[A horse with no name]

Hi...Our '86 Carrera has 125K km on it -> 77.5K miles...It will smoke if overfilled, such as by a half a quart... Like others have mentioned, when doing an oil change, if I put the correct amount in - 10.5 US quarts - 9.9 litres, it will use a litre within say 600 km - 375 miles, so I only put 9 litres - 9.5 US quarts in during an oil change... I tend to keep the oil level around the middle of the dip stick; I then get, on an average, 1200 km -> 725 miles which is well within limits of what Porsche states for the 3.2's.

Note: The 84-87 911 Carrera technical specifications handbook (factory publication) notes that the oil consumption should be approx. 1.5 litres for every 1000 km (1.59 quarts every 621 miles).