Lexus RX, AL10 (USA / CAN)

Differential fluid capacity & service interval

Lexus RX, AL10 (USA / CAN) differential fluid capacity ranges from 0,5 to 1,8 liters. Service intervals include checks at 16000 km, 15000 miles/ 18 months, and 30000 miles/ 36 months, with fluid changes at 15000 miles/ 18 months and 60000 miles/ 72 months. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • RX 350 AWD (CAN) (2009-2015)
  • Rear
  • Use: Normal
  • Capacity 0,5 liter
  • Check 16000 km
  • RX 350 AWD (USA) (2009-2015)
  • Rear
  • Use: Normal
  • Capacity 0,5 liter
  • Check 15000 miles/ 18 months
  • RX 350 AWD (USA) (2009-2015)
  • Rear
  • Use: Severe
  • Capacity 0,5 liter
  • Change 15000 miles/ 18 months
  • RX 450h AWD (CAN) (2009-2015)
  • Rear
  • Use: Normal
  • Capacity 1,8 liter
  • Check 16000 km
  • RX 450h AWD (USA) (2009-2015)
  • Rear
  • Use: Normal
  • Capacity 1,8 liter
  • Check 30000 miles/ 36 months
  • RX 450h AWD (USA) (2009-2015)
  • Rear
  • Use: Severe
  • Capacity 1,8 liter
  • Check 30000 miles/ 36 months
  • Change 60000 miles/ 72 months

Additional Notes

  • The Lexus RX 450h AWD carries a rear differential fluid capacity of 1.8 liters, which is notably larger than the 0.5 liter capacity specified for the RX 350 AWD across the same 2009-2015 model years.
  • The 0.5 liter rear differential capacity on the RX 350 AWD reflects a compact, electronically controlled coupling unit rather than a conventional open differential assembly, which typically holds a greater volume of fluid.
  • For the RX 350 AWD in the USA market under normal use conditions, the rear differential fluid interval is a check at 15,000 miles or 18 months, while severe use conditions call for a full fluid change at that same 15,000 mile or 18 month interval.
  • The RX 350 AWD in the Canadian market specifies a rear differential fluid check at 16,000 km under normal use, which aligns closely in distance with the 15,000 mile USA normal interval when accounting for the unit conversion difference.
  • The RX 450h AWD in the USA market under normal use conditions has a rear differential fluid check interval of 30,000 miles or 36 months, a considerably longer interval than the 15,000 mile or 18 month check specified for the RX 350 AWD under the same market and use conditions.
  • Under severe use conditions, the RX 450h AWD in the USA market retains the same 30,000 mile or 36 month check interval but adds a fluid change requirement at 60,000 miles or 72 months, introducing a two-stage maintenance structure not present in the RX 350 AWD severe use specification.
  • The RX 450h AWD in the Canadian market specifies a rear differential fluid check at 16,000 km under normal use, whereas the USA market equivalent under normal use extends to 30,000 miles or 36 months, representing a substantial difference in interval length between the two regional specifications for the same drivetrain.

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