---
product_id: 314137044
title: "P040464Z Diesel Extreme Clean and Boost - 64 fl. oz."
brand: "hot shot's secret"
price: "€ 129.63"
currency: EUR
in_stock: true
reviews_count: 5
category: "Hot Shot's Secret"
url: https://www.desertcart.hr/products/314137044-p040464z-diesel-extreme-clean-and-boost-64-fl-oz
store_origin: HR
region: Croatia
---

# Boosts fuel efficiency by up to 10% Cleans and maintains diesel engines Treats up to 150 gallons of fuel P040464Z Diesel Extreme Clean and Boost - 64 fl. oz.

**Brand:** hot shot's secret
**Price:** € 129.63
**Availability:** ✅ In Stock

## Summary

> 🔥 Drive cleaner, go further, and dominate the road with Diesel Extreme Boost!

## Quick Answers

- **What is this?** P040464Z Diesel Extreme Clean and Boost - 64 fl. oz. by hot shot's secret
- **How much does it cost?** € 129.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/314137044-p040464z-diesel-extreme-clean-and-boost-64-fl-oz)

## 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

- • **Extreme Power Upgrade:** Unlock smoother starts and enhanced engine responsiveness with every tank.
- • **Fuel Mileage Maximizer:** Stretch every drop—noticeable improvements in fuel economy that save you money.
- • **Long-Term Fuel Stability:** Protect your fuel from degradation during storage for peak performance anytime.
- • **Maintenance-Free Engine Care:** Keep your diesel engine cleaner and quieter, reducing costly repairs and downtime.
- • **Universal Diesel Compatibility:** Perfect for trucks, tractors, welders, and all diesel-powered equipment.

## Overview

Hot Shot's Secret Diesel Extreme Clean & Boost is a concentrated cetane improver and fuel stabilizer designed to enhance diesel engine performance, increase mileage, and maintain engine cleanliness. Treating up to 150 gallons per 64 fl. oz. bottle, it reduces smoke, noise, and rough idling while extending fuel storage life—ideal for professional diesel users seeking reliable power and efficiency.

## Description

HSS Diesel Extreme Clean & Boost is a concentrated cetane improver which also contains a highly effective fuel stability package. It will tremendously upgrade power and performance in all diesel equipment, increasing mileage and providing maintenance economy. Storage stability of fuels will be greatly increased and diesel engines will be kept in a much cleaner, more maintenance-free condition. Treats 150 Gallons of fuel.

Review: Vraiment très surpris et très efficace, après seulement 100km j'ai vue la différence, le moteur tourne plus doux, le démarrage moteur est plus rapide, améliore la consommation de carburant , semble avoir un effet sur le PDF, je recommande ce produit sans craindre, dans mon cas, j'ai mis 2 tasse dans mon réservoir valable pour 10 000 kilomètres, acheter sans craintes
Review: Run it in all my diesel equipment welder, truck, tractor and always notice a big difference after that tank of diesel is used. Noticeable performance and mileage gains Reduces smoke, noise, and rough idle. I believe it’s a powerful all-in-one cleaner and conditioner that actually earns its “extreme” name. Ideal for off-road, diesel truck owners, and anyone who wants to keep their engines running clean and strong.

## Features

- Item Category: Auto Accessory
- Item Trademark: Hot Shot's Secret
- manufacturer: Hot Shot's Secret

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0053PLFYM |
| Batteries required | No |
| Best Sellers Rank | #31,798 in Automotive ( See Top 100 in Automotive ) #184 in Oil & Fluid Additives |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,737) |
| Date First Available | 18 February 2015 |
| Is assembly required | No |
| Item Weight | 454 g |
| Item model number | P040464Z |
| Item volume | 1893 Milliliters |
| Product Dimensions | 24.13 x 11.75 x 11.75 cm; 453.59 g |

## Product Details

- **Brand:** Hot Shot's Secret
- **Item volume:** 1893 Milliliters
- **Item weight:** 454 g
- **Number of Items:** 1
- **Unit count:** 64 Milliliters

## Images

![P040464Z Diesel Extreme Clean and Boost - 64 fl. oz. - Image 1](https://m.media-amazon.com/images/I/71epzJfCHpL.jpg)

## 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 M***L on 8 January 2026*

Vraiment très surpris et très efficace, après seulement 100km j'ai vue la différence, le moteur tourne plus doux, le démarrage moteur est plus rapide, améliore la consommation de carburant , semble avoir un effet sur le PDF, je recommande ce produit sans craindre, dans mon cas, j'ai mis 2 tasse dans mon réservoir valable pour 10 000 kilomètres, acheter sans craintes

### ⭐⭐⭐⭐⭐ Review
*by D***T on 24 October 2025*

Run it in all my diesel equipment welder, truck, tractor and always notice a big difference after that tank of diesel is used. Noticeable performance and mileage gains Reduces smoke, noise, and rough idle. I believe it’s a powerful all-in-one cleaner and conditioner that actually earns its “extreme” name. Ideal for off-road, diesel truck owners, and anyone who wants to keep their engines running clean and strong.

### ⭐⭐⭐⭐⭐ Review
*by M***S on 7 November 2025*

Works great. Just like every other review, this stuff STINKS! The wife spilled a bit in the garage and wow, spicey. Can even taste it if you breathe through your mouth. Started using in a 2021 wranger diesel in the spring of 2025 to see if it would lessen the regen cycle which had picked up in recent time. So far its working. Have not noticed any increase in fuel economy but the small regens have become fewer and its not doing the large passive regens nearly as much as it used to.

## Frequently Bought Together

- Hot Shot's Secret - P040464Z Diesel Extreme Clean and Boost - 64 fl. oz.
- Hot Shot's Secret HSS64Z Original Stiction Eliminator 64 Fluid Ounce Bottle, Green
- Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-04*