Last Updated: 05/08/2023 @ 06:58 am

Community Member Credit: fxlr8

PROCEDURE WAS DONE ON MY 2008 M45. PROCEDURE SHOULD BE SIMILAR ON MOST INFINITI VEHICLES. MAKE SURE TO CHECK YOUR OWNERS MANUAL FOR PROPER FLUID SPECS AND CAPACITIES.

TOOLS:

• JACK STANDS
• JACK
• 10MM HEX SOCKET
• SOCKET WRENCH
• TORQUE WRENCH (FT/LBS)
• BREAKER BAR (IF NEEDED)

SUPPLIES:

• 2 (QUART) BOTTLES DIFFERENTIAL GEAR OIL (75W-90 SYNTHETIC IS WHAT I USED)
• FLUID PUMP
• DRAIN PAN
• RAGS

SAFETY:

• NEVER GET UNDER A CAR WITHOUT OUT QUALITY JACKSTANDS OR RAMPS IN PLACE. NEVER EVER GET UNDER A CAR ONLY RAISED AND SUPPORTED WITH A JACK.

PROCEDURE:

LIFT AND SUPPORT ALL 4 CORNERS OF YOUR VEHICLE WITH JACKSTANDS. YOU WANT TO KEEP THE THE CAR AS LEVEL AS POSSIBLE SO YOU WILL BE ABLE TO PUMP IN THE CORRECT AMOUNT OF FLUID INTO THE DIFFERENTIAL.

LOOSEN AND REMOVE THE TOP FILLER PLUG FIRST (YOU’LL WANT TO REMOVE THE FILLER PLUG FIRST SO YOU CAN BE SURE THAT YOU WILL BE ABLE TO FILL UP THE DIFFERENTIAL AFTER THE FLUID IS DRAINED).

LOOSEN THE DRAIN PLUG. ALIGN YOUR PAN UNDER THE DIFFERENTIAL AND REMOVE THE PLUG.

LET THE FLUID DRAIN COMPLETELY.

AFTER THE FLUID DRAINS, CLEAN THE DRAIN PLUG AND REINSTALL THE DRAIN PLUG. TIGHTEN THE DRAIN PLUG TO 25FT/LBS.

GRAB YOUR FLUID AND PUMP AND FILL YOUR DIFFERENTIAL UNTIL THE FLUID STARTS COMING OUT OF THE FILLER HOLE. YOU MIGHT HAVE SOME FLUID COMING OUT SLOWLY THE WHOLE TIME YOU ARE PUMPING, BUT IT WILL NOT BE FULL UNTIL IT IS COMING OUT PRETTY GOOD (AROUND 1.7 QUARTS).

AFTER THE FLUID IS LEVEL WITH AND COMING OUT OF THE FILLER HOLE PUT BACK THE FILLER PLUG AND TIGHTEN TO 25FT/LBS.

CLEAN UP ANY FLUID THAT YOU SPILLED, ESPECIALLY OFF THE EXHAUST PIPES.

DONE!

MY CAR HAD AROUND 39,000 ON IT, NOT SURE IF THE FLUID WAS EVER CHANGED BEFORE I DID IT.
OLD FLUID ON LEFT / NEW FLUID ON RIGHT.