Had a good look into it before I went ahead with the Terraclean, didn't find a great deal of bad reviews, nothing major at least. As I said previously, had it done on the VR at the end of the summer with no complaints.
Im still in two minds about the whole Terraclean service. Part of me wants to give it go and the other is saying its just another bullsh!t marketing scam...then there's the whole debate in whether it'll do more harm than good on an old high mileage coked up engine?
did you get better mpg?? that the main reason why im interested.