my dad has one (we own a shop) we tried it once on the lil 4 banger and weren't that thrilled...we have had better results on bigger displacement engine..don't know why...

how long did you let it run on the four banger, 30 mins?

Longstreet what do they cost new? I see them listed around 1300.00+ US.

Places will do this for your car at a garage for about 175.00+

The guy in the video says this every year. I don't think I would save that much in gas.

https://www.youtube.com/watch?v=o4bbMCOZ9aw

motorvac caron cleaning.

this guys is a knob, it will do that but he left out the most important function, it will remove a alrge part of the carbon from the engine itself. years ago mechanics told us to take the car on a highway run to blow out the carbon, this does not work since the gas co. had to remoce parrifin additives, now the carbon sticks to the piston the valve ect. only two ways to get it out chemically lika this or as thayne said with his mini. disassembly and clean.i recommended to my customers about every 2-3 years or 30000kms. you will not save enough in fuel to offset the cost but it will extend the life of your engine.

do most garages have this or would you have to call around to find one that does?

longstreet, i am not sure, my dad did it....I wasn;t there that night...haha I play baseball too in a mens fastball league....

I can ask him tonight though...