---
product_id: 203045704
title: "Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon"
brand: "hot shot's secret"
price: "622.72 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Hot Shot's Secret"
url: https://www.desertcart.tn/products/203045704-hot-shots-secret-diesel-extreme-fuel-additive-1-gallon
store_origin: TN
region: Tunisia
---

# Cleans & protects fuel system Boosts cetane by up to 7 points Military-grade rust & corrosion defense Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon

**Brand:** hot shot's secret
**Price:** 622.72 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Unlock Extreme Diesel Power & Protection ⚡

## Quick Answers

- **What is this?** Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon by hot shot's secret
- **How much does it cost?** 622.72 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/203045704-hot-shots-secret-diesel-extreme-fuel-additive-1-gallon)

## 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

- • **Deep Fuel System Detox:** Eliminates injector deposits & varnish for peak engine health
- • **Drive Smoother, Longer:** Reduces DPF regenerations and extends engine life for worry-free miles
- • **Effortless Application:** Just 8 oz per 20 gallons—easy, mess-free fuel tank treatment
- • **Rust & Moisture Shield:** Advanced water dispersant with military-grade corrosion inhibitors
- • **Power-Boosting Cetane Surge:** Up to 7-point cetane increase for sharper combustion & more power

## Overview

Hot Shot's Secret Diesel Extreme Fuel Additive is a concentrated 1-gallon formula designed to clean and lubricate your entire diesel fuel system, boost cetane by up to 7 points for improved combustion and power, and protect against rust and moisture with military-grade inhibitors. Easy to use with 8 oz per 20 gallons, it treats up to 320 gallons, reduces injector deposits, and enhances overall engine performance for a smoother, more efficient drive.

## Description

Buy Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon | Treats 320 gallons. Cleans fuel systems and injectors while restoring diesel performance.: Fuel System Cleaners - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent product - Simply works ! Got great MPG out of California diesel
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 SYSTEM: 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086DWKK29 |
| Best Sellers Rank | #1,018 in Automotive ( See Top 100 in Automotive ) #6 in Diesel Additives #7 in Fuel System Cleaners |
| Brand | Hot Shot's Secret |
| Brand Name | Hot Shot's Secret |
| Customer Reviews | 4.7 out of 5 stars 5,809 Reviews |
| Included Components | Diesel Extreme 1 Gallon |
| Item Form | Liquid |
| Item Highlight | Treats 320 gallons. Cleans fuel systems and injectors while restoring diesel performance. |
| Item Type Name | Fuel Additive |
| Item Volume | 128 fluid ounces |
| Item Weight | 7.7 pounds |
| Manufacturer | Lubrication Specialties, Inc. |
| Material Feature | Unscented |
| Material Features | Unscented |
| Model Number | P040401G |
| Number of Items | 1 |
| Part Number | P040401G |
| Scent | Unscented |
| Size | 128 Fl Oz (Pack of 1) |
| Special Features | Concentrated Fuel Injector Cleaner |
| Specific Uses For Product | Diesel Fuel Additive |
| Surface Recommendation | Vehicle |
| UPC | 722512381513 |
| Unit Count | 128 Fluid Ounces |
| Warranty Description | 100% Money Back Guarantee |

## Product Details

- **Brand:** Hot Shot's Secret
- **Item Form:** Liquid
- **Material Feature:** Unscented
- **Scent:** Unscented
- **Specific Uses For Product:** Diesel Fuel Additive

## Images

![Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71hnqNpe-9L.jpg)
![Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon - Image 2](https://m.media-amazon.com/images/I/71WRENiK3eL.jpg)
![Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon - Image 3](https://m.media-amazon.com/images/I/61T4iXBWOXL.jpg)
![Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon - Image 4](https://m.media-amazon.com/images/I/81v94dUEjZL.jpg)
![Hot Shot's Secret Diesel Extreme Fuel Additive, 1 Gallon - Image 5](https://m.media-amazon.com/images/I/8139HD4HC-L.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

### ⭐⭐⭐⭐⭐ Excellent product
*by D***N on August 23, 2026*

Simply works ! Got great MPG out of California diesel

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ As Good As LM Super Diesel Additive but Better Value
*by H***S on March 24, 2025*

This stuff is amazing! I thought nothing could beat Liqui Moli Super Diesel Additive but this does on value for the money and the torque increase is as equal to SDA. I use this in my mint condition 2015 Golf TDI. I did not think anything could quiet my engine but after this I can barely hear it on idle yet it screams when I drop the foot pedal. I’ve used Costco’s premium diesel religiously for years but this significantly increased torque. It states to run it every 6,000 miles that’s every 12th tank of gas in my TDI. I use about 4.2 oz per tank of gas so it’s dirt cheap. My main goal is to keep carbon deposits at bay so the performance increase is legendary. I added about 2-5 mpg on average getting getting 50 mpg with gas saving driving including speed limit on freeway and coasting. When I’m done with this bottle I’m going to try the every day version and I’ll report back.

## Frequently Bought Together

- Hot Shot's Secret Diesel Extreme 1 Gallon, Concentrated Fuel System Cleaner, Diesel Fuel Additive, Injector Cleaner - Increases MPG & Restores Engine Performance
- Hot Shot's Secret - HSSEDT01G Everyday Diesel Treatment - EDT 1 Gallon - Treats Up to 3,200 Gallons
- Hot Shot's Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment for All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity, Protects & Extends Fuel System Life

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-02*