advice please, i am probably the only person on this site who bought the 172 with power not top of the list, so my question is, if I do not regularly go to 6500 revs etc, what will happen to the the engine, I tend to stick to around 4000, I have a sub concious thought that thrashing the engine means damaging it, will the engine become a bit blocked up , or is 4000 enough to keep it clear, all thoughts welcome..
adam b.