---
product_id: 203341010
title: "Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner"
brand: "archoil"
price: "₨53141"
currency: LKR
in_stock: true
reviews_count: 13
category: "Archoil"
url: https://www.desertcart.lk/products/203341010-archoil-diesel-fuel-system-kit-ar6500-diesel-treatment-40-oz
store_origin: LK
region: Sri Lanka
---

# Boosts cetane & MPG AR6400-D Fuel System Cleaner 40 oz AR6500 Diesel Treatment Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

**Brand:** archoil
**Price:** ₨53141
**Availability:** ✅ In Stock

## Summary

> ⛽ Elevate your diesel game — clean, protect, and perform like a pro!

## Quick Answers

- **What is this?** Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner by archoil
- **How much does it cost?** ₨53141 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/203341010-archoil-diesel-fuel-system-kit-ar6500-diesel-treatment-40-oz)

## 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

- • **Fuel Economy Booster:** Enhances cetane rating for smoother combustion and improved MPG.
- • **Dual-Action Fuel Revival:** Cleaner + treatment combo removes deposits and restores peak engine performance.
- • **Long-Lasting Engine Care:** Sustained protection reduces emissions and engine wear over thousands of miles.
- • **Nano-Lubrication Powerhouse:** Advanced nanoborate tech protects injectors, turbo & DPF from wear.
- • **Universal Diesel Compatibility:** Safe for all diesel engines including HPCR, ULSD & biodiesel blends.

## Overview

The Archoil Diesel Fuel System Kit combines a 40 oz AR6500 Diesel Treatment with AR6400-D Cleaner to optimize diesel engine performance. Featuring cutting-edge nanoborate lubrication, it cleans fuel systems, boosts cetane for better combustion, improves fuel economy, and protects critical components like injectors and turbochargers. Compatible with all diesel types, this kit delivers long-lasting efficiency and reduced emissions, making it a top-rated choice for diesel engine maintenance.

## Description

Buy Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner: Diesel Additives - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Optimize Performance and Efficiency - Archoil Diesel Fuel System Kit, consisting of the AR6500 Diesel Treatment (40.6 oz) and the AR6400-D Diesel Fuel System Cleaner, proves to be an exceptional combination for optimizing the performance and efficiency of diesel engines. With their advanced formulas and proven effectiveness, this kit deserves a five-star rating. The AR6500 Diesel Treatment is a powerful additive designed to enhance the performance of diesel engines. It improves fuel economy, reduces engine wear, and minimizes emissions. This treatment is formulated with state-of-the-art nanoborate technology, which provides superior lubrication and protects fuel system components from wear and tear. The AR6500 Diesel Treatment also helps to prevent fuel oxidation, corrosion, and the formation of deposits, ensuring a clean and efficient fuel system. The AR6400-D Diesel Fuel System Cleaner complements the AR6500 Diesel Treatment by thoroughly cleaning the fuel system. It removes carbon deposits, varnish, and other contaminants that can accumulate over time and negatively impact engine performance. By using the AR6400-D Diesel Fuel System Cleaner, you can restore power, improve fuel efficiency, and reduce harmful emissions. This cleaner is compatible with all diesel engines, including high-pressure common rail (HPCR) systems. Both products in the Archoil Diesel Fuel System Kit are easy to use. The AR6500 Diesel Treatment can be added directly to the fuel tank during refueling, and the AR6400-D Diesel Fuel System Cleaner is added to the fuel system before an oil change. Following the provided instructions ensures proper application and maximum benefits. One of the standout features of this fuel system kit is its proven track record. Archoil is a trusted brand known for its high-quality products, and the Diesel Fuel System Kit is no exception. Many users have reported noticeable improvements in engine performance, fuel efficiency, and overall drivability after using this kit. It is particularly effective in resolving common issues such as rough idle, sluggish acceleration, and excessive smoke. Another notable advantage of the Archoil Diesel Fuel System Kit is its long-lasting effects. The AR6500 Diesel Treatment provides ongoing protection and lubrication, ensuring sustained performance benefits. The AR6400-D Diesel Fuel System Cleaner's effects can last for thousands of miles, making it a cost-effective solution for maintaining a clean and efficient fuel system. Furthermore, this kit is safe for use in all diesel engines and has no adverse effects on engine components or emissions systems. It is compatible with all diesel fuels, including ultra-low sulfur diesel (ULSD) and biodiesel blends. In summary, the Archoil Diesel Fuel System Kit, consisting of the AR6500 Diesel Treatment and the AR6400-D Diesel Fuel System Cleaner, is a highly effective and reliable solution for optimizing the performance and efficiency of diesel engines. With their advanced formulas, proven effectiveness, ease of use, and long-lasting benefits, this kit deserves a five-star rating. Overall rating: ⭐⭐⭐⭐⭐
Review: Great product for diesel engines! - Helped with cleaning up my engine's performance - much more responsive and improved mileage was a bonus.

## 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 |
| Best Sellers Rank | #281 in Automotive ( See Top 100 in Automotive ) #3 in Diesel Additives |
| Brand | Archoil |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,324) |
| Date First Available | April 23, 2020 |
| Item Weight | 3.72 pounds |
| Manufacturer | Archoil |
| Manufacturer Part Number | AR-FSK |
| Package Dimensions | 12.25 x 6 x 5.15 inches |

## Images

![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner - Image 1](263_QL70_.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner - Image 2](395_FMwebp_QL65_.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner - Image 3](526_FMwebp_QL65_.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner - Image 4](658_FMwebp_QL65_.jpg)
![Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner - Image 5](789_FMwebp_QL65_.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

### ⭐⭐⭐⭐⭐ Optimize Performance and Efficiency
*by C***N on July 22, 2023*

Archoil Diesel Fuel System Kit, consisting of the AR6500 Diesel Treatment (40.6 oz) and the AR6400-D Diesel Fuel System Cleaner, proves to be an exceptional combination for optimizing the performance and efficiency of diesel engines. With their advanced formulas and proven effectiveness, this kit deserves a five-star rating. The AR6500 Diesel Treatment is a powerful additive designed to enhance the performance of diesel engines. It improves fuel economy, reduces engine wear, and minimizes emissions. This treatment is formulated with state-of-the-art nanoborate technology, which provides superior lubrication and protects fuel system components from wear and tear. The AR6500 Diesel Treatment also helps to prevent fuel oxidation, corrosion, and the formation of deposits, ensuring a clean and efficient fuel system. The AR6400-D Diesel Fuel System Cleaner complements the AR6500 Diesel Treatment by thoroughly cleaning the fuel system. It removes carbon deposits, varnish, and other contaminants that can accumulate over time and negatively impact engine performance. By using the AR6400-D Diesel Fuel System Cleaner, you can restore power, improve fuel efficiency, and reduce harmful emissions. This cleaner is compatible with all diesel engines, including high-pressure common rail (HPCR) systems. Both products in the Archoil Diesel Fuel System Kit are easy to use. The AR6500 Diesel Treatment can be added directly to the fuel tank during refueling, and the AR6400-D Diesel Fuel System Cleaner is added to the fuel system before an oil change. Following the provided instructions ensures proper application and maximum benefits. One of the standout features of this fuel system kit is its proven track record. Archoil is a trusted brand known for its high-quality products, and the Diesel Fuel System Kit is no exception. Many users have reported noticeable improvements in engine performance, fuel efficiency, and overall drivability after using this kit. It is particularly effective in resolving common issues such as rough idle, sluggish acceleration, and excessive smoke. Another notable advantage of the Archoil Diesel Fuel System Kit is its long-lasting effects. The AR6500 Diesel Treatment provides ongoing protection and lubrication, ensuring sustained performance benefits. The AR6400-D Diesel Fuel System Cleaner's effects can last for thousands of miles, making it a cost-effective solution for maintaining a clean and efficient fuel system. Furthermore, this kit is safe for use in all diesel engines and has no adverse effects on engine components or emissions systems. It is compatible with all diesel fuels, including ultra-low sulfur diesel (ULSD) and biodiesel blends. In summary, the Archoil Diesel Fuel System Kit, consisting of the AR6500 Diesel Treatment and the AR6400-D Diesel Fuel System Cleaner, is a highly effective and reliable solution for optimizing the performance and efficiency of diesel engines. With their advanced formulas, proven effectiveness, ease of use, and long-lasting benefits, this kit deserves a five-star rating. Overall rating: ⭐⭐⭐⭐⭐

### ⭐⭐⭐⭐⭐ Great product for diesel engines!
*by L***P on December 29, 2025*

Helped with cleaning up my engine's performance - much more responsive and improved mileage was a bonus.

### ⭐⭐⭐⭐⭐ Best stuff I have used!
*by M***R on December 11, 2025*

This stuff just plan works! Use to use Hot Shot products, then I tried this stuff! I have 3 diesel vehicles, Ford F-350 7.3, Audi Q7 TDI, and Sprinter. Ford was noticeably quieter, both the Audi and Sprinter were smoother running and 2-3 mph better! Don’t know how they do it but it works! Highly recommended!

## 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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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-22*