It would help if you would specify year and engine. All of the 4 cylinder 2.5 liter 4 cylinder engines use 4.2 US quarts.
4.4=0
5w-30
My 1997 legacy gt sedan takes 4.8 quarts of oil.
15w/40w synthetic
o2 subaru
5w30
1997 subaru impreza consume 5.8 litres of oil
Is the oil leaking and hitting exhaust? if so it is the o-ring in the oil pump. Subaru is known for that!
A 2002 Subaru Legacy uses standard 10w-30 weight motor oil. During the winter, a lighter weight oil may be desirable in particularly harsh locations.
As per the Subaru Legacy Service Manual: 5.5 Liters, 5.8 US qt or 4.8 Imp qt...
It is important to maintain the proper fluid levels in a car. The 1998 Subaru Legacy wagon holds 4 1/2 quarts of oil.
It takes 6.9 qts of oil.