil
**Price:** ¥35517
**Availability:** ✅ In Stock

## Summary

> 🚀 Fuel smarter, drive cleaner, and never miss a mile!

## Quick Answers

- **What is this?** AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster by archoil
- **How much does it cost?** ¥35517 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/278708533-ar6500-diesel-treatment-40-oz-two-pack-treats-800-gallons)

## Best For

- archoil enthusiasts

## Why This Product

- Trusted archoil brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Every Fill-Up Use:** Two 40 oz bottles treat 800 gallons total—just add at every fill for continuous engine care.
- • **Injector & Turbo Revitalizer:** Powerful detergent formula cleans injectors and turbo deposits, restoring peak performance.
- • **DPF Longevity & Reduced Regens:** Keep your Diesel Particulate Filter cleaner longer, cutting down costly regen cycles.
- • **Ultimate Fuel Efficiency Boost:** Boost your diesel’s cetane by up to 8 points for faster ignition and smoother rides.
- • **Comprehensive Engine Protection:** Enhance lubricity by 43% to safeguard sensitive fuel system components like CP4 pumps.

## Overview

Archoil AR6500 Diesel Treatment is a premium additive designed for all diesel engines, delivering a potent blend that boosts cetane by up to 8 points, improves fuel lubricity by 43%, and cleans injectors and turbo deposits. This two-pack treats up to 800 gallons, supports DPF health by reducing regeneration frequency, and ensures smoother combustion and extended engine life with every fill-up.

## Description

Buy Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster: Diesel Additives - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Ease of use - Works great, my truck loves it, saves me fuel and engine runs smoother, also less regens .
Review: Great product - Great results , have been using for about a year and a half on our Baby Diesel 4.0 Chevy 1500 pick up. Highest mileage has been 41.4 per gallon but around 30 to 31 average driving city and highway. Fewer and shorter regenerations. Very satisfied with the product would recommend.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08QSLLNM8 |
| Best Sellers Rank | #194 in Automotive ( See Top 100 in Automotive ) #2 in Diesel Additives |
| Brand | Archoil |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,862) |
| Date First Available | December 16, 2020 |
| Item Weight | 6.27 pounds |
| Item model number | AR6500-TP |
| Manufacturer | Archoil |
| Manufacturer Part Number | AR6500-TP |
| Model | AR6500 Diesel Treatment Two Pack |
| Product Dimensions | 6 x 6 x 10 inches |

## Product Details

- **Brand:** Archoil
- **Liquid Volume:** 80 Fluid Ounces
- **Package Information:** Bottle
- **UPC:** 608819243931
- **Vehicle Service Type:** Car, Truck, SUV, Van, RV

## Images

![AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster - Image 1](https://m.media-amazon.com/images/I/71HBIERvMYL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can it be used in my vehicle?**
A: AR6500 is suitable for use in all diesel vehicles, including newer systems such as High Pressure Common Rail.

**Q: What's the difference between AR6500 Diesel Treatment and AR6400-D Diesel Fuel System Cleaner?**
A: AR6400-D is a one-tank treatment that rapidly deep cleans the entire fuel system. AR6500 is a on-going maintainance treatment that improves fuel quality at every fill-up. For best results, use both with the Diesel Fuel System Kit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ease of use
*by S***. on July 28, 2026*

Works great, my truck loves it, saves me fuel and engine runs smoother, also less regens .

### ⭐⭐⭐⭐⭐ Great product
*by T***G on July 3, 2026*

Great results , have been using for about a year and a half on our Baby Diesel 4.0 Chevy 1500 pick up. Highest mileage has been 41.4 per gallon but around 30 to 31 average driving city and highway. Fewer and shorter regenerations. Very satisfied with the product would recommend.

### ⭐⭐⭐⭐⭐ Must-Have for Modern Diesels – Proven Over Time
*by H***Ć on April 1, 2026*

I order these every couple of months for my diesel, and at this point, it’s a staple for me. If you’re running a modern diesel, this is something you should seriously consider. After about 50,000 miles of consistent use, I’ve had zero issues. The truck is still running strong, holding higher MPG numbers, and everything feels smooth and consistent. One thing that really stood out to me—my fuel filters have come out clean, which says a lot about how well this is doing its job. It’s easy to use, mixes well, and doesn’t require any extra hassle. Just add it and go. Overall, this has proven itself over time for me. Reliable, effective, and something I’ll keep using long-term.

## Frequently Bought Together

- Archoil AR6500 Diesel Treatment (40.6oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles
- Archoil AR6400-D Diesel Fuel System Cleaner (Two Pack) - Cleans Injectors, Turbo & DPF
- Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/278708533-ar6500-diesel-treatment-40-oz-two-pack-treats-800-gallons](https://www.desertcart.jp/products/278708533-ar6500-diesel-treatment-40-oz-two-pack-treats-800-gallons)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-11*