[Casca]

Well, I will probably be seafoaming my N52 motor soon. It just started ideling rough, misfire code, CEL, engine shaking and so on. I was/am planning to change the PCV and clean as much sludge as I can manually when I started reading about seafoam. Think I will give that a go first to see if it does anything.

I work on military airplanes and as part of our weekly preventitive maintenance for carbon build up, we hook up all our motors to a compressor wash cart that sprays a mixture of mostly water+...somekindasoap/cleaner, while the motor is being turned by the starter. Let it sit....then start the motor and get lots of smoke out the back. Sound familier? These maintenance proceedures where thought out by engineers for Lockheed, Rolls Royce, the USAF and many others. They actually want the motors to last indiffinently and not just long enough to be out of warranty.

Also, you ever clean tar like, grease, gummy, caked on sludge with a solvant you spray on and wipe off with a towel? I did, doesn't work that great and is alot of effort. Then I got a steam cleaner.....cleans that shit easily with very little effort compared to how I was doing it before. I'm not sure, but it's possible that the seafoam is heated to steam and is worked through the motor as steam.

Will report back if the seafoam gets my barely running bimmer smoothed out. Hopefully that will be enough proof that it actually does something.