Why would a 1993 Subaru Loyale 1.8 liter with 160 thousand miles use half a quart oil a week?
Some engines will consume some oil (by the rings most likley). A quart in a thousand miles is cosidered normal by "new car dealer's ". Those motors were prone to leak also. So if no leaks I would suspect it going out tailpipe . converter will shield visible smoke. oil is sometimes cheaper to add than to do a major repair. just keep it full and you will be fine. 576,600 miles is the mileage I changed the motor on a 89 gl wagon. It burned a Qt between oil changes after 300,000. Try switching to 15w40 to help with oil burning. 15w40=576,600 miles
Should you change out any parts on a two thousand and one Subaru Forester with eighty thousand miles?
(50 mile/gallon) x (1.609344 km/mile) x (1 gallon/3.7854 liter) = 21.26 km/liter We just noticed that this is not what the question asked, but it's such an elegant solution that we decided to leave it here anyway. The answer to the question is: (50 miles/gallon) x (gallon/3.7854 liter) = 13.209 miles/liter (rounded)