Maintaining the 2022 GMC Yukon with its powerful 6.2L V8 requires more than just a standard oil change; it demands a lubrication strategy tailored to the specific needs of the L87 engine code and the vehicle’s demanding operating conditions. Proper fluid selection is critical for preserving the integrity of the aluminum engine components, the high-performance automatic transmission, and the complex four-wheel-drive system found in many Yukon models. This guide outlines the exact AMSOIL Signature Series synthetic products designed to maximize protection and extend service intervals for this robust American SUV.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – The top-tier choice providing 75% more engine protection against horsepower loss and wear, offering guaranteed protection for up to 25,000 miles or one year.
- AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil – Specifically recommended for vehicles affected by GM safety recall SEOE2, this viscosity ensures proper lubrication for affected L87 engines.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – Features superior cleaning power to keep the engine running smoother for longer, with guaranteed protection up to 20,000 miles.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – An excellent alternative that outperforms conventional oils and OEM mileage standards, fighting sludge and deposits effectively.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Formulated specifically for engines with over 75,000 miles, featuring boosted detergents and reduced sludge to restore performance.
- AMSOIL Oil Filter – Provides 99% filtering efficiency at 20 microns and higher capacity for wear-causing contaminants to help reduce engine wear.
- WIX XP Oil Filter – A premium aftermarket option featuring improved media over original equipment manufacturer-branded filters for excellent filtration.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix formulation offering protection up to 150,000 miles or 5 years, compatible with all cooling system metals and hoses.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that greatly surpasses standards for metallic corrosion and erosion, ideal for heavy-duty applications requiring mixing with distilled water.
- AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid – Withstands the rigors of heavy towing and elevated temperatures while remaining fluid in sub-zero conditions.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – Essential for the transfer case and differentials, offering advanced protection against wear and controlling thermal runaway.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with stable viscosity across a wide temperature range.
- AMSOIL P.i.® Performance Improver Gasoline Additive – Restores up to 14% horsepower and cleans GDI fuel injectors, helping prevent carbon buildup and improving fuel economy.
The 2022 GMC Yukon is a full-size SUV that demands robust lubrication solutions due to its large displacement V8 engine and heavy-duty towing capabilities. The L87 6.2L engine generates significant power, but it also generates substantial heat. To handle the stress of high output and extended service intervals, synthetic lubricants are essential. The recommended engine oil capacity for a 6.2L model with filter is 8.0 quarts. It is crucial to check the oil level after refilling to ensure the correct volume is present, as overfilling or underfilling can impact engine performance and longevity. The drain plug should be torqued to 18 ft-lbs, and the seal must be replaced to prevent leaks. Owners should note that GM has issued a safety recall bulletin (SEOE2) affecting certain 2021–2024 6.2L gasoline engines regarding oil viscosity. For these specific vehicles, the use of AMSOIL Signature Series 0W-40 is the correct specification to ensure proper protection.
Transmission maintenance is equally vital for this platform. The Yukon typically utilizes a 10-speed automatic transmission (10L80 or 10L80/MHS). Depending on the configuration—specifically whether the system includes a cooler or not—the total fill capacity ranges from 11.5 to 12 quarts, with an initial fill of 8.1 quarts. Using a synthetic transmission fluid like the AMSOIL Signature Series ULV Automatic Transmission Fluid is recommended to withstand the high temperatures and torque loads associated with towing. Additionally, the transfer case and differentials require specialized gear lubes. The front differential capacity is approximately 2.3 pints, while the rear and transfer case capacities vary based on the specific axle ratio and limited-slip equipment (G96, G86, or GLSI4), generally ranging around 3.2 pints for limited-slip applications. AMSOIL SEVERE GEAR 75W-85 Gear Lube is ideal for these components, providing friction modifiers for limited-slip differentials and preventing rust and corrosion.
About the Vehicle
The 2022 GMC Yukon represents the culmination of General Motors’ commitment to building a large, body-on-frame SUV that balances luxury with utility. Part of the GMT platform shared with the Chevrolet Suburban and Tahoe, the Yukon has long held a reputation for being a premium alternative to its corporate cousins, often featuring higher-end interior appointments and distinctive styling cues. The vehicle is built in Arlington, Texas, and serves as a direct competitor to other large SUVs in the American market, targeting families, outdoor enthusiasts, and those who require a vehicle capable of significant towing and hauling.
The 6.2L V8 engine (L87) is a powerhouse in the lineup, offering roughly 420 horsepower and 460 lb-ft of torque. This engine is designed for versatility, powering everything from daily commuting to towing trailers up to 8,400 pounds when properly equipped. The vehicle’s architecture includes a heavy-duty frame, independent front suspension, and a multi-link rear suspension that provides a comfortable ride quality despite its massive size. The interior is known for its spaciousness, with seating for up to seven or eight passengers depending on the configuration, and it often includes advanced technology features like the GMC infotainment system with available augmented reality navigation.
Despite its rugged capabilities, the Yukon owner can benefit from specific maintenance practices to address common issues associated with large-displacement engines and heavy usage. First, the engine can be prone to high-temperature stress, particularly when towing heavy loads or operating in extreme summer heat. Using a high-performance synthetic oil like AMSOIL Signature Series 0W-20 helps mitigate thermal breakdown, preventing the oil from thinning out and losing its protective properties under the hood. Second, the 6.2L engine and its turbochargers (if equipped on other trims) require oils that prevent coking and deposits. AMSOIL OE Motor Oil is specifically designed to protect turbochargers better than the GM dexos1 Gen 2 specification requires, keeping the engine cleaner over time.
Third, vehicles used for frequent towing and hauling often experience increased wear on the transmission and transfer case due to the sustained high torque loads. Synthetic transmission fluid is superior to conventional fluids in resisting shear and maintaining viscosity, which is critical for the longevity of the complex 10-speed transmission found in the Yukon. Finally, AMSOIL DOT 3 and DOT 4 Brake Fluid absorbs moisture over time, which can lower the boiling point and lead to brake fade or corrosion in the ABS module. Synthetic brake fluid resists this absorption and maintains a high boiling point, ensuring consistent pedal feel and safety in emergency stops. By addressing these specific areas with high-quality synthetic lubricants, Yukon owners can extend the life of their vehicle and maintain the performance and reliability they expect from their investment.