How much rear differential fluid does a 2007 Toyota FJ Cruiser hold?
Approximately 2.4 quarts (about 2.3 liters) of gear oil. Fill to the bottom of the rear differential fill plug using a 75W-90 GL-5 gear oil. Exact capacity can vary slightly by axle, drain completeness, and manufacturing tolerances.
Capacity and oil specification
Understanding the capacity and recommended oil for the 2007 FJ Cruiser's rear differential.
- Oil type: 75W-90 GL-5 gear oil (synthetic recommended; compatible with Toyota rear differentials).
- Fill level: Fill through the fill plug until fluid begins to seep out, then reinstall the fill plug with a proper torque. Do not overfill.
The rear differential typically holds about 2.4 quarts (2.3 liters) of gear oil when fully drained and refilled.
Note: Actual capacity can vary slightly by production date, axle configuration, and whether the differential is equipped with special limited-slip hardware. Always refer to the vehicle’s service manual for the exact specification for your axle.
How to check and change the rear differential fluid
Here is a practical step-by-step guide to checking and changing the rear differential oil on a 2007 FJ Cruiser.
- Park on a flat surface, engage parking brake, and safely raise and support the rear of the vehicle.
- Place a drain pan beneath the differential. Remove the fill plug first to ensure you can refill later, then remove the drain plug to let old fluid drain completely.
- Allow all old fluid to drain, then clean and inspect the drain plug and seal. Replace the drain plug and washer as needed.
- With the fill plug removed, add fresh gear oil through the fill hole until it begins to seep out of the hole. This indicates the proper fill level.
- Reinstall and torque the fill plug to the manufacturer’s specification. Lower the vehicle and wipe away any spilled oil.
Always verify after a short drive that the level is still at the fill hole and top up if necessary. If you’re unsure about torque specs or drainage procedures, consult the owner’s manual or a qualified technician.
Summary
For the 2007 Toyota FJ Cruiser, expect roughly 2.4 quarts of gear oil in the rear differential, filled to the bottom of the fill plug with 75W-90 GL-5 gear oil. Capacity can vary slightly, so use the service manual as the ultimate reference. Regular maintenance involves draining, cleaning, and refilling to the correct level to ensure optimal differential performance and longevity.
