Engine oil
7.0 US qt (6.6 L) with filter (GM TechLink MY2025 chart)
Notes
Tahoe Z71 LZ0 4WD 10AT MY2025 US; United States MY2025 only. Existing R53 Tahoe/Suburban engine row, now narrowed to Z71 4WD 10AT using the original GM 2025 Fleet Guide PDF p.81 and Chevrolet final August 2024 release. Internal descriptive configuration label, not an OEM chassis code. Oil quantity is with filter; check dipstick after filling. Other specifications are not inferred from the shared chart row.
Coolant
20.2 L (21.3 US qt) approximate engine cooling system capacity
Notes
Tahoe Z71 LZ0 4WD 10AT MY2025 US; United States MY2025 Chevrolet Tahoe, Z71 4WD, LZ0, 10-speed automatic. Internal descriptive label, not an OEM chassis code. SUV-specific values; no pickup capacities reused.
Transmission fluid
DEXRON ULV Automatic Transmission Fluid
Notes
Tahoe Z71 LZ0 4WD 10AT MY2025 US; United States MY2025 Chevrolet Tahoe, Z71 4WD, LZ0, 10-speed automatic. Internal descriptive label, not an OEM chassis code. SUV-specific values; no pickup capacities reused.
Fuel tank
24 US gal (approximately 91 L)
Notes
Tahoe Z71 LZ0 4WD 10AT MY2025 US; United States MY2025 Chevrolet Tahoe, Z71 4WD, LZ0, 10-speed automatic. Internal descriptive label, not an OEM chassis code. SUV-specific values; no pickup capacities reused.