[..P]

My 1983 is about to turn over 160,000 and it runs as well today as I suspect it did when it was new. The smog testing on the car after tune up showed virtually no pollution whatsoever and I was quite amazed. Well there was "some" reading on the test so the test equiment was not broken, but the 30 year old bruiser was just about off the charts with barely a reading at all.

The high silicon aluminum blocks have a reputation for being basically indestructible, but how long do the pistons last?

Here is a good one for you, a friend who owned a 928 S4 had 268,000 miles on his car, he lead a Porsche rally event one day and I was the next car to follow and I never saw the first puff of smoke out the tail pipes. He then took it to the drag strip to see how it performed, and it did well, and then he sold it to another guy who continues to drive it today.

Regards,

Paul