2003 Volvo XC90 Q&A
2003 Volvo XC90 Question: leaking oil from head gasket
You can continue checking oil with the knowledge that at any time the oil leak can get worse so don't get into a habit of checking only every now and then. If enough oil leaks out can get on exhaust, connections, hoses, motor mount bushings, etc. Plus if is leaking oil may be leaking coolant internally at a slow rate if can not see coolant on outside. Check coolant level also. - raiderron
Oil leaks from the all-wheel drive differential housing have been reported.
I have a coolant in the oil. Every couple days my coolant level drops down, when I check the oil level was up.