I am not sure if anyone has heard of this but it cropped up in one of the "Wheeler Dealer" TV programs.

Its a new process that de-carbonises your engine from injectors to CATs and reduces emissions, that may be useful if you have any problems getting your car through an MOT.

Look here:

http://www.terraclean.co.uk/video.html

I had a chat with the blokes at the NEC Classic Car Show and took the plunge yesterday.

I did wonder if the process would work but you can see the results here:

http://www.flickr.com/photos/garyharman/sets/72157632136857283/

This is with a Marcos Mantis with a Mustang 4.6 32V engine, WITH OUT CATS. (Exhaust air recirculation bits also removed.)

After the process my car PASSED an MOT emissions test with out CATS.

Just thought it might be of use.

This was carried out by Grease Monkies, Eastern Road, Bracknell, RG12 2UP Tel: 01344 866999 (Owned by Ed China.)

The cost is £80+vat for up to 2ltr engines, £90+vat for larger engines.

The process takes around an hour in total, and excellent service.

If you book in say that they were recommended and you may get a discount.