2021 Mazda Mazda3 Sport
Vehicle Specs & Maintenance Data
The 2021 Mazda Mazda3 Sport maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Mazda Mazda3 Sport.
For oil changes, the 2021 Mazda Mazda3 Sport takes 0W-20 Full Synthetic motor oil with a capacity of 4.8 quarts. Brake fluid type is DOT 3, the recommended coolant is FL22 Long Life Coolant (Green), and transmission fluid is Mazda ATF FZ. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.
When mounting wheels on the Mazda Mazda3 Sport, torque the lug nuts to 80-108 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.
There is 1 NHTSA safety recall on file for the 2021 Mazda Mazda3 Sport. Check the Recalls tab below for full details.
Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.
The 2021 Mazda Mazda3 Sport uses 0W-20 Full Synthetic motor oil (4.8 qt capacity), requires lug nuts torqued to 80-108 ft-lbs, takes DOT 3 brake fluid.
Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2021 Mazda Mazda3 Sport.
No known problems reported for this vehicle yet.
1 NHTSA safety recall for the 2021 Mazda Mazda3 Sport. Check your VIN at NHTSA.gov
TIRES:VALVE
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.
Mazda will notify owners, and dealers will replace all four tire air valves with new parts, free of charge. The recall began April 6, 2021. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 4721B.