Oldsmobile Delta 88, 7th Gen (USA / CAN)

Automatic transmission fluid capacity & service interval

Oldsmobile Delta 88, 7th Gen (USA / CAN) automatic transmission fluid capacity ranges from 1,9 to 3,5 liters. Service intervals include checking every 10000 km or 4 months and changing every 40000 km. The data covers 6 configurations.

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

TypeSpecifications
Delta 88, 350 (1971-1976)
  • Use: Normal
  • Capacity 1,9 liter
  • Check 10000 km/ 4 months
  • Change 40000 km
  • Code: Powerglide
Delta 88, 350 (1971-1976)
  • Use: Normal
  • Capacity 2,4 liter
  • Check 10000 km/ 4 months
  • Change 40000 km
  • Code: Turbo-Hydramatic 350 3/1
Delta 88, 350 (1971-1976)
  • Use: Normal
  • Capacity 3,5 liter
  • Check 10000 km/ 4 months
  • Change 40000 km
  • Code: Turbo-Hydramatic 400 3/1
Delta 88, 455 (1971-1976)
  • Use: Normal
  • Capacity 1,9 liter
  • Check 10000 km/ 4 months
  • Change 40000 km
  • Code: Powerglide
Delta 88, 455 (1971-1976)
  • Use: Normal
  • Capacity 2,4 liter
  • Check 10000 km/ 4 months
  • Change 40000 km
  • Code: Turbo-Hydramatic 350 3/1
Delta 88, 455 (1971-1976)
  • Use: Normal
  • Capacity 3,5 liter
  • Check 10000 km/ 4 months
  • Change 40000 km
  • Code: Turbo-Hydramatic 400 3/1

Additional Notes

  • The Oldsmobile Delta 88 7th Gen automatic transmission specifications cover two engine configurations across the 1971-1976 model years: the 350 and the 455.
  • Both the 350 and 455 engine configurations share identical service intervals under normal use conditions, with a fluid level check scheduled every 10,000 km or 4 months, whichever comes first, and a full fluid change at 40,000 km.
  • Three distinct capacity figures appear across both engine configurations: 1.9 liters, 2.4 liters, and 3.5 liters. In automatic transmission service, differing capacity values of this kind typically reflect different fill procedures, such as a partial drain-and-fill versus a more complete overhaul or converter-out service.
  • The 1.9-liter figure represents the smallest of the three capacity values and is generally associated with a partial service fill, where only the fluid displaced during a pan drop is replaced without removing the torque converter.
  • The 3.5-liter figure is the largest capacity listed and would correspond to a more complete fluid exchange, capturing a greater portion of the total fluid volume held within the transmission assembly.
  • The 2.4-liter capacity sits between the partial and full-service figures, which in period automatic transmissions can reflect an intermediate procedure or a specific transmission variant with a different sump or converter volume.
  • The fact that all three capacity values apply equally to both the 350 and 455 engine configurations suggests the transmission unit itself, rather than the engine displacement, determines which fill volume is applicable in a given service scenario.

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