2025 GMC Yukon Fluid Type Specs
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Reference
| Fluid | Type/Spec | Capacity |
|---|---|---|
| Engine Oil | SAE 0W-20, DexosD (Diesel) / Dexos1 Gen3 (Gasoline) | Varies by engine (verify in owner's manual) |
| Engine Coolant | Dex-Cool (OAT, Orange/Red) | Varies by engine (verify in owner's manual) |
| Transmission Fluid | Dexron HP (10-speed automatic) | Varies by transmission (verify in owner's manual) |
| Transfer Case | Dexron ULV Automatic Transmission Fluid | Varies by transfer case (verify in owner's manual) |
| Front Differential | SAE 75W-90, API GL-5 (GM Part No. 88862624 or equivalent) | Varies by axle (verify in owner's manual) |
| Rear Differential | SAE 75W-90, API GL-5 (with or without Friction Modifier) | Varies by axle (verify in owner's manual) |
| Brake Fluid | DOT 3 (GM Part No. 88862806 or equivalent) | Varies (verify in owner's manual) |
| Power Steering | Electro-hydraulic system, consult owner's manual | N/A (electric power steering) |
| Washer Fluid | GM Optikleen Washer Solvent or equivalent | Varies (verify in owner's manual) |
| DEF (Diesel) | ISO 22241 / API DEF certified | 5-7.5 Gallons (verify in owner's manual) |
Engine Oil
For the 2025 GMC Yukon, engine oil specifications will vary based on the engine installed.
Gasoline Engines: The 2025 GMC Yukon equipped with gasoline engines (e.g., 5.3L V8 L84, 6.2L V8 L87) typically requires SAE 0W-20 full synthetic engine oil meeting the Dexos1 Gen3 specification. This specification ensures optimal performance, fuel efficiency, and protection for modern GM gasoline engines. Always look for the official Dexos1 Gen3 logo on the oil container.
Diesel Engines: For the 3.0L Duramax Turbo-Diesel engine (LM2 or LZ0), a different specification is required: DexosD engine oil, typically SAE 0W-20. DexosD is specifically formulated for GM's diesel engines to meet their unique lubrication and emissions requirements.
Intervals and Pitfalls: Engine oil and filter should be changed according to the Oil Life Monitoring (OLM) system, typically reset after each oil change. This system dynamically calculates oil change intervals based on driving conditions. It is crucial to use the exact specified oil type and viscosity. Using non-Dexos certified oil, or an incorrect viscosity, can lead to increased engine wear, reduced fuel economy, and potential issues with emissions systems. Never mix different types of oil or use conventional oil if synthetic is specified.
Engine Coolant
The 2025 GMC Yukon uses an Organic Acid Technology (OAT) coolant, specifically GM Dex-Cool. This coolant is typically orange or red in color and is designed for extended service intervals. Always use Dex-Cool or an equivalent OAT coolant that meets GM specifications. The use of traditional silicated coolants or mixing with other coolant types (e.g., HOAT, IAT) can lead to serious cooling system issues, including gel formation, corrosion, and radiator blockage, which can result in engine overheating and damage. Consult your owner's manual for the specific coolant capacity, but generally, always replenish with the correct type only. The coolant system is a closed system, and a significant drop in fluid level could indicate a leak.
Transmission Fluid
The 2025 GMC Yukon utilizes a 10-speed automatic transmission. This transmission requires Dexron HP (High Performance) automatic transmission fluid. It is crucial to use only Dexron HP fluid to ensure proper shift quality, transmission longevity, and to maintain the warranty. Never use
More specs for the 2025 GMC Yukon
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2025 GMC Yukon Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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