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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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Hot Shot's Secret Diesel Extreme – 1 Gallon –Diesel Fuel Additive – Concentrated Fuel Injector Cleaner – Cetane Booster – Increases Mileage – Eliminates Black Smoke

Hot Shot's Secret Diesel Extreme – 1 Gallon –Diesel Fuel Additive – Concentrated Fuel Injector Cleaner – Cetane Booster – Increases Mileage – Eliminates Black Smoke

Product ID: 453477869

Details

Brand
Hot Shot's
Item Form
Liquid
Item Volume
128 Fluid
Item Weight
7.74 Pounds
Material Feature
Alcohol Free
Number of Items
1

⛽Boosts cetane by 7 pts

🛡️Prevents rust & disperses moisture

🛢️Cleans fuel system up to 6,000 miles

Description

🔥 Unlock Extreme Diesel Power & Efficiency ⛽

DEEP CLEAN POWER - One treatment cleans injectors, cylinders, fuel lines & tank for up to 6,000 miles—keep your diesel engine pristine.
FUEL ECONOMY MAXIMIZER - Enhance MPG and save at the pump with optimized fuel combustion and engine efficiency.
RUST MOISTURE DEFENSE - Military-grade water dispersant plus rust inhibitors protect your fuel system from corrosion and damage.
UNIVERSAL DIESEL SOLUTION - Perfect for everything from semi-trucks to marine engines—join thousands of pros who trust Diesel Extreme.
CETANE BOOSTED PERFORMANCE - Increase cetane by up to 7 points for sharper combustion, more power, and fewer DPF regens.

Hot Shot's Secret Diesel Extreme is a concentrated diesel fuel additive that deeply cleans your entire fuel system, boosts cetane by up to 7 points, and improves mileage while preventing rust and moisture damage. Designed for all diesel engines, it delivers up to 6,000 miles of enhanced performance and cleaner combustion, reducing black smoke and DPF regeneration cycles.

Specifications

ASIN	B086DWKK29
Brand	Hot Shot's Secret
Brand Name	Hot Shot's Secret
Contains Liquid Contents?	Yes
Customer Reviews	4.7 out of 5 stars 494 Reviews
Included Components	Diesel Extreme 1 Gallon
Item Form	Liquid
Item Type Name	Fuel Additive
Item Volume	128 Fluid Ounces
Item Weight	7.74 Pounds
Manufacturer	Lubrication Specialties, Inc.
Material Feature	Alcohol Free
Material Features	Alcohol Free
Model Number	P040401G
Number of Items	1
Part Number	P040401G
Scent	Unscented
Size	3.79 l (Pack of 1)
Special Features	Concentrated
Specific Uses For Product	--
Surface Recommendation	Metal
UPC	722512381513

Reviews

J**N

Great product

Works like a charm.

2.08.2026

B**R

Must Use Fuel with Modern Diesel Engines!

Wow, this is a must use for the modern Diesel vehicles. Our vehicle has over 250k kilometers and I was getting engine vibrations. Changed the fuel filter but the problem came back then I found out that the injectors needed cleaning. This fluid did the job. The only improvement that I suggest is the lid. When puring into into the funnel, I get some spills and I would have to wipe it with a cloth. It would have been great if it was offered in a bottle with premeasurement volume and a nozzle to attach to the tip so we can easily measure the volume used and pour without any spills!

20.07.2026

H**A

Diesel

This is a great product for my diesel truck

13.06.2025

A**R

Great stuff

Stuff works great cleaned out my engine now I have 853,000 miles on it DD13

5.09.2026

G**N

Great Product

Second order of this product, it improves mileage and helps keep egr system clean.

24.05.2023

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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