Injector Cleaning Treatments

A little while back on another thread (45564) I got into a conversation with Uncle about Nulon Injector Cleaner.

I am now on my fourth tank of diesel since then and using the treament.
I have found that
1 There is definitely much less smoke
2There has been an increase in power
3 the motor revs more freely.

I noticed the free-er revving the other day when i was in 3rd gear and accelerating from a set of lights up a slight incline. This engine would previously never get past 3000 rpm in 3rd. I thought it must have been limited to that and got used to that as my maximum. on this occasion i noticed it going slightly past 3000 and thought i would push it a bit. It went straight up to 4000 before i chickened out and changed up. I think i was doing about 90 kph, it was a 90kph zone btw....

I don't normally drive it this hard but as this was a new thing i was curious to see what would happen. I can only put it down to the additive as i haven't done anything else to the car.

So for $11 or 12 you get three tanks treatment which for the improvement i have seen is money well spent.

One thing occurred to me though, does this stuff affect the oil quality due to blow-by?