My sister drives a 2000 Infiniti I30 my parents gave her a couple years ago and it has close to 165k now, she wants it to last since she's going to law school and doesn't want to have to buy her own car. Just looking for a decent high mileage oil recommended. I was thinking maxlife, Rotella T5, or if M1 makes a hm oil maybe that. Any help is appreciated, thanks