Engine oil
8.0 US qt (7.6 L) with filter (GM TechLink MY2025 chart)
Notes
Yukon Denali L87 4WD 10AT MY2025 US; United States MY2025 only. Exact GMC model/engine row from R56, independently matched to its own MY2025 owner manual and GMC release; trim/drive confirmed in GM Fleet Guide. Excludes other model years, models and powertrains. Internal descriptive label, not OEM chassis code. With-filter oil quantities; check level after filling.
Coolant
14.3 L (15.1 US qt) approximate entire engine cooling system capacity
Notes
Yukon Denali L87 4WD 10AT MY2025 US; exact United States MY2025 GMC Yukon Denali, L87, 4WD, 10AT. Only the cited model/engine/drive row applies; no cross-model or cross-year capacity inference. Yukon 120.9-inch short wheelbase, not Yukon XL 134.1-inch long wheelbase, per original GMC release dimensions.
Transmission fluid
DEXRON ULV Automatic Transmission Fluid
Notes
Yukon Denali L87 4WD 10AT MY2025 US; exact United States MY2025 GMC Yukon Denali, L87, 4WD, 10AT. Only the cited model/engine/drive row applies; no cross-model or cross-year capacity inference. Yukon 120.9-inch short wheelbase, not Yukon XL 134.1-inch long wheelbase, per original GMC release dimensions.
Fuel tank
90.8 L (24.0 US gal) approximate fuel tank capacity
Notes
Yukon Denali L87 4WD 10AT MY2025 US; exact United States MY2025 GMC Yukon Denali, L87, 4WD, 10AT. Only the cited model/engine/drive row applies; no cross-model or cross-year capacity inference. Yukon 120.9-inch short wheelbase, not Yukon XL 134.1-inch long wheelbase, per original GMC release dimensions.