Out on the Mazda at 152k: 6 quarts M1 HM 5W-30 w/ Motorcraft FL920S
In on the Mazda: 6 quarts Valvoline Maxlife Full Synthetic High Mileage 5W-30 w/ Motorcraft FL920S
In on the Mazda: 6 quarts Valvoline Maxlife Full Synthetic High Mileage 5W-30 w/ Motorcraft FL920S