---
product_id: 670424488
title: "Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner"
brand: "archoil"
price: "A$271"
currency: AUD
in_stock: true
reviews_count: 5
category: "Archoil"
url: https://www.desertcart.com.au/products/670424488-archoil-diesel-fuel-system-kit-ar6500-diesel-treatment-40-6
store_origin: AU
region: Australia
---

# Boosts cetane for peak fuel efficiency Long-lasting fuel system cleanliness Restores injectors, turbo & DPF performance Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner

**Brand:** archoil
**Price:** A$271
**Availability:** ✅ In Stock

## Summary

> ⛽ Drive smarter, cleaner, and stronger—because your diesel deserves the best.

## Quick Answers

- **What is this?** Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner by archoil
- **How much does it cost?** A$271 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/670424488-archoil-diesel-fuel-system-kit-ar6500-diesel-treatment-40-6)

## 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

- • **Clean & Protect:** Eliminates carbon deposits and varnish to reduce emissions and prevent costly repairs.
- • **Trusted by Pros:** 4.8-star rated with thousands of users confirming improved performance and less regen downtime.
- • **Maximize Your MPG:** Advanced nanoborate tech boosts cetane and fuel economy for every mile.
- • **Effortless Maintenance:** Simple add-to-fuel-tank application fits your busy lifestyle with zero hassle.
- • **Engineered for Precision:** Restores critical fuel system components—injectors, turbochargers, and DPF—for smoother, more powerful rides.

## Overview

The Archoil Diesel Fuel System Kit combines the AR6500 Diesel Treatment and AR6400-D Cleaner to enhance diesel engine performance by boosting cetane, restoring fuel system components, and removing harmful deposits. Compatible with all diesel engines, this kit improves fuel economy, reduces emissions, and ensures long-lasting engine protection with easy application and proven results.

## Description

Includes AR6500 Diesel Treatment (40 oz) Includes AR6400-D Diesel Fuel System Cleaner Restore key fuel system components - injectors, turbo & dpf Boost cetane, improve performance and MPG AR6400-D is not the remedy for HEUI injector stiction. Please use AR9100 Friction Modifier instead

Review: Great stuff, lessens regeneration cycles.
Review: This is a great product.

## Features

- Includes AR6500 Diesel Treatment (40 oz)
- Includes AR6400-D Diesel Fuel System Cleaner
- Restore key fuel system components - injectors, turbo & dpf
- Boost cetane, improve performance and MPG
- AR6400-D is not the remedy for HEUI injector stiction. Please use AR9100 Friction Modifier instead

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B087JSLFNC |
| Brand | Archoil |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,339) |
| Date First Available | 12 July 2020 |
| Item Weight | 1.73 Kilograms |
| Manufacturer | Archoil |
| Manufacturer Part Number | AR-FSK |
| Manufacturer reference | AR-FSK |
| Package Dimensions | 37.7 x 18.4 x 13.4 cm; 1.73 kg |

## Images

![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner - Image 1](https://m.media-amazon.com/images/I/71fJHWGaN0L.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner - Image 2](https://m.media-amazon.com/images/I/81s0N4JkfaL.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner - Image 3](https://m.media-amazon.com/images/I/81SJ1bkPG5L.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner - Image 4](https://m.media-amazon.com/images/I/71HdYCU8ZLL.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6 oz) + AR6400-D Diesel Fuel System Cleaner - Image 5](https://m.media-amazon.com/images/I/71k6RD1yfaL.jpg)

## Questions & Answers

**Q: Can it remove water, like k100d+ ?**
A: I doesn’t say anything on the bottle about it, this is geared more towards keeping the DPF clean, and it worked wonders on my Mercedes ML320 CDI for that, feels like I gained 100hp lol. Realistically probably 30-40ftlb in torque on the dog cleaner. The AR9500 is a good cetane boost, stiction fix, and injector cleaner geared more towards Ford HEUI injectiors on 6.0 and 7.3, but works great in any diesel.

**Q: Can this product be used in seni trucks? D-13 engine to be exact.**
A: yes, Our products work for all diesel engines

**Q: Does this product clean the egr valve as well?**
A: I’m not sure check their web site. I know it cleans everything else.

**Q: Can it be used for Standby Diesel Generator systems?**
A: Yes, all diesel engines

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great stuff, lessens regeneration cycles.
*by S***N on 11 January 2025*



### ⭐⭐⭐⭐⭐ This is a great product.
*by D***G on 3 March 2026*



### ⭐⭐⭐⭐ Good but expensive
*by D***L on 9 February 2026*



## Frequently Bought Together

- Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner
- Rislone 4784 DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz
- Rislone 4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz

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**Shop now:** [https://www.desertcart.com.au/products/670424488-archoil-diesel-fuel-system-kit-ar6500-diesel-treatment-40-6](https://www.desertcart.com.au/products/670424488-archoil-diesel-fuel-system-kit-ar6500-diesel-treatment-40-6)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-11*