Well, the filter would need changed out occasionally Dave, so let's not let him turn it into tar coating the filter media...
Amazing how quick a well maintained car can go down, seen it happen with nicely maintained cars that get a new owner that doesn't maintain them or change oil and filter anything close to a reasonable number and if they put many miles on it,v4 years and it is a car giving them trouble, if not sooner. They bad mouth the car and don't connect it is their care (or lack there of) that put it there.
Subaru makes good cars, by and large, a few models weren't as good as the general lot.
I’ve got 3 Subaru’s David, the FWD Liberty (Legacy in the US) that I bought for $400 because the owners had a “Mobile Mechanic” change the timing belts and he fcuked it up and just left them with a non runner. That model engine is “Non interference” so I asked the seller if I could fix it in his driveway, and redid the timing and drove it home.
My sister needed a car so I gave it to her in 2014 and it’s still going well. I then bought another Liberty that someone had converted with a GT twin turbo engine and running gear, but the young bloke who bought it blew a head gasket, so I bought it for $500 and had the engine rebuilt. My youngest son fell in love with it so bought it off me, but a young Asian guy, driving a Merc clobbered him and wrote it off. I’d insured it for $5K, so my boy used the insurance money and a bit more to buy the 2002 B4 GT twin turbo beast, and eventually traded it to me as part payment for my 2015 Ford Territory V6 diesel that I leased, then bought from new.
The old daily driver 1995 Liberty AWD that I use as my daily driver belonged to a little old lady who bought it new, and when her family moved her into a nursing home, she gave it to one of her carers who then advertised it on FB. It’s only needed a windscreen, exhaust, brakes and tyres since I’ve owned it. Great little car, as bland as a Toyota Camry to look at, but handles better than a lot of modern cars. The oil leak is coming from the camshaft end seals, but there’s a bit of work involved in changing them, so I’ll keep putting oil in it, (and a jug of Moreys oil thickener) and will change the oil and filter once the weather warms up again.