Lexus RX, L1 (EU)
Differential fluid capacity & service interval
Lexus RX, L1 (EU) differential fluid capacity ranges from 0,5 to 1,8 liters. Service intervals include changing at 30000 km/48 months or 90000 km/72 months, and checking at 45000 km/36 months. The data covers 6 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Lexus RX 450h 4WD rear differential is designated as an electric drive unit, which distinguishes its fluid service requirements from the conventional rear differential found in the RX 350 AWD.
- The RX 350 AWD rear differential holds 0.5 liter, a relatively small capacity consistent with a compact conventional rear differential assembly.
- The RX 450h 4WD rear electric drive differential holds 1.8 liters, a notably larger capacity than the RX 350 AWD unit, reflecting the additional volume required to lubricate an electrically driven differential mechanism.
- For the RX 350 AWD, the rear differential fluid change interval under normal use conditions is set at 30,000 km or 48 months across both the 2009-2012 and 2012-2015 model ranges.
- The RX 450h 4WD rear electric drive differential under normal use conditions carries only a check interval of 45,000 km or 36 months, with no fluid change interval specified for that condition.
- Under severe use conditions, the RX 450h 4WD rear electric drive differential retains the same 45,000 km or 36-month check interval but adds a fluid change interval of 90,000 km or 72 months.
- The severe use change interval of 90,000 km or 72 months for the RX 450h 4WD electric drive differential represents a considerably longer service cycle than the 30,000 km or 48-month change interval applied to the RX 350 AWD rear differential under normal use.
- Fluid capacity figures remain identical between the 2009-2012 and 2012-2015 generations for both the RX 350 AWD and the RX 450h 4WD, indicating no change in differential assembly volume across those model year transitions.