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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
For Your Every Summer RSVP, with Code: SUMMER15
Description
Hot Shot's Secret P040416Z Diesel Extreme Fuel AdditiveOrder the Hot Shot's Secret P040416Z Diesel Extreme Fuel Additive from GAP for your vehicle today. Diesel Extreme is a fully formulated, concentrated cleaner that removes all internal diesel injector deposits (IDIDs) including waxy and polymeric deposits. In addition, Diesel Extreme contains a top tier level of cetane booster, lubricity additive, and fuel stabilizer to provide maximum performance while cleaning the fuel system. Hot Shot's Secret
Order the Hot Shot's Secret P040416Z Diesel Extreme Fuel Additive from GAP for your vehicle today. Diesel Extreme is a fully formulated, concentrated cleaner that removes all internal diesel injector deposits (IDIDs) including waxy and polymeric deposits. In addition, Diesel Extreme contains a top tier level of cetane booster, lubricity additive, and fuel stabilizer to provide maximum performance while cleaning the fuel system. 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.
Engineered with specific detergents, Diesel Extreme will safely remove and prevent Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDIDs) and other forms of varnish and deposits that cause scarring and wear, which leads to premature failure of fuel system components, including fuel pumps and injectors. Diesel Extreme fuel additive also includes a powerful cetane improver, improving your diesel fuel's cetane rating by up to seven points, to improve combustibility, horsepower, and fuel economy. By improving combustibility, this diesel fuel treatment reduces the number of diesel particulate filter (DPF) regeneration cycles that are needed. Diesel Extreme also contains a lubricity enhancer to further reduce wear, a water dispersant, rust and corrosion inhibitors and a fuel stabilizer. Diesel Extreme fuel additive will improve your diesel's fuel economy, increase horsepower, clean injectors, improve cold starts, eliminate excessive black smoke, and improve reliability. This diesel cleaner additive is recommended for use in all diesel engines.
Hot Shot's Secret Diesel Extreme is formulated with specific detergents to safely remove and prevent Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID's) and other forms of varnish and deposits. Not all diesel additives on the market will remove IDIDs, as a special detergent is needed.
In order to effectively improve your diesel's fuel economy, horsepower and combustibility, your fuel system needs to be clean of deposits and run fuel with a high cetane rating. Diesel Extreme not only cleans exceptionally well, it also provides a powerful cetane boost of up to 7 points. This allows for the fuel to burn more efficiently, increasing performance while also reducing diesel particulate filter (DPF) regenerations. The lubricity additive in Diesel Extreme also increases your fuel's lubricity, improving protection and reducing wear. This helps combat the ill-effects of Ultra-Low Sulfur Diesel. Diesel Extreme is a fully-formulated 6-in-1 diesel additive that addresses both common and uncommon problems with diesel fuel, making sure your diesel is always running at peak performance.
1 quart treats 80 gallons of diesel fuel.
16 oz. bottle treats 40 gallons of diesel fuel.
Recommended Frequency:
Use one treatment of Diesel Extreme every 6000 miles.
Uses:
Diesel Extreme is extremely effective in middle distillate fuels to improve combustion and ignition efficiency, enhance fuel economy and maintain fuel in a clean, stabilized condition. Hot Shot's Secret Diesel Extreme is safe in all diesel engines: semi-trucks, pick-up trucks, farm equipment and autos.
Engineered with specific detergents, Diesel Extreme will safely remove and prevent Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDIDs) and other forms of varnish and deposits that cause scarring and wear, which leads to premature failure of fuel system components, including fuel pumps and injectors. Diesel Extreme fuel additive also includes a powerful cetane improver, improving your diesel fuel's cetane rating by up to seven points, to improve combustibility, horsepower, and fuel economy. By improving combustibility, this diesel fuel treatment reduces the number of diesel particulate filter (DPF) regeneration cycles that are needed. Diesel Extreme also contains a lubricity enhancer to further reduce wear, a water dispersant, rust and corrosion inhibitors and a fuel stabilizer. Diesel Extreme fuel additive will improve your diesel's fuel economy, increase horsepower, clean injectors, improve cold starts, eliminate excessive black smoke, and improve reliability. This diesel cleaner additive is recommended for use in all diesel engines.
Hot Shot's Secret Diesel Extreme is formulated with specific detergents to safely remove and prevent Internal Diesel Injector Deposits (IDIDs), External Diesel Injector Deposits (EDID's) and other forms of varnish and deposits. Not all diesel additives on the market will remove IDIDs, as a special detergent is needed.
In order to effectively improve your diesel's fuel economy, horsepower and combustibility, your fuel system needs to be clean of deposits and run fuel with a high cetane rating. Diesel Extreme not only cleans exceptionally well, it also provides a powerful cetane boost of up to 7 points. This allows for the fuel to burn more efficiently, increasing performance while also reducing diesel particulate filter (DPF) regenerations. The lubricity additive in Diesel Extreme also increases your fuel's lubricity, improving protection and reducing wear. This helps combat the ill-effects of Ultra-Low Sulfur Diesel. Diesel Extreme is a fully-formulated 6-in-1 diesel additive that addresses both common and uncommon problems with diesel fuel, making sure your diesel is always running at peak performance.
Features:
- Fuel Stabilizer
- Cleaner Injectors
- Top Tier Cetane Booster
- Improved Fuel Economy
- Comprehensive Cleaning
- Rust and Corrosion Inhibitors
Treat Ratio:
2 quarts treat 160 gallons of diesel fuel.1 quart treats 80 gallons of diesel fuel.
16 oz. bottle treats 40 gallons of diesel fuel.
Recommended Frequency:
Use one treatment of Diesel Extreme every 6000 miles.
Uses:
Diesel Extreme is extremely effective in middle distillate fuels to improve combustion and ignition efficiency, enhance fuel economy and maintain fuel in a clean, stabilized condition. Hot Shot's Secret Diesel Extreme is safe in all diesel engines: semi-trucks, pick-up trucks, farm equipment and autos.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
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Product Reviews
★★★★★ 5
Hubby’s Fave!
Color: Wistful Mauve Melange, Size: XX-Large, Color: Wistful Mauve Melange, Size: XX-Large
My husband lives in these comfortable performance quarter zips by Maelreg! He says they’re warm in the cool months, they fit great, can be worn with just about any slacks, joggers, or shorts. They come in many different colors and they fit the tall guys like my husband, whose 6’4” He orders 2XL.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Love them!
Color: Lavender Melange, Size: X-Large
True to size I wear a 2XL they fit great material is nice. perfect for the golf course or business casual. I have 4 different colors and always get compliments! Will definitely get more.
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Reviewed in the United States on May 10, 2026
★★★★★ 3
It's different. Not bad, but nothing special.
Color: Navy Melange, Size: XX-Large
The fit is good. I'd say medium weight. It's not quite as light as some of the microfiber pullovers I like to wear playing golf, and not quite as flexible. I'm not sure I like the decorative stitching. The stitching on the shoulders and along the sides makes it look like it's on inside out. Also, the material has kind of a paper feeling to it (for want of a better description). Overall it's decent looking, not a bad fit, not a bad feel, it just doesn't 'wow' me. Unless the price is better than it is now, and already having one, I doubt I'd buy it again.
Most of this is just my own opinion based on personal preference. The overall manufacturing quality seems very good. Someone else might think this is the nicest pullover they own.
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Reviewed in the United States on June 3, 2025
★★★★★ 5
Excellent quality and value
This is my 4th Maelreg 1/4 zip shirt. I've lost a lot of weight and looking for clothing that fits well and doesn't feel like a shirt from China. I found that the quality and fit are excellent. The fabric is soft, well made and slightly heavier than other 1/4 zips I've purchased on Amazon. The weight of fabric gives a quality feel. The styles of Maelreg pullovers are great. I get a lot of compliments on these shirts.
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Reviewed in the United States on January 8, 2026
★★★★★ 5
MAELREG Clothing Looks Great!
Love this quarter zip. MAELREG makes some comfortable, sharp looking clothing. Their golf apparel is fantastic. The value is worth it. Their shirts are true to size. I am 6', 215lbs and wear an XL, which fits nicely.
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Reviewed in the United States on February 16, 2026
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