We heard that this product only needs to be used twice a year, does anyone know if it says this on the bottle?

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

Would this product be suitable for a 1.6 Diesel engine in our family car?

I use it it a 1.9 TDI and 2 7.3 diesels.

Has anyone used this with a TDI with DEF / Urea?

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

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?

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.

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Hot Shot’s Secret Diesel Extreme 1 Gallon – Treats 320 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance

Hot Shot’s Secret Diesel Extreme 1 Gallon – Treats 320 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance

Product ID: 203045704

Details

Brand
Hot Shot's
Item Form
Liquid
Material Feature
Unscented
Scent
Unscented
Specific Uses For Product
Diesel Fuel

🧼Cleans fuel injectors & system

⚙️Boosts cetane by up to 7 points

🛢️Treats 320 gallons

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VT32834

Duties & taxes included

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Hot Shot's
Item Form
Liquid
Material Feature
Unscented

Description

🔥 Unlock your diesel’s hidden power and never settle for less!

TRUSTED BY PROS - Top-ranked diesel additive with 4.7-star rating and proven real-world results
ENGINE REVIVAL POWER - Deep cleans valves, pumps, pistons & injectors for peak performance
EFFORTLESS MAINTENANCE - Just 8 oz per 20 gallons—easy pour, no mess, no hassle
RUST MOISTURE SHIELD - Military-grade inhibitors protect your engine from corrosion and water damage
FUEL EFFICIENCY BOOSTER - Up to 7-point cetane increase means smoother combustion & better mileage

Hot Shot’s Secret Diesel Extreme is a concentrated diesel fuel additive that treats up to 320 gallons, cleaning and lubricating your entire fuel system. It boosts cetane by up to 7 points for improved combustion, reduces injector deposits, and protects against rust and moisture. Trusted by professionals and backed by thousands of 5-star reviews, it’s engineered to restore engine performance and extend equipment life with simple, effective dosing.

Specifications

ASIN	B086DWKK29
Best Sellers Rank	#1,558 in Automotive ( See Top 100 in Automotive ) #6 in Diesel Additives #11 in Fuel System Cleaners
Brand	Hot Shot's Secret
Brand Name	Hot Shot's Secret
Contains Liquid Contents?	Yes
Customer Reviews	4.7 out of 5 stars 3,933 Reviews
Included Components	Diesel Extreme 1 Gallon
Item Form	Liquid
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	128.0 Fluid Ounces
Warranty Description	100% Money Back Guarantee

Reviews

D**I

21.11.2025

J**I

3.01.2026

B**L

23.03.2026

B**D

28.04.2026

T**S

10.12.2019

G**L

9.01.2026

A**H

24.03.2026

G**N

14.04.2026

C**S

22.10.2025

G**C

13.11.2024

D**L

1.02.2022

H**L

22.11.2024

T**R

26.07.2025

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VT32834

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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