Hot Shot's Secret Diesel Extreme 燃料添加剤 1ガロン

Works like a charm.

Wow, this is a must use for the modern Diesel vehicles. Our vehicle has over 250k kilometers and I was getting engine vibrations. Changed the fuel filter but the problem came back then I found out that the injectors needed cleaning. This fluid did the job. The only improvement that I suggest is the lid. When puring into into the funnel, I get some spills and I would have to wipe it with a cloth. It would have been great if it was offered in a bottle with premeasurement volume and a nozzle to attach to the tip so we can easily measure the volume used and pour without any spills!

This is a great product for my diesel truck

Second order of this product, it improves mileage and helps keep egr system clean.

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.