How To Drain & Fill (Change) The Front Differential/Transfer Case (PTU) Oil On A 2016-2023 Mazda CX9
This video shows how to drain and fill (change) the front differential & transfer case (PTU) fluid on a 2023 Mazda CX-9. The process will be the same on any 2016-2023 Mazda CX-9. On this vehicle the front differential is integrated into the transmission to serve as a transfer case as well. So there is only one drain and fill process for both the front differential and transfer case on this vehicle. Disclaimer: This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases. This means I may receive a commission if you click on a link and make a purchase, at no extra cost to you. Dorman Crush Washers https://amzn.to/3NZh7E2 Mazda Hypoid Gear Oil https://amzn.to/47rurrC Timestamps 0:00 - Intro 0:45 - Removing The Splash Shield 5:03 - Locating The Front Differential/PTU Drain & Fill Plugs 6:07 - Draining Old Differential/PTU Fluid 7:13 - Changing Drain & Fill Plug Crush Washers/Gaskets 9:51 - Torquing Drain Plug To Spec 10:37 - Proper Fill Capacity & Oil Change Intervals 12:06 - Using The Correct Differential/PTU Oil 12:40 - Filling The Differential/PTU With New Oil 13:59 - Torquing Fill Plug To Spec 14:22 - Check For Leaks 14:34 - Reinstall Splash Shield
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