Hot Shot's Secret Diesel Extreme 32 oz – Treats 80 Gallons – Concentrated Diesel Fuel Additive, Fuel System Cleaner and Injector Cleaner, Restores Engine Performance

Simply works ! Got great MPG out of California diesel

Hot Shot products are pretty good. They perform well with results that match their claims. This is no exception.

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

This pairs very well with my 2018 International 4300 Durastar box truck. It has hit the 600,000 mile club and keeps going strong. I have started noticing my fuel tank guage no longer reads correctly and almost took a stab at replacing the fuel assembly unit for a few hundred. I went ahead and got some of this HotShot Secret and poured a 1/4th or 1 Qt for my 70 gallon tank. Beleive it or not, my fuel guage had restored its range after one tank. This pattern remained for about 12,000 miles until it started happening again. Used another 1/4th and got another 15,000 miles. The pattern is slowly going away so this shows that the tank is in fact getting cleaned out which was ongoing with affecting my sensor. MPG has not seen a rise. If anything it has seen a dip from 9.1 down to 8.9. But if it means burning clean with injectors and such, this is not a loss. Effective and great savings for the gallon. Looks good and easy carry size. No stickiness to worry about.

Works as advertized

At 6,000 miles, I added Diesel Extreme to my new RAM 2500 Cummins 6.7. The truck is new, so I was not expecting any noticeable changes in performance, but wow, what a difference! On a trip home from camping, I added the specified amount of Diesel Extreme to my tank. When it came time to refuel again, I added EDT (I use it on every fill-up) and got back on the road.As I was driving, I realized the truck felt like it was running smoother and had a little extra power. I was thinking about this for quite a few miles, because I wanted to be sure I wasn't imagining an improvement. Well, I'm convinced there was a substantial improvement. I believe there was a 1-2 MPG increase and that seems to be a repeating pattern on each fill-up. I still notice more engine smoothness and a small bump in power.Whatever the case, one tank of diesel with Diesel Extreme cleared up my fuel system and increased performance. I was not expecting this, not at all! I'm giving this product two thumbs up!

This is my first review ever and I have bought thousands of things on Amazon. Have a 2012 International 4300. Regen light was always on and was running terrible. Ran this in the tanks a few times now running perfect and light off. AMAZING STUFF HIGHLY RECOMMEND!!

appears to be a good item. works well

awesome feel the burn increase

Muito bom para carros antigos movidos a Diesel S-500.Limpa bem a linha do combustível e o recipiente já vem com as medidas a serem colocadas.Vale a pena investir.

Works like a charm.

Wow! Actually works van does not rough idle and flew through mot with no mention of emissions like was the problem last year…buy it! But DO NOT spill it…it STINKS, wear gloves when using and don’t inhale fumes!

Excelente aditivo y funciona y limpia como lo explican, muy bueno