1975 Ford Capri : 493.000 Km ( 306k miles ) on original drivetrain except engine, replaced in 1991, current engine has about 90-100k miles, 2nd car, in regular use but not daily driver.
Rest of the drivetrain is original and has never been overhauled, only fluid changes.
Always been run on 20W-50 Dino, 10W-40 Synthetic blends, Mobil 1 a few times early in the car's life.
Oil pressure good and burns no oil since changing the valve stem seals in Aug '16.
1999 Peuegot 106 1.1i : 178.000 Km ( 108k miles ), owned since April 2014, cheap daily driver, unknown history, i have run it on 10w40 syn-blends and have been topping up with 20w50 dino, engine burns a bit of oil.