The Hot Shot's Secret Diesel Extreme Fuel Additive and Injector Cleaner is a fully formulated, concentrated cleaner that removes all internal diesel injector deposits (IDIDs), including waxy and polymeric deposits. In addition, the Diesel Extreme fuel additive contains a top tier level of cetane booster, lubricity additive and fuel stabilizer to provide maximum performance while cleaning the fuel system. To maintain the system cleanliness and performance, use EDT additive daily on the fuel side and STICTION ELIMINATOR on the oil side of your engine. Use 8 oz. of Diesel Extreme per 20 gal. of fuel.

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

Diesel fuel additive exceeds top tier detergency requirements
Boosts cetane up to 7 pts
Cleans injector tips
Eliminates black smoke & improves cold starting
Restores throttle response
Injector cleaner that cleans cylinders, fuel lines, tank & disperses moisture
Increases mileage & diesel fuel lubricity
Reduces need for DPF regeneration cycles up to 50%
Money back guarantee
This diesel fuel additive is for use in all diesel engines (including tier 4 compliant): Semi-trucks, pick-up trucks, farm equipment & autos; effective in all diesel engines including Ford Powerstroke, Dodge Cummins, GM Duramax, Saab, Volkswagen, Audi

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73 reviews with 5 stars.

3 reviews with 4 stars.

0 reviews with 3 stars.

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4 reviews with 1 star.

Overall Rating

4.8

8 out of 8 (100%) reviewers recommend this product

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Summary of Reviews

AI-generated from customer reviews, which may include incentivized reviews.

The product appears to be an effective diesel fuel additive that improves vehicle performance, including smoother idling, better throttle response, increased fuel efficiency, and reduced soot emission...

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1 to 4 of 80 Reviews .

1 – 4 of 80 Reviews

Anonymous

Review 1

5 out of 5 stars.

Keeps the Check Engine Light OFF

8 months ago

Great product for the Diesel Engine keeps engine clean reduces soot no DPF problems keeps the truck out of the shop

Originally posted on Hot Shot’s Secret

Neil

Louisiana

Review 1

Age55 to 64

GenderMale

4 out of 5 stars.

First time uses.

10 months ago

Trying this product for the first time. Will update later.

Originally posted on Hot Shot’s Secret

Lewis

Ranger ga

Review 1

Age45 to 54

GenderMale

5 out of 5 stars.

Old girl a new life

a year ago

I've heard nothing but good things about these guys products, so I said I'll try them out. I ordered a jug and put some in a 260k mile 7.3 that had never seen anything in its life but diesel and 15w40. I rescued the old girl from going to the scrap yard. With some love and hot shots additives she's sounding better than ever. I'm using the oil,trans, and fuel. But as of right now this stuff is doing what it promises.

Yes, I recommend this product.

Originally posted on Hot Shot’s Secret

Summerville SC

Reviews 2

5 out of 5 stars.

Equipment Running like a new Sewing Machine

a year ago

I was absolutely amazed at the fast results after adding this product to fuel tank.

SweepstakesYes

Yes, I recommend this product.

Hot Shot's Secret 1 gal. DIESEL EXTREME Injector Cleaner and Cetane Boost

Neighbor’s Club Members earn points with purchases.

Hot Shot's Secret 1 gal. DIESEL EXTREME Injector Cleaner and Cetane Boost

Neighbor’s Club Members earn points with purchases.

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Reviews

Rating Snapshot

Overall Rating

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Thank you for your feedback

Keeps the Check Engine Light OFF

First time uses.

Old girl a new life

Equipment Running like a new Sewing Machine