Old Car long distance?

Ok so I have a really old worn out car, its a 1994 Subaru Legacy with 25k miles on it, I have never had to repair anything on it transmission/engine wise and I am planning on driving it for 2.5 hrs this Saturday. It eats oil like a fat kid eating cake, I usually have to put a quart in it once a week from driving to and from work that's 30mins away. So is it wise to drive it that far or should I try to find some other mode of transportation?