Hot Shot's Secret P040464Z Diesel Extreme Clean and Boost - 64 fl. oz.

Run it in all my diesel equipment welder, truck, tractor and always notice a big difference after that tank of diesel is used. Noticeable performance and mileage gains Reduces smoke, noise, and rough idle. I believe it’s a powerful all-in-one cleaner and conditioner that actually earns its “extreme” name. Ideal for off-road, diesel truck owners, and anyone who wants to keep their engines running clean and strong.

Vraiment très surpris et très efficace, après seulement 100km j'ai vue la différence, le moteur tourne plus doux, le démarrage moteur est plus rapide, améliore la consommation de carburant , semble avoir un effet sur le PDF, je recommande ce produit sans craindre, dans mon cas, j'ai mis 2 tasse dans mon réservoir valable pour 10 000 kilomètres, acheter sans craintes

Works great. Just like every other review, this stuff STINKS! The wife spilled a bit in the garage and wow, spicey. Can even taste it if you breathe through your mouth. Started using in a 2021 wranger diesel in the spring of 2025 to see if it would lessen the regen cycle which had picked up in recent time. So far its working. Have not noticed any increase in fuel economy but the small regens have become fewer and its not doing the large passive regens nearly as much as it used to.

Strong smell. Product smell from engine bay under harder acceleration. Noticeable diesel clatter reduction and increased power, especially from stop and particularly in cold weather. Quicker overall pedal and engine response time during acceleration. 4 stars due to engine bay stink; could be a result of internal compartments being cleaned. I will buy again.

I added Diesel Extreme Clean and Boost to my truck’s tank, and the results were clear smoother idle, better throttle response, and it even seemed to run quieter. It’s easy to pour in, and one bottle treats a good amount of fuel. I like that it helps clean the injectors and gives a small bump in mileage. Great product to use as regular maintenance, especially before long trips.