2015 GMC Acadia Fluid Type Specs
Complete Factory-Spec Fluid Guide for Your SUV
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 5W-30, dexos1 Gen2 | 5.5 quarts (5.2 L) |
| Engine Coolant | DEX-COOL (OAT), Orange | 11.0 quarts (10.4 L) |
| Transmission Fluid | DEXRON VI | 9.5 quarts (8.9 L) |
| Transfer Case | DEXRON VI | 1.06 quarts (1.0 L) |
| Front Differential | SAE 75W-90, API GL-5 | 1.25 quarts (1.18 L) |
| Rear Differential | SAE 75W-90, API GL-5 | 1.06 quarts (1.0 L) |
| Brake Fluid | DOT 3 or DOT 4 | As needed |
| Power Steering | DEXRON VI | As needed |
| Washer Fluid | Pre-mixed Washer Fluid | As needed |
Engine Oil
For your 2015 GMC Acadia, the factory-specified engine oil is SAE 5W-30. It is crucial to use oil that meets the GM dexos1 Gen2 specification. Using an oil that does not meet this specification can lead to reduced engine performance and potential damage. The oil capacity for the 3.6L V6 engine is 5.5 quarts (5.2 liters) with a filter change.
The recommended oil change interval is every 7,500 miles or 12 months, whichever comes first, under normal driving conditions. However, your vehicle is equipped with an Oil Life System (OLS) which will monitor driving conditions and determine the optimal oil change interval. It is always best to follow the OLS indicator, but never exceed 12 months without an oil change. When adding oil, ensure you use the correct type and do not overfill, as this can also cause engine problems.
Engine Coolant
The 2015 GMC Acadia uses DEX-COOL engine coolant. This is an Organic Acid Technology (OAT) coolant, easily identifiable by its orange/red color. It is critical to only use DEX-COOL or an equivalent OAT coolant that meets GM 6277M specification. Mixing DEX-COOL with other types of coolant (like those containing silicates or phosphates, often referred to as HOAT or IAT coolants) can lead to chemical reactions that cause sludge formation, corrosion, and severe damage to your cooling system components.
The cooling system capacity is approximately 11.0 quarts (10.4 liters). The manufacturer recommends changing the engine coolant every 5 years or 150,000 miles, whichever comes first. When topping off, always use a 50/50 mixture of DEX-COOL and distilled water. Never use tap water as the minerals can lead to deposits and corrosion within the system. Always allow the engine to cool completely before opening the coolant reservoir cap.
Transmission Fluid
The automatic transmission in your 2015 GMC Acadia requires DEXRON VI automatic transmission fluid. This is a high-performance, long-life fluid specifically designed for GM transmissions. The total capacity for a drained and refilled transmission is approximately 9.5 quarts (8.9 liters), though service fills will vary depending on the amount drained during a pan drop and filter change.
GM generally considers the transmission fluid
More specs for the 2015 GMC Acadia
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
2015 GMC Acadia 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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