---
product_id: 273971657
title: "Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz."
brand: "hot shot's secret"
price: "€ 34.67"
currency: EUR
in_stock: true
reviews_count: 5
category: "Hot Shot's Secret"
url: https://www.desertcart.ie/products/273971657-hot-shots-secret-p040416z-diesel-extreme-clean-and-boost-16
store_origin: IE
region: Ireland
---

# Boosts cetane by up to 7 points for power & efficiency Cleans fuel system components thoroughly Military-grade rust & corrosion protection Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz.

**Brand:** hot shot's secret
**Price:** € 34.67
**Availability:** ✅ In Stock

## Summary

> 🔥 Clean, Boost, Protect — Drive Diesel Like a Pro!

## Quick Answers

- **What is this?** Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. by hot shot's secret
- **How much does it cost?** € 34.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/273971657-hot-shots-secret-p040416z-diesel-extreme-clean-and-boost-16)

## Best For

- hot shot's secret enthusiasts

## Why This Product

- Trusted hot shot's secret brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Application:** Just 8 oz. per 20 gallons—easy to use during your next fill-up or every 6,000 miles
- • **Rust & Moisture Defense:** Advanced water dispersant and corrosion inhibitors protect your engine’s longevity
- • **Total Fuel System Detox:** Eliminates internal & external diesel injector deposits for peak engine health
- • **Engineered for Excellence:** Scientifically formulated to maximize performance across all diesel engines, from trucks to marine
- • **Power-Up with Cetane Boost:** Up to 7-point cetane increase for smoother combustion and better fuel economy

## Overview

P040416Z Diesel Extreme Clean and Boost is a concentrated diesel fuel system cleaner that removes stubborn injector deposits, disperses moisture, and boosts cetane by up to 7 points. Designed for all diesel engines, it improves combustion efficiency, reduces DPF regenerations, and protects against rust and corrosion with military-grade additives. Easy to use and scientifically engineered for lasting engine performance.

## Description

Diesel Extreme Clean & Boost is a fully formulated and concentrated fuel system cleaner and engine cleaner. Designed to remove deposits and improve the performance of all types of diesel engines, from semi-trucks to RV's, this diesel injector cleaner removes all internal diesel injector deposits (IDID's) and external diesel injector deposits (EDID's) as well as waxy and polymeric deposits that can clog the fuel filter. Our powerful diesel additive and fuel cleaner cleans out injector tips, cylinders, fuel lines and tanks, all while dispersing moisture to deliver a more efficient system. Once the fuel system is clean, Diesel Extreme contains several premium additives to enhance performance. A cetane boost can improve cetane ratings by 7 points for better combustibility, fuel economy and horsepower. With improved combustibility, you can reduce the number of diesel particulate filter (DPF) regeneration cycles required. Diesel Extreme works for all diesel engines, including: Semi-Trucks Pick-Up Trucks Farm Equipment Construction Equipment Marine Diesel Vehicles Racing Vehicles RV's Any Small Diesel Engine

Review: Super fast postage, used it only once so far but seems to do as it describes
Review: I usually don't believe in this stuff much, find it's mostly a waste of money. Had an old diesel sit for 9 years, ran rough as heck obviously on its old stale diesel fuel. Tossed half a bottle of this in, and filled the last half of the tank with fresh diesel and it runs better than when I parked it. Definitely buying a few more of this stuff.

## Features

- CLEANS FUEL STYSTEM: Hot Shot’s Secret Diesel Extreme is designed to thoroughly clean, lubricate, and safeguard all components of your engine & fuel system, such as valves, pumps, rings, pistons, and upper cylinders.
- CLEANS FUEL INJECTORS: Designed to eliminate & prevent the buildup of Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID's), as well as other stubborn varnish and deposits, this will keep your engine running smoothly.
- BOOSTS CETANE: Increases cetane (up to 7 points), for a more efficient combustion process, improved fuel economy, & increased engine power. It also helps reduce the frequency of DPF regenerations, ensuring a smoother driving experience.
- FIXES ISSUES: Non-alcohol-based water dispersant, fortified with military-grade rust and corrosion inhibitors, stabilizes & prevents rust, effectively dispersing moisture, this product ensures to improve overall engine performance.
- EASY TO USE: With a simple application of 8 oz. for every 20 gallons, this product is easy to use! Just pour it into your fuel tank during your next fill up or every 6,000 miles.POWERED BY SCIENCE: Our products are engineered to resolve issues, make equipment last longer and improve efficiency. Nothing leaves our building with our name on it unless we know it is absolutely the BEST it can be.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IUGFZE2 |
| Item model number | P040416Z |
| Manufacturer | Lubrication Specialties, Inc. |
| Product Dimensions | 17.78 x 6.35 x 6.35 cm; 450 g |

## Product Details

- **Brand:** Hot Shot's Secret
- **Item volume:** 473 Milliliters
- **Item weight:** 0.45 Kilograms
- **Number of Items:** 1
- **Unit count:** 16 Fluid Ounces

## Images

![Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. - Image 1](https://m.media-amazon.com/images/I/71wpNpLqZQL.jpg)
![Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. - Image 2](https://m.media-amazon.com/images/I/71ZnYuDmNkL.jpg)
![Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. - Image 3](https://m.media-amazon.com/images/I/71Ud6dOK+dL.jpg)
![Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. - Image 4](https://m.media-amazon.com/images/I/6165Z2soH3L.jpg)
![Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. - Image 5](https://m.media-amazon.com/images/I/81v94dUEjZL.jpg)

## Available Options

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

## Questions & Answers

**Q: We heard that this product only needs to be used twice a year, does anyone know if it says this on the bottle?**
A: So?? Which came first?!  My bottle says 6,000 miles… this bottle is about 10 months old. 
I’d really like to know if the manufacturer recommends 6k or 6 months! 
Thanks

**Q: Would this product be suitable for a 1.6 Diesel engine in our family car?**
A: I use it it a 1.9 TDI and 2 7.3 diesels.

**Q: Has anyone used this with a TDI with DEF / Urea?**
A: It is specifically designed for restoring the performance of diesel engines so yea it will be fine in your TDI just make sure you follow instructions don't mix it too strong or your car will run like a raped ape for a minute

**Q: I want to use this in a diesel parking heater to try and remove some of the carbon buildup inside the burn chamber. Do you think this would do that?**
A: It is very unlikely that using Diesel Extreme will remove carbon that is already built up in your heater. It is best used as a preventative to combat the amount of soot/carbon build up. Another note is that unfortunately, Diesel Extreme is very odorous and using it in an open heating element may cause some unpleasant odors.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***C on 13 November 2024*

Super fast postage, used it only once so far but seems to do as it describes

### ⭐⭐⭐⭐⭐ Review
*by T***R on 26 July 2025*

I usually don't believe in this stuff much, find it's mostly a waste of money. Had an old diesel sit for 9 years, ran rough as heck obviously on its old stale diesel fuel. Tossed half a bottle of this in, and filled the last half of the tank with fresh diesel and it runs better than when I parked it. Definitely buying a few more of this stuff.

### ⭐⭐ Review
*by O***H on 5 August 2025*

I don’t know, might be a just another way to put more money into your gas tank with no to little result. Can’t say. But might work.

## Frequently Bought Together

- Hot Shot's Secret P040416Z Diesel Extreme Clean and Boost - 16 fl. oz. (Packaging May Vary), Amber
- Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS)
- Hot Shot's Secret Original Stiction Eliminator 32 Fluid Ounce Bottle

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*