Rural king (farmers fleet) motor oil.

I had a 85 jeep with a 2.8 liter and it leaked oil but nothing major when I drove it. It had over 200k miles on it when I sold it. I sold it to an older lady at work and it sprung a really bad rear main seal leak. She would put catch pan under it in the parking lot at work and then pour the oil back in when we got off ! Lol she told me that she drove it from here in va to ohio every weekend to see her grandkids. I wouldn't have trusted it that far but it never broke on her.
Recyclying. We were green before it was cool!