why is this car burning so much oil?
reason one: excessive oil ring wear from the past: bad oil will kill your ring sin your early turbodiesel. compression and power were excellent. no blakc or white smoke, just blue. solution: amsoil 15w40 synthetic. doesn't burn easily and when mixed with an additive will usually not deteriorate too fast.
poor oil in it initially: when we got the car, i noticved the oil wa slow so i added a quantity of my fav, shell rotella 15w40. the problem is that shell burns off, as does crappy autozone 15w40 fleet maintenance. the oil quality will have contributed heavily to this.
finally, turbo problems: this car has a good turbo, but its PCV valve might be defective, causing more oil that normal to find its way into the intake and thus into the turbo. more burnoff...ladida
the ca rhas new valve seals...which is another cause of mercedes oil burning.
but my point is...george will have to be careful: this car burns oil.