I have been told this engine cleaning solution is very good , anyone had it done
Been quoted £96 to have it done
Unless they will use the induction cleaning kit then I would say save your money.
The inlet valves are what need treating, and this does not reach that part of the engine .
It does the rest of the fuel/exhaust circuit , but if your trying to either improove your idle of general fuel consumption, them ask the Terraclean dealer if he has this available to use, if not then walk away.