STP Diesel Fuel Treatment and Injector Cleaner (236 ml, 2 Pieces) (DFT2)

I was skeptical about this product. Not very comfortable adding this to Diesel Tank. Finally I made up my mind and added STP Diesel Fuel Treatment and Injector Cleaner in my Hyundai Verna 1.6 SX ( 8 years old and done 1,42,700 KM) with full tank of Diesel ( 40 Ltrs). Drove 500 KM. It really works. I could feel the engine is soft and responsive and reduction in noise. I used to get some Injector noise. That is almost gone. Very good product. I have one more piece which I am planning to use after 3000 KM.

Using since 2+ years in Tata Indica diesel engine when mechanic claimed that fuel pump overhaul needs to be done that comes to Rs. 30k approx. Red light warnings on odometer came down slowly over a period of time. The only dissatisfaction now is the growing cost. I purchased 12 boxes for Rs. 2800. Now it's Rs. 500 each; more than double in 2 years. What we don't calculate while checking mileage is the amount additionally we spent for this bottle. It's good product, no doubt.

- used it on my 1.4 TDCi ( stage-1 remapped ) Figo Diesel 2011 model - fill you tank full and add the entire bottle through the fuel lid ( just pour ) - you can start feeling the change after about 200km - silent engine , better pick up and more pulling felling. its a smooth and clean pull in those overtakes. - mileage depends on your driving style , but expect slight change in mileage ( say more ) since the pick up and power delivery becomes better and hence less gear shifts and which means more mileage. - use it once in a service cycle ( per year or 10k KM )

I have brought two of them in that one was damaged badly only 100ml left. packaging was very bad. coming to product its good we can feel the difference after 150 kms pickup is very good. I have not checked the mileage

The product worked as described and gave optimum results, it was used in a Toyota Innova BS4, which has done 100k+on the odo. This was the first fuel additive I've ever used and got pretty good results. The bottle says "Made in USA" Observations: 1. Engine detonation was greatly reduced, and also engine NVH levels. 2. Performance was slightly more, I could feel the increase in torque in the lower revs. 3. Couldn't notice any difference in fuel economy. 4. No warnings lights came up throughout the journey, and later as well. * Doesn't know what happens to the carbon which gets cleaned from the injectors or from the engine itself. (Hope it doesn't clog the catalytic converter".