I used LM engine oil flush, fuel system cleaner, fuel injector cleaner - all good, was very pleased, but if your engine is pretty healthy (have new piston rings, not big oil consumption) - i wouldn't go with ceratec; if condition of block is not too perfect & you didn't changed any piston parts - it might help.
I read somewhere, that after people stopped using it - oil consumption increased (not all), so it's pretty hard to say.