Chevrolet Express, GMT600 (USA / CAN)

Automatic transmission fluid capacity & service interval

Chevrolet Express, GMT600 (USA / CAN) automatic transmission fluid capacity ranges from 4,7 to 12,8 liters. Service intervals include checks at 6 months or 8000 km, and fluid changes at 24000 km, 48000 km, 50000 miles, or 100000 miles. The data covers 24 configurations.

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

TypeSpecifications
Express 8.1 V8 (2001-2002)
  • Use: Normal
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L60-E 4/1
Express 8.1 V8 (2001-2002)
  • Use: Severe
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L60-E 4/1
Express 8.1 V8 (2001-2002)
  • Use: Normal
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L80-E 4/1
Express 8.1 V8 (2001-2002)
  • Use: Severe
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L80-E 4/1
Express 4.3 V6 (1997-2002)
  • Use: Normal
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L60-E 4/1
Express 4.3 V6 (1997-2002)
  • Use: Severe
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L60-E 4/1
Express 4.3 V6 (1997-2002)
  • Use: Normal
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L80-E 4/1
Express 4.3 V6 (1997-2002)
  • Use: Severe
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L80-E 4/1
Express 5.0 V8 (1997-2002)
  • Use: Normal
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L60-E 4/1
Express 5.0 V8 (1997-2002)
  • Use: Severe
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L60-E 4/1
Express 5.0 V8 (1997-2002)
  • Use: Normal
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L80-E 4/1
Express 5.0 V8 (1997-2002)
  • Use: Severe
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L80-E 4/1
Express 5.7 V8 (1997-2002)
  • Use: Normal
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L60-E 4/1
Express 5.7 V8 (1997-2002)
  • Use: Severe
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L60-E 4/1
Express 5.7 V8 (1997-2002)
  • Use: Normal
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L80-E 4/1
Express 5.7 V8 (1997-2002)
  • Use: Severe
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L80-E 4/1
Express 6.5 V8 Diesel (1997-2002)
  • Use: Normal
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 8000 km
  • Change 48000 km
  • Code: 4L60-E 4/1
Express 6.5 V8 Diesel (1997-2002)
  • Use: <3900 kg GVWR
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Change 24000 km
  • Code: 4L60-E 4/1
Express 6.5 V8 Diesel (1997-2002)
  • Use: Normal
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 8000 km
  • Change 48000 km
  • Code: 4L80-E 4/1
Express 6.5 V8 Diesel (1997-2002)
  • Use: <3900 kg GVWR
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Change 24000 km
  • Code: 4L80-E 4/1
Express 7.4 V8 (1997-2000)
  • Use: Normal
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L60-E 4/1
Express 7.4 V8 (1997-2000)
  • Use: Severe
  • Capacity 10,6 liter (Overhaul capacity)
  • Capacity 4,7 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L60-E 4/1
Express 7.4 V8 (1997-2000)
  • Use: Normal
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 100000 miles
  • Code: 4L80-E 4/1
Express 7.4 V8 (1997-2000)
  • Use: Severe
  • Capacity 12,8 liter (Overhaul capacity)
  • Capacity 7,3 liter (Service fill)
  • Check 6 months
  • Change 50000 miles
  • Code: 4L80-E 4/1

Additional Notes

  • Two distinct transmission configurations appear across all engine variants of the Chevrolet Express GMT600 for 1997-2002. One carries an overhaul capacity of 10.6 liters paired with a service fill of 4.7 liters, while the other holds 12.8 liters at overhaul and 7.3 liters at service fill. The gap between overhaul and service fill figures in both cases reflects fluid retained in the torque converter and transmission cooler lines during a standard drain-and-fill service.
  • The service fill values of 4.7 liters and 7.3 liters represent only the fluid recovered during a routine pan-drop service, where the torque converter is not emptied. Overhaul capacities of 10.6 liters and 12.8 liters apply when the transmission is fully disassembled and all fluid passages are drained completely.
  • For gasoline-powered variants, including the 4.3 V6, 5.0 V8, 5.7 V8, 7.4 V8, and 8.1 V8, the fluid check interval is set at every 6 months regardless of which transmission configuration is fitted.
  • Under normal use conditions, gasoline engine variants across the 1997-2002 range carry a fluid change interval of 100,000 miles. Under severe use conditions, the same variants require a change at 50,000 miles, cutting the interval in half.
  • The 6.5 V8 Diesel specifications use kilometer-based intervals rather than mile-based ones. Under normal conditions, the fluid check interval is every 8,000 km and the change interval is 48,000 km for both transmission configurations.
  • A weight-based use condition applies specifically to the 6.5 V8 Diesel: vehicles with a gross vehicle weight rating below 3,900 kg carry a fluid change interval of 24,000 km, exactly half the 48,000 km normal-condition interval. No fluid check interval is listed under the sub-3,900 kg GVWR condition.
  • The 7.4 V8 engine variant covers the 1997-2000 model years, a shorter span than the other gasoline engines which run through 1997-2002. The 8.1 V8, by contrast, appears only for 2001-2002, representing a later introduction within the same generation.
  • Despite the difference in displacement between the 4.3 V6 and the 8.1 V8, both share identical transmission fluid capacities and identical change intervals across normal and severe conditions, indicating the intervals are tied to the transmission unit rather than engine output.

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