The 2022 Cadillac CT4 equipped with the 3.6L 6-cylinder engine code [Y] LF4 Y Turbo is a sophisticated powertrain designed for performance and precision. Maintaining this engine requires lubricants that meet strict manufacturer specifications while providing superior protection against the extreme temperatures and high stresses typical of modern turbocharged engines. Using the correct fluids not only ensures optimal performance but also extends the service life of the powertrain, transmission, and drivetrain components. This guide details the essential lubricants, filters, and additives required to keep your CT4 operating at its peak efficiency.
Recommended AMSOIL Products
For the 2022 Cadillac CT4 3.6L, AMSOIL offers a comprehensive range of synthetic lubricants designed to exceed OEM specifications. The following products are recommended for oil changes, filter replacements, and fluid top-offs.
- AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil – The premier choice for this engine, offering 75% more protection against horsepower loss and wear. It provides guaranteed protection for up to 25,000 miles or one year.
- AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil – Features 37% more cleaning power than AMSOIL OE motor oil, helping keep the engine running smoother with 20,000 miles of guaranteed protection.
- AMSOIL OE 5W-30 100% Synthetic Motor Oil – A cost-effective 100% synthetic option that fights sludge and deposits, specifically protecting turbochargers 72% better than required by the GM dexos1 Gen 2 specification.
- AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil – Formulated for vehicles with over 75,000 miles, this high-mileage motor oil reduces sludge by 67% and includes boosted detergents to clean internal engine components.
- AMSOIL Oil Filter – Engineered for 10,000 to 25,000 miles of service life depending on the oil used. It filters 99% of harmful wear-causing contaminants as small as 20 microns.
- WIX XP Oil Filter – A premium aftermarket alternative featuring advanced media that offers improvements over standard OEM-branded filters for maximum engine protection.
- WIX Oil Filter – A reliable standard oil filter option that works effectively with AMSOIL OE or High-Mileage motor oils.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that provides protection for up to 150,000 miles or 5 years, exceeding original equipment requirements.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula that can be mixed with water for maximum corrosion protection and longevity in high-performance cooling systems.
- AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid – Designed to withstand the rigors of heavy towing and elevated temperatures, this fluid remains fluid in sub-zero temperatures and provides reserve protection during abuse.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – An excellent choice for broad vehicle compatibility, offering resistance to sludge and shudder-free shifts in automatic transmissions.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – A budget-friendly synthetic option that guards against leaks and promotes smooth shifting while resisting thermal degradation.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Provides advanced protection against wear and thermal runaway in differentials, featuring friction modifiers ideal for limited-slip applications.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – A versatile gear lube that protects against rust, corrosion, and helps reduce operating temperatures in rear axles.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Offers excellent ABS and traction-control responsiveness with stable viscosity across a wide temperature range for safer stopping power.
When performing an oil change on the 3.6L LF4 engine, the capacity is 7.0 quarts when the filter is replaced. Always refill the engine and then check the oil level to ensure proper lubrication. The cooling system is equally critical for this high-output engine, requiring a total of 14.4 quarts for the engine and 2.9 quarts for the intercooler, depending on the service configuration.
Transmission and Drivetrain Protection
The 2022 Cadillac CT4 comes equipped with a 10L60 automatic transmission that demands a fluid capable of handling rapid shifts and high torque loads. For vehicles equipped with the 10L60 transmission, the total fill capacity is 10.9 quarts. If the transmission is equipped with a cooler, the capacity increases to 11.4 quarts. An initial fill requires approximately 8.1 quarts. Using a high-quality synthetic transmission fluid is essential to prevent shudder, delay wear, and ensure smooth operation in both cold starts and high-temperature driving conditions.
For those with manual transmission variants, the fluid capacity is listed as 7.4 pints for the transmission itself, with a total capacity of 5.0 quarts when including the transmission and differential oil coolers. The drain plug torque should be set to 20 ft/lbs. Additionally, the differential applications vary by rear axle code. The SL146 front differential requires specific gear lube, while the rear differentials, such as the 230 Rear Axle LSD or 205 Axle, require precise fill amounts ranging from 1.6 to 2.1 pints. AMSOIL SEVERE GEAR® lubricants are formulated to protect these gears from the high-pressure stresses of limited-slip differentials, controlling thermal runaway and preventing rust.
Brake fluid replacement is another often-overlooked maintenance item. For the CT4, AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is the recommended upgrade. Unlike conventional glycol-based fluids that absorb moisture over time, this synthetic fluid maintains a stable viscosity and high boil point, ensuring consistent pedal feel and ABS responsiveness in emergency stops. This fluid is compatible with the hydraulic brake systems specified by General Motors for this vehicle.
About the Vehicle
The 2022 Cadillac CT4 stands as a compelling option in the luxury compact sedan segment, representing the brand’s continued commitment to sporty elegance and advanced engineering. Introduced as the replacement for the Cadillac ATS, the CT4 was designed to compete with premium European rivals like the BMW 3 Series and the Mercedes-Benz C-Class. It offers a refined driving experience that balances comfort with a distinctively responsive handling character, making it a favorite among drivers who appreciate dynamic performance without sacrificing daily usability.
Under the hood, the 3.6L V-6 engine (Engine Code LF4) provides a robust power output that delivers smooth acceleration and confident passing power. This naturally aspirated V-6 is paired with a sophisticated 10-speed automatic transmission that seamlessly adjusts gear ratios for optimal fuel economy and performance. The powertrain is engineered to deliver linear power delivery, allowing drivers to exploit the vehicle’s agility in both city traffic and on winding backroads. The CT4 also offers a variety of trim levels and technology packages, ensuring that owners can customize their vehicle to suit their personal preferences and lifestyle needs.
Owners of the 2022 Cadillac CT4 often cite its premium interior materials, intuitive infotainment system, and advanced safety features as key reasons for their satisfaction. The vehicle’s platform is known for its structural rigidity, which contributes to a composed ride quality and precise steering feedback. Whether used as a daily commuter or a weekend enthusiast vehicle, the CT4 proves to be a versatile and reliable companion on the road.
While the CT4 is built to high standards, certain common issues can arise with the 3.6L LF4 engine and surrounding systems over time, which where high-quality synthetic lubricants can provide significant relief. One prevalent concern with this engine family is the potential for carbon buildup on the intake valves, particularly if the vehicle is frequently driven in stop-and-go traffic. The aggressive cleaning power of AMSOIL motor oils helps mitigate sludge and deposit formation, keeping the engine cleaner for longer periods. Another area of focus is the longevity of the turbocharger components; although the LF4 is naturally aspirated, other engines in the CT4 line feature turbos that are sensitive to oil starvation. Maintaining optimal oil flow and film strength is critical, and AMSOIL synthetic oils provide the necessary thermal stability to protect these delicate components. Additionally, the 10-speed automatic transmission can occasionally exhibit shudder or harsh shifting sensations if the fluid degrades under the stress of high torque. Using a premium synthetic transmission fluid like AMSOIL Signature Series ULV can smooth out these interactions and extend the service intervals significantly. Finally, brake fluid hygroscopy can lead to reduced boiling points and ABS issues; upgrading to AMSOIL’s synthetic DOT 3 and DOT 4 fluid eliminates moisture absorption, ensuring consistent braking performance throughout the year.