---
product_id: 31504306
title: "4740-4PK Complete Diesel Fuel System Treatment 16.9 oz, (Pack of 4)"
price: "R2222"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/31504306-4740-4pk-complete-diesel-fuel-system-treatment-16-9-oz
store_origin: ZA
region: South Africa
---

# Boosts power & mileage +7.3% Cleans injectors & valves Protects fuel system & prevents gelling 4740-4PK Complete Diesel Fuel System Treatment 16.9 oz, (Pack of 4)

**Price:** R2222
**Availability:** ✅ In Stock

## Summary

> ⛽ Unlock your diesel’s full potential — clean, protect, and power up like a pro!

## Quick Answers

- **What is this?** 4740-4PK Complete Diesel Fuel System Treatment 16.9 oz, (Pack of 4)
- **How much does it cost?** R2222 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/31504306-4740-4pk-complete-diesel-fuel-system-treatment-16-9-oz)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fuel System Armor:** Lubricates and stabilizes fuel to prevent corrosion, gelling, and rough idling.
- • **Injector-Grade Clean:** Dual-action formula clears deposits for smooth, reliable performance.
- • **Power & Mileage Boost:** Experience up to 7.3% better fuel economy and restored engine power.
- • **Instant & Long-Term Relief:** Rapidly fixes rough idle and hard starts while maintaining peak performance over time.
- • **Universal Diesel Compatibility:** Works flawlessly with ULSD, Biodiesel, and all diesel engines including turbocharged and high-pressure systems.

## Overview

Rislone 4740-4PK Complete Diesel Fuel System Treatment is a powerful all-in-one additive that cleans injectors, valves, and combustion chambers while boosting cetane, power, and fuel economy by an average of 7.3%. Compatible with all diesel types and engines, it stabilizes fuel, prevents gelling, lubricates the entire fuel system, and eliminates black smoke and rough idling. Trusted by professionals to restore lost power and improve mileage, this treatment is essential for maintaining peak diesel engine performance.

## Description

Rislone Hy-per Diesel Complete Fuel System Treatment improves the quality of Diesel fuel by increasing its cleaning ability, adding lubrication, removing contaminants, fighting corrosion, and helping to prevent the fuel from gelling & going bad. This one dual cavity bottle contains the same amount of additives equal to a bottle of regular injector & complete fuel system cleaner, anti-gel cold flow improver, fuel stabilizer & conditioner, Cetane booster & diesel treatment, ULSD sulfur substitute, and UCL pump & injector lubricant. Simply put, it is the best all in one diesel fuel additive money can buy. Works with ALL: Ultra Low Sulfur Diesel (ULSD), Regular Diesel, Biodiesel Blends, Direct Injected (DI), Indirect Injected (IDI), Turbo Direct Injected (TDI), High-Pressure Common Rail (HPCR), and Turbocharged Engines. Use with ALL: BlueTEC, Cummins, Duramax, EcoDiesel, Navistar, PowerStroke, TDI CleanDiesel and many more. Dual clean-up and keep-clean formula removes injector deposits, prevents and estores lost power and improves fuel economy. Real world testing shows an average fuel economy increase of 7.3% and an 87% power recovery with regular use. Includes a specially designed spout which allows it to be poured into all fuel tanks, including those with misfuelling devices.

Review: Absolutely works as advertised! - My 2015 Ram 3500 6.7 Cummins was running really rough after a fuel filters change. At idle there was a regular pulsing swing from 600 rpm to choking. It was clearly being starved of fuel. I put on brand new pair of Fleetguard filters after the new Mopar filters started throwing an injector rail code and put me in limp mode a couple times. The Fleetguard filters cleared the code and no more limp mode. It ran better but something was still wrong. I figured something was clogging the injectors? Let me try this stuff. On the bottle it says it works right away but may need another bottle in severe circumstances. This product cleaned/cleared up that rough pulsing idle within 2 minutes and my 6.7 is running free again! I highly recommend this product!
Review: Best for my TDIs - Tried all the fuel additives for my TDIs. So far this is hands down the best. Keeps those codes at bay if used properly. So far so good!!!!

## Features

- Cleans injectors, valves and the combustion chamber. Boosts Cetane, power, performance and mileage. Stabilizes fuel, lubricates and protects
- Helps eliminate black smoke, fuel gelling, clogged injectors, rough idle and hard starts. Works equally well in trucks, SUV’s and passenger car diesel applications.
- Increases power, performance, mileage and saves fuel by lubricating the complete fuel system. Safe to use on vehicles which have converters, DPF particulate filters, or DEF systems.
- Designed to work with all diesel engines and diesel fuels including Ultra Low Sulfur Diesel (ULSD), Bio Diesel and off road Diesel Fuel.
- Use anytime in a nearly full tank, or add to tank and then fill with up to 35 gallons of diesel fuel. For smaller tanks (10-18 gallons, use 1/2 bottle pouring equal amounts from each side. Larger tanks use one bottle for every 30 gallons of fuel.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BYS6T5W |
| Best Sellers Rank | #441,770 in Automotive ( See Top 100 in Automotive ) #219 in Diesel Additives |
| Brand | Rislone |
| Customer Reviews | 4.0 4.0 out of 5 stars (92) |
| Date First Available | March 22, 2013 |
| Item Weight | 4.32 pounds |
| Item model number | 4740-4PK |
| Manufacturer | Rislone |
| Manufacturer Part Number | 4740-4PK |
| Model | 4740-4PK |
| Package Dimensions | 11.54 x 9.76 x 4.76 inches |

## Images

![4740-4PK Complete Diesel Fuel System Treatment 16.9 oz, (Pack of 4) - Image 1](https://m.media-amazon.com/images/I/710qT2+064L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absolutely works as advertised!
*by R***K on January 12, 2025*

My 2015 Ram 3500 6.7 Cummins was running really rough after a fuel filters change. At idle there was a regular pulsing swing from 600 rpm to choking. It was clearly being starved of fuel. I put on brand new pair of Fleetguard filters after the new Mopar filters started throwing an injector rail code and put me in limp mode a couple times. The Fleetguard filters cleared the code and no more limp mode. It ran better but something was still wrong. I figured something was clogging the injectors? Let me try this stuff. On the bottle it says it works right away but may need another bottle in severe circumstances. This product cleaned/cleared up that rough pulsing idle within 2 minutes and my 6.7 is running free again! I highly recommend this product!

### ⭐⭐⭐⭐⭐ Best for my TDIs
*by T***G on December 17, 2025*

Tried all the fuel additives for my TDIs. So far this is hands down the best. Keeps those codes at bay if used properly. So far so good!!!!

### ⭐⭐⭐ Seemed to make engine run smoother and quieter.
*by S***N on November 2, 2024*

3-STARS This is a review on Rislone Hy-Per Diesel Complete Fuel System Cleaner, 500ml. I am giving this product a 3-star review. This product did decreased regen frequency from previous additive, which suggests that it may have cleaned the DPF to some degree or enhances combustion action to burn cleaner. No changes to fuel mileage from baseline were noted. I did not get any engine error codes while using this product. I used 1 bottle of Rislone Hy-Per Diesel Complete Fuel System Cleaner, 500ml. I added the 500ml bottle to 32 gallons of fuel. No check engine lights came on. Vehicle showed no adverse affects from additive. So far, this is the only product that seemed to have made the engine run quieter and smoother. Regen mileage interval with NO additives was 384 miles after receiving vehicle from repair shop. Mileage between regens decreased from 384 miles (baseline) to 323 miles. A product used 2 tanks before, dropped mileage interval below baseline mileage. This product gave my vehicle a decrease of 61 mileage between regen intervals compared to baseline numbers. I had previously used Liqui-Moly Diesel Purge 2 tanks prior to this product. Rislone Hy-Per Diesel Complete Fuel System Cleaner gained 25 miles over previously used Wynn’s Turbo Cleaner, relating to regen mileage intervals. I'll base the review on regen mileage gain on previous mileage (not baseline). I did not notice any change in fuel economy. I did not notice any improvement in power. Driving Notes: 35 miles driven during regeneration cycle Soot down to 4 grams. EGTs = 556F temperature, normal highway driving EGTs = 692F temperature during regeneration cycle Injection quantity at idle at baseline=9mm Injection quantity at idle after Rislone Hy-Per Diesel Complete Fuel System Cleaner=7mm #1 #2 #3 #4 #5 #6 #7 #8 Injector balance at baseline: -0.5, 0.1, -0.2, 0.9, -0.6, -0.1, 0.0, 0.4 Injector balance after additive: -0.9, 1.2, 0.1, 1.0, -0.8, -.04, -0.3, 0.0 Less fuel being used at idle. Decreases in regeneration intervals, +25 miles from previous additive. Regen down to 4 grams. No negative affects. Quiet operation and smooth idle. My review is based on product efficiency, any damages to vehicle, check engine lights turning on or off, ability to clear engine codes (if my vehicle has any check engine lights), increase or decrease in mileage, and increase or decrease in regeneration mileage intervals. I will not use price as a factor. You will have determine if product is worth the cost. These products may or may not save you costly repairs or replacement. I cannot determine if these products can or will damage your vehicle. My vehicle has no check engine light or error codes. My vehicle is in good working order with no current issues during this review. My vehicle has over 200,000 miles. This is a stock vehicle, with a stock (OEM) factory tune installed. Just prior to this test, my truck was not performing a regen cycle. Repairs were done which included a new 9th injector, new DPF pressure monitor. The pressure monitor measures pressure before and after the DPF filter. The difference in pressure allow computer to estimate how much soot has accumulated in the DPF filter. A force regen was also performed on my vehicle and a passive regen performed before I received my vehicle from repair shop. Vehicle is performing as it should. Test drive is relatively the same and consistent. 49.5 miles one way, with a drive time of about 56 minutes. There is a gradual 1129 foot elevation gain one way and 1129 elevation loss the opposite way. There is some surface street driving, some freeway driving, and most of drive is highway. Hope this review helps. I will be writing more reviews on other diesel additives. I have some data from other additives for comparison listed below. Most products seemed to help and a couple seemed to worsened DPF performance during testing. You should not compare the towing data for comparison. I have just added it to show that towing will change data. Towing will increase exhaust gas temperatures and should make the DPF more effective. My regen mileage intervals increased, decreasing regen frequency, while towing. There are many factors that affect the DPF performance. The factors that I noticed (on my vehicle) are outside temperature, humidity, and EGTs. Lower temperatures decreased DPF performance. Higher humidity decreased DPF performance. Higher outside temperatures and lower humidity seem to increase DPF performance. Higher EGTs such as towing increased DPF performance. Regeneration Interval Mileage Comparison of Different Additives: baseline (no additive), 384 miles between regeneration intervals Archoil AR6200 Fuel Treatment, 391 miles between regeneration intervals,+7 mile increase from baseline, +7 mile increase from previous additive(none, baseline) Wynn’s DPF Regenerator, 462miles between regeneration intervals, +78 mile increase from baseline, +71 mile increase from previous additive Seafoam (high dose), 504 miles between regeneration intervals, +120 mile increase from baseline, +42 mile increase from previous additive Nitrox Clean Cat Diesel, 324 miles between regeneration intervals, -60 mile decrease from baseline, -180 mile decrease from previous additive Archoil AR6500 pulling trailer in hot weather (not same comparison) , 1075 miles between regeneration intervals, +691 mile increase from baseline, +751 mile increase from previous additive Nitrox Clean Cat Diesel 2nd try, 402 miles between regeneration intervals, +18 mile increase from baseline, +78 mile increase from previous additive(Nitrox Clean Cat Diesel) Liqui Moly Diesel Purge, 265 miles between regeneration intervals, -119 mile decrease from baseline, -137 mile decrease from previous additive Wynn’s Turbo Cleaner, 298 miles between regeneration intervals, -86 mile decrease from baseline, +33 mile increase from previous additive Rislone Hy-Per Diesel, 323 miles between regeneration intervals, -61 mile decrease from baseline, +25 mile increase from previous additive Rislone DPF Clean, 323 miles between regeneration intervals, -61 mile decrease from baseline, 0 mile difference from previous additive Star Review Legend 1 star: Made check engine light turn on or trigger error code(s) 2 star: Causes no check engine warnings and no engine error codes. Mileage worsened or DPF regeneration intervals decreased in mileage. DPF regeneration process worsened. 3 star: gained less than 50 miles in regen mileage interval, or slight increase in mpg. 4 star: gained more than 50, but less than 100 miles in regen mileage interval, or +2 mpg increase 5 star: gained more than 100 miles in regen mileage interval, or +3 mpg increase.

## Frequently Bought Together

- Rislone 4740-4PK Complete Diesel Fuel System Treatment 16.9 oz, (Pack of 4)
- Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz
- Rislone® DPF Clean™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 1-Pack

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-08*