There is also the 350ml bottle. I used it in a 2007 model Mercedes Sprinter van, which was showing intense smoke probably due to a large amount of carbon buildup in the engine and residues from unburnt diesel. I used it once, preferably in a half-full or one-third full tank, and after about a week the van was running much smoother and quieter, with a sweeter throttle response. It does what it promises, cleans all parts of the engine from fuel residues and also the turbo... I highly recommend it

It is neither for reducing consumption nor for better operation, etc. It does a specific job. It helps remove soot from the turbo, the EGR valve, and the oxidation catalyst. We add it before refueling, and then we 'run' the car a bit at higher revs and lower gear, to clear out the smoke. Or before a long trip so we can take advantage of the distance.

I used this specific product and although I did see a difference in performance, the car has excessive diesel consumption that it didn't have before with the obd2 diesel chip. I have been driving the car for two years and I didn't have such high fuel consumption

My car, after refueling with diesel, would turn off. Poor quality fuel. I used this specific product while emptying and replacing the old fuel with a little new one. Not only did the car work, but it didn't turn off again