Romydog,
Do you do oil analysis? Unless the engine lived in a desert 'preserved' for a number of years it falls into the category of 'not well used and likely to suffer corrosion'. You don't want to discover this problem as you are not quite clearing a hedge or gliding into a field!
For the older engine establishing a pattern with oil analysis every oil change can help detect when you have pushed on condition to the limit. It is only about $20 or so (and a competent mechanic to take the sample). When you read the accident reports of engine failure incidents, there are quite a few that wouldn't have happened if oil analysis was being undertaken.