Chevrolet Corvette, C8 (USA / CAN)

Additional Notes

• The Chevrolet Corvette C8 5.5 V8 Z06 cooling system holds 23.5 liters, the largest single fixed capacity among all listed configurations. The 5.5-liter flat-plane crank V8 is a higher-revving engine with greater thermal output than the 6.2-liter variants, which corresponds to the larger coolant volume required to manage heat across the system.
• The 6.2 V8 configurations in both 365 kW and 369 kW outputs share an identical capacity range of 20.5–22.8 liters. A range rather than a fixed value typically reflects variation between trim levels, optional equipment packages, or cooling circuit configurations that affect total system volume at the time of service fill.
• The 20.5–22.8 liter range applies consistently across the 365 kW and 369 kW 6.2 V8 variants spanning 2020-2022 and the later production entries, indicating no change in cooling system capacity between those two power output variants despite their differing outputs.
• The Corvette 6.2 V8 E-Ray (488 kW) carries a 21.5-liter main cooling system capacity, which falls within the range established for the standard 6.2 V8 variants. The E-Ray designation refers to a hybrid configuration, and the 488 kW combined output is substantially higher than the non-hybrid 6.2 V8 figures.
• Separate from the main 21.5-liter cooling circuit, the E-Ray power electronics cooling system holds 1.4 liters. Power electronics cooling circuits in hybrid vehicles are typically isolated loops that manage heat from inverters, motor controllers, and related electrical components, keeping them thermally separate from the combustion engine circuit.
• Both the main cooling system and the power electronics circuit on the E-Ray share the same service interval of 150,000 miles or 60 months under normal use conditions, meaning both circuits are serviced on the same schedule despite their significant difference in capacity.
• All listed configurations carry a uniform coolant change interval of 150,000 miles or 60 months under normal use conditions. A 150,000-mile interval is characteristic of modern extended-life coolant formulations, which use organic acid technology (OAT) or similar chemistry to resist degradation over long service periods.
• The 60-month time limit on the coolant change interval runs independently of mileage accumulation. Coolant degrades chemically over time regardless of vehicle use, so the time-based threshold ensures the fluid is replaced even in low-mileage applications before corrosion inhibitors are depleted.