Cadillac CT5 (USA / CAN)

Additional Notes

• The transfer case fluid capacity across all Cadillac CT5 AWD configurations — the 2.0, 3.0, and CT5-V 3.0 — is uniformly 0.8 liter. A capacity this small is characteristic of a compact transfer case unit designed for a car-based AWD platform rather than a truck-based four-wheel-drive system.
• The 0.8-liter figure represents a service fill capacity, meaning the amount of fluid required when draining and refilling during a routine fluid change. Overhaul or complete disassembly procedures typically differ and may require additional fluid to account for passages and components not fully drained during a standard service.
• Under normal use conditions, the transfer case fluid change interval is 97,500 miles across all CT5 AWD variants and both model year groups covered in the specifications. This extended interval reflects the relatively low mechanical stress placed on transfer case fluid in a passenger car AWD application under typical driving conditions.
• Under severe use conditions, the change interval drops to 45,000 miles — less than half the normal-use interval. Severe use typically encompasses conditions such as frequent towing, repeated short trips, extreme temperature exposure, or sustained high-load driving, all of which accelerate fluid degradation.
• The 2.0 AWD, 3.0 AWD, and CT5-V 3.0 AWD configurations share identical transfer case fluid capacity and change intervals for both normal and severe use. Despite differences in engine displacement and performance tuning between the standard and V-series trims, the transfer case specifications remain consistent across all three variants.
• The specifications list separate entries for the 2019-2022 and 2022- model year groups across all three CT5 AWD configurations. In all cases, the capacity and interval values are identical between the two groups, indicating no change to transfer case service requirements at the 2022 model year boundary.