Maintaining the correct lubricants in your 2023 GMC Yukon with the 6.2L L87 engine is critical for ensuring long-term reliability, optimal fuel economy, and maximum horsepower. This robust V8 engine is designed to handle heavy loads and towing, but it demands high-quality fluids to withstand the stress of modern driving conditions. Using the specified viscosities and genuine AMSOIL products ensures that every moving part, from the turbocharger to the transmission gears, receives the protection it needs against wear, heat, and sludge accumulation.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – This is a primary recommendation for normal driving conditions, offering superior protection against horsepower loss and wear while meeting GM dexos1 Gen 2 specifications. It allows for extended service intervals up to 25,000 miles or one year.
- AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil – Recommended for vehicles subject to severe service or specific manufacturer recalls, this oil provides exceptional thermal stability and engine protection in extreme temperatures, ensuring the engine runs smoothly whether towing or commuting.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – An excellent choice for drivers seeking a balance of protection and economy, this oil features enhanced cleaning power and guarantees 20,000 miles of service life while protecting against low-speed pre-ignition (LSPI).
- AMSOIL Oil Filter – Paired with any of the oils above, this filter provides 99% filtering efficiency at 20 microns, capturing contaminants more effectively than many competitors to reduce engine wear and extend the life of your synthetic motor oil.
- WIX XP Oil Filter – A premium aftermarket alternative, this filter offers improvements over original equipment manufacturer branded filters, ensuring reliable performance alongside any AMSOIL motor oil.
- WIX Oil Filter – An excellent OEM-level choice for conventional service intervals, this filter provides robust filtration to keep the engine clean and running smoothly.
- AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid – Specifically formulated for the 10-speed automatic transmission found in the Yukon, this fluid withstands the rigors of heavy towing and elevated temperatures, ensuring smooth shifting and reliable performance in sub-zero conditions.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – Essential for the front and rear differentials, this lubricant controls thermal runaway and protects against rust and corrosion, featuring friction modifiers that are ideal for limited-slip applications in the Yukon’s transfer case and axles.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A phosphate-free, ethylene glycol-based coolant that offers protection up to 150,000 miles or five years, ensuring your engine’s cooling system remains clean and free from corrosion in all seasons.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Provides excellent ABS and traction-control responsiveness with a stable viscosity over a wide temperature range, giving you superior stopping power and safety in critical situations.
The 6.2L EcoTec3 V8 engine in your 2023 GMC Yukon is a powerhouse, but it requires precise lubrication to function at its peak. The engine oil capacity is 8.0 quarts when including a filter change. It is vital to check the oil level after refilling and torque the drain plug to the specified 18 ft-lbs. AMSOIL products are engineered to exceed original equipment manufacturer requirements, ensuring that the 75% more engine protection against horsepower loss and wear is realized in real-world driving. Whether you are driving in severe conditions with AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil for engines over 75,000 miles or need an OEM mileage replacement with AMSOIL OE 0W-20 100% Synthetic Motor Oil, there is a specific formulation designed to match your vehicle’s needs.
For the transmission, the 10-speed 10L80/MHS automatic system has specific fill requirements depending on whether the cooler is being serviced. A total fill with the cooler requires 12 quarts, while a total fill of the transmission only requires 11.5 quarts. Using a dedicated synthetic transmission fluid like the AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid ensures that the complex valve body and clutch packs remain protected from sludge and heat breakdown. The differential and transfer case also demand attention, with capacities varying slightly based on the specific axle ratio (GLSH5 or GLSH6). The 75W-85 AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube covers these units effectively, providing the necessary friction modifiers for limited-slip differentials and protecting seals from drying out.
Regular maintenance extends beyond just the engine. The cooling system holds approximately 15.1 quarts of AMSOIL Passenger Car & Light Truck Antifreeze & Coolant or AMSOIL Propylene Glycol Antifreeze and Engine Coolant, making the selection of a high-quality antifreeze crucial for preventing corrosion and maintaining optimal operating temperatures. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid should also be replaced periodically to maintain a high boiling point and ensure consistent pedal feel. By utilizing AMSOIL additives like the AMSOIL P.i. Performance Improver Gasoline Additive, owners can further enhance fuel economy and restore horsepower by cleaning injectors and reducing carbon buildup.
About the Vehicle
The 2023 GMC Yukon represents the continuation of a lineage that has long been a staple in the full-size SUV market. Known for its robust build quality and commanding road presence, the Yukon serves as a versatile vehicle for both family transportation and heavy-duty work. Equipped with the optional 6.2L V8 engine, the Yukon delivers substantial towing capability and acceleration, making it a popular choice for those who require a blend of luxury and utility. The interior typically features high-quality materials, advanced technology integration, and a spacious cabin designed to accommodate passengers and cargo comfortably.
Manufactured with a focus on American craftsmanship, the Yukon sits at the top of GMC’s truck-based SUV hierarchy. It shares its platform with the Chevrolet Tahoe and Suburban, but GMC often emphasizes a more refined, upscale styling and premium features in the cabin. The vehicle is well-regarded for its ride quality, which manages to absorb road imperfections effectively despite its large size. Owners appreciate its ability to navigate various terrains with confidence, thanks to the advanced four-wheel-drive systems available. Whether used for off-road adventures, long road trips, or daily commuting in urban environments, the Yukon stands out as a reliable and capable choice in the full-size segment.
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