There's a 70 Toyota around here that I think is a Corolla.
I don't know the mileage but he bought it new and it's still his DD. We have talked about cars a few times. I have an 84 Civic wagon and I'm the original owner and it's also my DD.
He said he's always used Castrol 20w-50. At first he did 2K oil changes but in the past 30 years or so he opted for extended intervals and now goes 3K between changes. The speedo and odometer have been non operative since the 90's. He said he only fixes things that make it go an stop and keep the inside rain free and warm and of course the lights. His car is always garaged at home and at work and the climate here is perfect for people and cars.
Problems? None really. I helped him do a valve job somewhere around the 80's and he's had a local shop do other work but nothing serious. His next maintenance coming up is going to be an engine overhaul, radiator, hoses, generator, starter, u-joints, clutch and bearings and syncros for the tranny and a re-do of the diff. This will be the first serious work and he's going to have it all done at one time, oh and upholstery and paint. He says it has nothing to do with economic sense, just that he likes the car and wants to keep it. He drives it almost every day.
The only changes have been an ignition conversion to solid state, a coolant recovery and return system along with a crankcase catch can.
He said he'd buy a new car but this one is still working well. He paid about $1,800 cash and a new car would cost a lot more.