[mnmasotto]

I have a 1987 3.2 carrera with 75K original miles. The car has been extremely well cared for and never had any engine work. The car has been driven appropriately(no short trips) it whole life. The car has always had Valvoline 20-50W, changed every 3000 miles, until 50K when the preferred oil was swiched to Mobile 1 15-50W.

Recently the car has been using about one quart of oil every 750-800 miles. The car never, every smokes, even on start up!!!!!!!!! The car has no oil leaks. My mechanic (very well respected local air cooled Porsche specialist) said the plugs always look great!!! The car runs absolutely fantastic. The car has never been abused, raced or tracked. A recent leak down test was between 2-4% on all cylinders. A second opinion said that he was not sure what the culprit was? valve seals, ring?? He recommended a valve job and new rings (assuming the P & C's measure within tolerances)

Question number 1) Do I need to do anything? I do not mind spending the money on a new engine if it is really needed, but is it needed or is this normal for a 3.2 with 75K?

Question number 2) What could happed if I just drive it until is gets worse?

Question number 3) If I refer to the factory Porsche manual this is within normal limits??? However, others with recently rebuilt engines use much less oil. Who do I trust?? A local mechanic has looked at the data and says just drive it!!!