Marauder, 6 quarts. Freestyle, 6 quarts. Ford Tractor, 6 quarts. Hyundai Santa Fe, 5.5. Kia Optima, 4.8. Santa Fe is the most annoying. Second most annoying is the 6 quart stuff. $21 for a jug of 5 quarts and $7 for an extra quart? Makes total sense. Only car I can dump a jug into is the Optima. Currently converting the whole fleet to Valvoline Synthetic 5-30 for simplicity's sake. Then the only different animal will be the Torino with its Amsoil stuff but that doesn't bother me. It's special.