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Hot Shot's Secret Diesel Extreme, 1 Qt (Packaging May Vary) (P040432Z) Amber, 32 Fluid Ounce

4.7 4.7 out of 5 stars 4,539 ratings

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Available at a lower price from other sellers that may not offer free Prime shipping.
32 Fl. Oz.

Purchase options and add-ons

Brand Hot Shot's Secret
Item Volume 946 Milliliters
Unit Count 32.0 Ounce
Surface Recommendation Metal
Special Feature Concentrated

About this item

  • Cleans Fuel System – Deeply cleans any diesel engine’s fuel system including injectors, cylinders, fuel lines, tank, and tank in one fuel treatment lasting up to 6,000 miles
  • Cleans Fuel Injectors – Safely removes and prevents Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID’s) and other forms of varnish and deposits
  • Boosts Cetane – Increases cetane by up to 7 points after the fuel system is fully cleaned, for an even more effective boost in combustion, fuel economy, and engine power while reducing DPF regens
  • Increases Mileage – Maximizes your MPG's and helps you save at the pump by improving engine performance and fuel combustion, so you can get the most out of your diesel fuel
  • Stabilizes and Prevents Rust, Disperses Moisture – Keeps diesel “healthy” using a military grade non-alcohol-based water dispersant plus rust and corrosion inhibitors
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Hot Shot's Secret Diesel Extreme, 1 Qt (Packaging May Vary) (P040432Z) Amber, 32 Fluid Ounce
Hot Shot's Secret Diesel Extreme, 1 Qt (Packaging May Vary) (P040432Z) Amber, 32 Fluid Ounce
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Price-21% $18.97
List:$23.99
$24.95-14% $42.90
List:$49.90
$15.99
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Easy to use
4.6
4.6
4.6
4.6
Value for money
4.4
4.2
4.2
4.5
Mileage
4.4
4.1
4.1
4.4
Sold By
Amazon.com
Archoil, Inc
Archoil, Inc
Amazon.com
form
Liquid
Liquid
Liquid
surface suggestion
Metal
Metal
volume
946 milliliters
12 fluid ounces
12 fluid ounces
12 fluid ounces

From the manufacturer

 Hot Shot's Secret Diesel Extreme Infographic
Hot Shot's Secret Diesel Extreme Pouring

Hot Shot's Secret Diesel Extreme

Hot Shot’s Secret Diesel Extreme is a premium 6-in-1 diesel additive, containing the most concentrated detergent formula on the market. Diesel Extreme fuel additive is formulated to resolve issues related to Ultra-Low Sulfur Diesel and greatly improve your truck’s performance and fuel economy.

Diesel Extreme fuel additive will improve your diesel’s fuel economy, increase horsepower, clean injectors, improves cold starts, eliminate excessive black smoke and improve reliability. This diesel cleaner additive is recommended for use in all diesel engines.

Increase mileage & diesel fuel lubricity

Cleans cylinders, fuel lines, tank & disperses moisture

Reduces need for DPF regeneration cycles up to 50%

Exceeds top tier detergency requirements

Boosts cetane up to 7 pts

Cleans injector tips

Eliminates black smoke & improves cold starting

Restores throttle response

Hot Shot's Secret Diesel Extreme Lifestyle

Product Description

Diesel Extreme Clean & Boost is a fully formulated and concentrated fuel system cleaner and engine cleaner. Designed to remove deposits and improve the performance of all types of diesel engines, from semi-trucks to RV's, this diesel injector cleaner removes all internal diesel injector deposits (IDID's) and external diesel injector deposits (EDID's) as well as waxy and polymeric deposits that can clog the fuel filter. Our powerful diesel additive and fuel cleaner cleans out injector tips, cylinders, fuel lines and tanks, all while dispersing moisture to deliver a more efficient system. Once the fuel system is clean, Diesel Extreme contains several premium additives to enhance performance. A cetane boost can improve cetane ratings by 7 points for better combustibility, fuel economy and horsepower. With improved combustibility, you can reduce the number of diesel particulate filter (DPF) regeneration cycles required. Diesel Extreme works for all diesel engines, including: Semi-Trucks Pick-Up Trucks Farm Equipment Construction Equipment Marine Diesel Vehicles Racing Vehicles RV's Any Small Diesel Engine

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Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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What's in the box

  • 1 QT BOTTLE
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    4,539 global ratings

    Customers say

    Customers like the efficiency, quality and mileage of the auto accessory. They mention that it increases fuel efficiency, idles and accelerates more smoothly, and cleans the entire system. They are also satisfied with noise, value, and performance. That said, some complain about the seal. Opinions are mixed on smoke.

    AI-generated from the text of customer reviews

    141 customers mention128 positive13 negative

    Customers like the value of the auto accessory. They say it's a good product, worth the shot, and well worth the money. Some say it saved them a bunch of time and money.

    "...This stuff is INCREDIBLE!!..." Read more

    "...If you're worried about your CP4 fuel pump grenading, this is a low cost insurance. Takes the place of the lost sulfur in this low sulfur diesel." Read more

    "Engine ran sluggish added this to it and cleared right up. Pretty cheap and works great" Read more

    "...It seemed to smooth out the idle in Duramax. Seems like cheap insurance and I like that they have independent lab tests." Read more

    121 customers mention113 positive8 negative

    Customers are satisfied with the performance of the auto accessory. They mention that it works amazing, it runs better, sounds better, and gets better mileage. The truck runs very smoothly and does not seem to struggle as much. Overall, customers are happy with the product and recommend it to others.

    "First time trying this stuff. A little pricey, but results are noticeable. Quieter, more power, and smoother idle...." Read more

    "From usa to netherlands in a matter of days, excellent work." Read more

    "What more can I say? It helps improve my mileage and extend my injector life" Read more

    "It works great. Engine noise is changed definitely perform better than before. Great product" Read more

    101 customers mention92 positive9 negative

    Customers are satisfied with the mileage of the auto accessory. They mention that it improves the engine's performance and throttle response, resulting in a smoother idle and improved mileage. Some customers also report that the engine does not regen as much.

    "...A very noticeable difference in engine sound, acceleration and a reduction in black smoke. This stuff is INCREDIBLE!!..." Read more

    "...Quieter, more power, and smoother idle. Used both in 6.7 Cummins and MF tractor. Will purchase again." Read more

    "The Hot Shot Diesel Extreme Clean and Boost restored a smooth idle on my Mercedes Benz 240D. The product cleaned the diesel injectors and the..." Read more

    "What more can I say? It helps improve my mileage and extend my injector life" Read more

    48 customers mention42 positive6 negative

    Customers like the efficiency of the auto accessory. They mention that it increases fuel efficiency, runs much smoother, and helps to restore fuel mileage. Some customers also mention that the product helps to keep their diesel running.

    "...A little pricey, but results are noticeable. Quieter, more power, and smoother idle. Used both in 6.7 Cummins and MF tractor. Will purchase again." Read more

    "Increased fuel efficiency" Read more

    "Really does seem to help power & mileage on my CAT powered truck" Read more

    "...And, seems it doesn't consume nearly as much fuel." Read more

    32 customers mention32 positive0 negative

    Customers are satisfied with the quality of the auto accessory. They mention that it cleans the entire system, increases performance, and eliminates Diesel Particulate Filter problems. It is a maintenance item that keeps things clean and in shape. Some customers also say that it runs a lot cleaner and smooth.

    "...restored a smooth idle on my Mercedes Benz 240D. The product cleaned the diesel injectors and the missing disappeared...." Read more

    "Seems to keep the old injectors clean when running on fuel they weren’t designed for" Read more

    "...2. Similar problem with a JCB Backhoe with a CAV pump.3. Cleaned up a rough idle and helped with a hard start in a Cat forklift.4...." Read more

    "...in their turbo diesel engines (N47), but this has made my engine run better and cleaner...." Read more

    23 customers mention20 positive3 negative

    Customers like the noise of the auto accessory. They mention that it runs quieter, softer, and has a very noticeable difference in engine sound. Some customers also mention that there's less valve rattle and that it sounds and runs better than new.

    "...A very noticeable difference in engine sound, acceleration and a reduction in black smoke. This stuff is INCREDIBLE!!..." Read more

    "...A little pricey, but results are noticeable. Quieter, more power, and smoother idle. Used both in 6.7 Cummins and MF tractor. Will purchase again." Read more

    "It works great. Engine noise is changed definitely perform better than before. Great product" Read more

    "...I can attest to good throttle response, quieter injectors and less valve rattle in both diesels I own.. However, there's no noticeable difference..." Read more

    47 customers mention30 positive17 negative

    Customers are mixed about the smoke produced by the auto accessory. Some mention that it improves acceleration and does not smoke at idle or during acceleration, while others say that there is zero improvement and the exhaust odor can choke you. Some customers also mention that the truck started to put out dark black smoke when it started and when it was hazing out the exhaust. Overall, the opinions are mixed and it's recommended to read the reviews carefully before making a purchase.

    "...noticeable difference in engine sound, acceleration and a reduction in black smoke. This stuff is INCREDIBLE!!..." Read more

    "...At this point, I still had white smoke and one bad balance rate (cylinder 1). I checked the wire and replaced it. I had still the issue...." Read more

    "...Stopped skip or rough start idle. Reduced black smoke when leaving stop lights. Increased fuel miliage while towing my 5th wheel...." Read more

    "...Smooth less smoke and more power it works great!" Read more

    13 customers mention0 positive13 negative

    Customers are dissatisfied with the seal of the auto accessory. They mention that the bottle leaks, the lids seal very poorly, and the contents run down the bottle.

    "I use this in my Jetta TDI. First of all, the bottle/lid is awful. It will leak out and the product stinks with a capita S...." Read more

    "This bottle leaked after I opened it. Bad. Now my Duramax has this horrible sweet smell almost like diesel fuel...." Read more

    "...9nly complaint I have is it arrived leaking this time and last the lids don't prevent leaks." Read more

    "...Even when using a small funnel, the contents ran down the bottle, my pants legs, shoes, ground and my Jeep...." Read more

    Quiets engine noise!
    5 Stars
    Quiets engine noise!
    It decreased engine noise on my 2000 Dodge Ram 2500 Cummins dramatically. Cleaned up smoke and engine purrs like a kitten. So enjoyable to have a quiet reliable well running 700hp street diesel. Thanks for the great product!!! Easily $20,000 invested. I will only trust the best for my highly modified engine! After hooking up Snow water meth 25%/75% looking to make 800 hp. Hotshot will more than likely make this possible. Great product!!!
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    Top reviews from the United States

    Reviewed in the United States on February 6, 2024
    Size: 32 Fl. Oz.Verified Purchase
    3 people found this helpful
    Report
    Reviewed in the United States on January 6, 2024
    Size: 32 Fl. Oz.Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on February 17, 2024
    Size: 1 Gallon (Pack of 1)Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on December 5, 2023
    Size: 32 Fl. Oz.Verified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on February 29, 2024
    Size: 32 Fl. Oz.Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on November 12, 2023
    Size: 16 Fl. Oz.Verified Purchase
    7 people found this helpful
    Report
    Reviewed in the United States on December 3, 2023
    Size: 32 Fl. Oz.Verified Purchase
    3 people found this helpful
    Report
    Reviewed in the United States on January 2, 2024
    Size: 32 Fl. Oz.Verified Purchase

    Top reviews from other countries

    Translate all reviews to English
    Client d'Amazon
    5.0 out of 5 stars Hot Shot's Secret Diesel Extreme Clean and Boost P040416Z - 473 ml
    Reviewed in Canada on March 15, 2024
    Size: 16 Fl. Oz.Verified Purchase
    Nils
    5.0 out of 5 stars Best diesel additive
    Reviewed in Canada on February 24, 2024
    Size: 64 Fl. Oz.Verified Purchase
    Denio
    5.0 out of 5 stars Importado dos EUA e é ótimo.
    Reviewed in Brazil on February 1, 2022
    Size: 32 Fl. Oz.Verified Purchase
    Joseph Brown
    5.0 out of 5 stars Definitely one of the best
    Reviewed in the United Kingdom on March 7, 2023
    Size: 32 Fl. Oz.Verified Purchase
    2 people found this helpful
    Report
    Naski
    1.0 out of 5 stars Tres cher
    Reviewed in France on January 29, 2021
    Size: 32 Fl. Oz.Verified Purchase