Driveline/Axle
Rear Differential Oil
• The rear differential is filled with 1.0 litre transmission oil. The transmission oil must
comply with SAE 80W-90 (API service GL-5) specification.
• The rear differential is filled with oil for lifetime and there is generally no need for
replacement or a level check during scheduled maintenance. Nevertheless, if the vehicle
is operated under severe conditions (see Scheduled Maintenance - Remarks), the oil
should be changed every 45,000 km (28,100 miles).
• If the rear differential has been submerged in water, the oil must be changed.
M6-MPS_03024
1 Filler plug 2 Drain plug
Service Training Mazda6 MPS Supplement 03-15