quote:
Originally posted by rodsob:
Help! I have a 95 850 Turbo with a voracious appetite for oil. The car has 170k miles. The oil has been changed every 3k so it has been well maintained. Recently, I've had to add about a quart a week. I even tried switching to 20w50 oil. I thought it could be the PCV valve but I can't even find it. The car does leak a little from the oil pan gasket but not enough to leak a quart a week. There does not seem to be any blue smoke coming from the tailpipe either. I once had to reconnect a tube coming from the engine to the intake manifold that feeds the turbo because it came off. I noticed a bit of oil in that tube. Could it be that something is clogged somewhere and that more oil than normal is being fed into the turbo? Help!
Not sure if the turbo has a PVC valve but if it does it be off a hose connected to the air intake hose comming from your airbox I think. If it is stuck it may actually smoke fumes. That would make it easier to find! There is another seal I read about that will blow if there is too much pressure built up inside the motor, I'll try to find again what that was. If something is blocked it causes seals to blow and leak/burn more oil. I heard that a telltale sign is if the oil dipstick gets blown upword out of it tube! Definately too much back pressure.
If not that than maybe rings but I kinda doubt that sinse there is no smoke. I guess the valve seals may leak a bit too, that sounds excessive though.
Well, we'll see what others think.