exactly the same. I got mine at 75k and I know the previous owner did not do it. I'm over 135k I don't remember exact milage. I still unsure about what the benefit really is to cleaning the valves....

 

As the valves get dirty, you are slowly losing power. A really, really dirty valve will disrupt the air flow going into that cylinder. This can also cause issues with cold-start, idle, etc.

Cleaning them will free up that lost horsepower and remove any hesitations, stumbles, etc while smoothing out your idle.