---
product_id: 11207362
title: "Hot Shot's Secret Diesel Extreme 32 oz – Treats 80 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance"
brand: "hot shot's secret"
price: "€ 25.00"
currency: EUR
in_stock: true
reviews_count: 13
category: "Hot Shot's Secret"
url: https://www.desertcart.ie/products/11207362-hot-shots-secret-diesel-extreme-32-oz-treats-80-gallons
store_origin: IE
region: Ireland
---

# Cleans injectors & fuel system deeply Boosts cetane up to 7 points Treats 80 gallons per 32 oz Hot Shot's Secret Diesel Extreme 32 oz – Treats 80 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance

**Brand:** hot shot's secret
**Price:** € 25.00
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your diesel dominant—clean, power, protect! ⚡

## Quick Answers

- **What is this?** Hot Shot's Secret Diesel Extreme 32 oz – Treats 80 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance by hot shot's secret
- **How much does it cost?** € 25.00 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/11207362-hot-shots-secret-diesel-extreme-32-oz-treats-80-gallons)

## 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 Maintenance:** Just 8 oz per 20 gallons—easy to use during fill-ups or every 6,000 miles, keeping your diesel running clean and strong.
- • **Rust & Moisture Defense:** Military-grade corrosion inhibitors and water dispersants protect your engine from rust and moisture damage, extending engine life.
- • **Ultimate Engine Revival:** Restores peak engine performance by cleaning valves, pumps, rings, and pistons for a smoother, longer-lasting ride.
- • **Power-Packed Cetane Boost:** Increase combustion efficiency and engine power with up to 7 points cetane boost—feel the difference every mile.
- • **Injector & Fuel System Detox:** Eliminates stubborn internal and external diesel injector deposits, preventing costly repairs and downtime.

## Overview

Hot Shot's Secret Diesel Extreme is a concentrated diesel fuel additive designed to clean and lubricate your entire fuel system, boost cetane by up to 7 points for improved combustion, and protect against rust and moisture. Treating 80 gallons per 32 oz bottle, it effectively removes injector deposits and varnish, restoring engine performance and fuel efficiency with simple, regular use.

## Description

desertcart.com: Hot Shot's Secret Diesel Extreme 32 oz – Treats 80 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance : Video Games

Review: Trust worthy hotshot - Just purchased a diesel and wanted to keep it running well. This stuff works amazing, and can feel the difference. I would store it in the bed. Bottle leaks some and smells strong. Would not recommended storing in cab. Size of bottle is good for 1-2 fuel ups.
Review: Love This Stuff - This pairs very well with my 2018 International 4300 Durastar box truck. It has hit the 600,000 mile club and keeps going strong. I have started noticing my fuel tank guage no longer reads correctly and almost took a stab at replacing the fuel assembly unit for a few hundred. I went ahead and got some of this HotShot Secret and poured a 1/4th or 1 Qt for my 70 gallon tank. Beleive it or not, my fuel guage had restored its range after one tank. This pattern remained for about 12,000 miles until it started happening again. Used another 1/4th and got another 15,000 miles. The pattern is slowly going away so this shows that the tank is in fact getting cleaned out which was ongoing with affecting my sensor. MPG has not seen a rise. If anything it has seen a dip from 9.1 down to 8.9. But if it means burning clean with injectors and such, this is not a loss. Effective and great savings for the gallon. Looks good and easy carry size. No stickiness to worry about.

## 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 | B00IUGFZJW |
| Best Sellers Rank | #749 in Automotive ( See Top 100 in Automotive ) #5 in Diesel Additives #7 in Fuel System Cleaners |
| Brand | Hot Shot's Secret |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,614) |
| Date First Available | June 2, 2011 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2 pounds |
| Item model number | P040432Z |
| Manufacturer | Lubrication Specialties, Inc. |
| Manufacturer Part Number | P040432Z |
| Model | P040432Z |
| Product Dimensions | 8.76 x 3.13 x 3.13 inches |
| Special Features | Concentrated |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Hot Shot's Secret
- **Item Form:** Liquid
- **Material Feature:** Anti Oxidation
- **Scent:** Lavender
- **Specific Uses For Product:** Automotive Exterior

## Images

![Hot Shot's Secret Diesel Extreme 32 oz – Treats 80 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance - Image 1](https://m.media-amazon.com/images/I/61V6gAymUOL.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

### ⭐⭐⭐⭐⭐ Trust worthy hotshot
*by G***L on January 9, 2026*

Just purchased a diesel and wanted to keep it running well. This stuff works amazing, and can feel the difference. I would store it in the bed. Bottle leaks some and smells strong. Would not recommended storing in cab. Size of bottle is good for 1-2 fuel ups.

### ⭐⭐⭐⭐⭐ Love This Stuff
*by J***I on January 3, 2026*

This pairs very well with my 2018 International 4300 Durastar box truck. It has hit the 600,000 mile club and keeps going strong. I have started noticing my fuel tank guage no longer reads correctly and almost took a stab at replacing the fuel assembly unit for a few hundred. I went ahead and got some of this HotShot Secret and poured a 1/4th or 1 Qt for my 70 gallon tank. Beleive it or not, my fuel guage had restored its range after one tank. This pattern remained for about 12,000 miles until it started happening again. Used another 1/4th and got another 15,000 miles. The pattern is slowly going away so this shows that the tank is in fact getting cleaned out which was ongoing with affecting my sensor. MPG has not seen a rise. If anything it has seen a dip from 9.1 down to 8.9. But if it means burning clean with injectors and such, this is not a loss. Effective and great savings for the gallon. Looks good and easy carry size. No stickiness to worry about.

### ⭐⭐⭐⭐⭐ Increase MPG, make truck last longer!
*by J***. on January 24, 2026*

Works exactly like advertised! Boosted my trucks power and MPG while simultaneously decreasing regens. I use every 6K-8K miles to keep injectors clean and would advise anyone who wants to keep their diesel truck running smooth for the long run to do the same! You will not find a better product at this price point!

## Frequently Bought Together

- Hot Shot's Secret Diesel Extreme, 1 Qt (Packaging May Vary) (P040432Z)
- 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: 2026-03-01*