04 Hyundai Sonata GLS- 185000 miles
Original 2.7 V6 (no major work) M1 10w30 with HM at around 120k. OCI of 5k or 2x year intervals, Hyundai filter every other change
Original 4sp auto transmission Idemitsu ATF Type HK. Drain and fill every other oil change
97 Volvo 850 GLT Wagon- 357000 miles...