I just learned about this service myself through a forum for my other car. I've got no experience with it myself but am in awe based on what I've read. Supposedly, Pat Goss from Motorweek has featured it on his show a couple of times and recommends periodic treatment every 35K or so. For what it's worth, here's a link to that thread, LOTS of posts with about 2 years worth of testimonials.
Sounds too good to be true, huh? I'm gonna do some more reading up on it, was hoping to find more here. Unless I find a lot of negatives, I think I'm gonna take the plunge and give it a try on my 94 GXE with 96,000 miles on it, assuming I can find a shop nearby with the equipment.
Oh yeah, the thread refers specifically to the Motorvac Carbonclean system. Looks like cost runs anywhere from $75 to $200 depending on how much solution they run through your system. Other recommendations from the thread:
- make sure they use the proper solution, normally labelled either "Motorvac" or "Carbonclean" or some reference to "Parker" (the manufacturer).
- baby your car after the treatment, 1 or 2 days, because there is still some residual solution at work.
Here's another good link:
Like I said, I've got absolutely no personal experience with the system, just repeating a common theme I stumbled across. And as that last link states, the procedure will "restore performance, restore smoothness, and restore efficiency".
Good luck, I'm curious to hear what kind of results you get regardless of the method used.
-- Tommy T.