Lexus GS, S140 (USA / CAN)

Automatic transmission fluid capacity & service interval

Lexus GS, S140 (USA / CAN) requires automatic transmission fluid with a capacity of 1,9 liters. Service intervals include checking and changing the fluid every 15000 miles or 24 months. The data covers 7 configurations.

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

TypeSpecifications
GS 300 (USA) (1996-1997)
  • Use: Normal
  • Capacity 1,9 liter (Service fill)
  • Code: A350E 5/1
GS 300 (USA) (1995-1995)
  • Use: Normal
  • Capacity 1,9 liter (Service fill)
  • Check 15000 miles/ 24 months
  • Code: A341E 4/1
GS 300 (USA) (1995-1995)
  • Use: Severe
  • Capacity 1,9 liter (Service fill)
  • Change 15000 miles/ 24 months
  • Code: A341E 4/1
GS 300 (USA) (1994-1994)
  • Use: Normal
  • Capacity 1,9 liter (Service fill)
  • Check 15000 miles/ 24 months
  • Code: A341E 4/1
GS 300 (USA) (1994-1994)
  • Use: Severe
  • Capacity 1,9 liter (Service fill)
  • Change 15000 miles/ 24 months
  • Code: A341E 4/1
GS 300 (USA) (1993-1993)
  • Use: Normal
  • Capacity 1,9 liter (Service fill)
  • Check 15000 miles/ 24 months
  • Code: A341E 4/1
GS 300 (USA) (1993-1993)
  • Use: Severe
  • Capacity 1,9 liter (Service fill)
  • Change 15000 miles/ 24 months
  • Code: A341E 4/1

Additional Notes

  • The Lexus GS 300 (USA) automatic transmission service fill capacity holds at 1.9 liters across all model years from 1993-1997, meaning only a partial fluid exchange is performed during routine maintenance rather than a full drain of the total system volume.
  • For the 1993-1995 GS 300 under normal use conditions, the specification calls for a fluid check at 15,000 miles or 24 months, whichever comes first, rather than an outright fluid change at that interval.
  • Under severe use conditions for 1993-1995, the same 15,000-mile or 24-month interval instead triggers a full fluid change, reflecting the greater thermal and mechanical stress placed on automatic transmission fluid in demanding driving situations.
  • The 1.9-liter service fill figure is notably smaller than a typical automatic transmission total capacity, which commonly ranges from 7 to 12 liters, indicating that a pan-drop service on the GS 300 replaces only a fraction of the fluid retained in the torque converter and passages.
  • The 1996-1997 GS 300 rows carry no interval specification alongside the 1.9-liter service fill capacity, whereas the 1993-1995 entries each pair the same capacity figure with a defined 15,000-mile or 24-month schedule.
  • The normal and severe use conditions for 1993-1995 share an identical capacity of 1.9 liters, meaning the volume of fluid involved in a service fill does not change between use conditions, only the nature of the service action does.

Other Systems