"tony roberts" wrote in message
news:nospam-298825.23052207092004@shawnews...
TCP themselves, and many knowledgeable sources,
all say that you should never use TCP in a higher than 1000 TBO engine.
NTSB reports site TCP (and MMO) as causes of accidents in high time
engines, where crap has been dissolved/dislodged

TBO or SMOH? What about if you've been using it from the start?

Paul