The 2022 Cadillac CT4 equipped with the turbocharged 2.7L 4-cylinder engine is a high-performance sedan that demands premium lubrication to maintain its power and reliability. This specific engine, identified by the code L3B, operates under significant thermal stress due to its turbocharger and direct injection technology. Using the correct viscosity and formulation is critical for preventing sludge buildup, reducing turbo lag, and ensuring the longevity of internal components. AMSOIL synthetic lubricants are engineered to exceed the strict GM dexos1 Gen 2 specifications required for this vehicle, offering superior protection against wear and deposit formation compared to conventional oils.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil – Provides unsurpassed engine protection for up to 25,000 miles or one year, with 75% more protection against horsepower loss and wear. It is specifically tested to protect turbochargers 72% better than required by GM specifications.
- AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil – Offers extended protection for up to 20,000 miles or one year with 37% more cleaning power to keep the engine running smoother and longer while fighting LSPI (Low-Speed Pre-Ignition).
- AMSOIL OE 5W-30 100% Synthetic Motor Oil – An affordable, API Licensed option that fights sludge and deposits with a 100% synthetic formulation, delivering protection comparable to the highest industry standards.
- AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil – Formulated specifically for vehicles with over 75,000 miles, featuring boosted detergents and enhanced anti-wear additives to reduce sludge and help engines last longer.
- WIX Oil Filter – Features premium filtration media that offers improvements over original equipment manufacturer (OEM) branded filters, ensuring clean oil flow for the engine.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A pre-mixed, 50/50 ethylene glycol formulation providing protection for up to 150,000 miles or 5 years, engineered to exceed OEM requirements and compatible with all cooling system metals.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula offering superior corrosion and erosion protection for up to 150,000 miles (or 240,000 km), free of phosphates, nitrates, and other harsh chemicals.
- AMSOIL Signature Series ULV 100% Synthetic Automatic Transmission Fluid – Withstands heavy towing, elevated temperatures, and sub-zero conditions, providing reserve protection for the 10-speed automatic transmission found in this model.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Delivers advanced protection against wear and thermal runaway for the front differential, with friction modifiers suitable for limited-slip applications.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – An excellent choice for the rear axle, offering superior temperature control and protection against rust and corrosion for both standard and limited-slip differentials.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Provides excellent responsiveness for ABS and traction-control systems, maintaining stable viscosity across a wide temperature range for superior braking performance.
When maintaining the 2022 Cadillac CT4, understanding the specific fluid capacities and requirements is essential for a successful service. The engine oil capacity for the 2.7L L3B turbocharged engine is 6.0 quarts when changing the filter as well. It is crucial to check the oil level after refilling, as overfilling or underfilling can lead to performance issues or engine damage. The torque specification for the oil drain plug is 2 ft/lbs, which should be tightened by hand until fully seated to ensure a proper seal without stripping the threads.
For the cooling system, the 2022 CT4 holds a capacity of 13.7 quarts. AMSOIL offers two distinct types of antifreeze that are compatible with this vehicle’s requirements. The Passenger Car & Light Truck Antifreeze & Coolant comes pre-mixed as a 50/50 solution, ready to use and providing protection for up to 150,000 miles or five years. Alternatively, the Propylene Glycol Antifreeze is a concentrated option that requires mixing with distilled water, offering extended service intervals and superior thermal protection.
Transmission and Differential Lubrication
The 2022 Cadillac CT4 is equipped with an advanced 10-speed automatic transmission that relies heavily on high-quality fluid to manage the complex gear shifts and high torque output. The total fill capacity for the transmission with the cooler is 11.4 quarts, while a complete fill without the cooler requires 10.9 quarts. An initial fill of 8.1 quarts is recommended during specific service procedures. AMSOIL Signature Series ULV Automatic Transmission Fluid is specifically designed to handle the rigors of this 10L60 transmission, remaining fluid in sub-zero temperatures and providing a reserve of protection during heavy use and abuse.
For the differential systems, the 2022 CT4 utilizes different capacities depending on the axle configuration. The front differential requires 0.8 pints of lubricant. The rear differential varies significantly based on the specific model, such as the 230 Axle LSD or the 205 Axle. The 230 Rear Axle LSD requires 2.1 pints, while the 205 Rear Axle requires 1.6 pints. For all these applications, AMSOIL SEVERE GEAR synthetic gear lubes in either 75W-90 or 75W-85 viscosity provide the necessary friction modifiers for limited-slip applications and protect against thermal runaway, which is a common concern in high-performance rear axles.
Brake Fluid and System Maintenance
The braking system on the Cadillac CT4 benefits greatly from regular maintenance with a high-quality synthetic brake fluid. The recommended specification for the HBH system is DOT 4. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid ensures excellent responsiveness for both ABS and traction control systems. Unlike conventional fluids that can absorb moisture and lower boiling points, the AMSOIL formula maintains stable viscosity over a wide temperature range, reducing the risk of brake fade during spirited driving or track use.
In addition to the major fluid changes, owners should consider using AMSOIL P.i. Performance Improver Gasoline Additive. This additive helps restore up to 14% horsepower and cleans GDI fuel injectors to 100% flow rate after just one tank of fuel. It also improves fuel economy and reduces the need for higher-octane fuel, helping to prevent carbon buildup and pre-ignition knock. For seasonal storage, AMSOIL Gasoline Stabilizer keeps fuel fresh for up to 12 months, protecting against varnish and gum buildup caused by ethanol corrosion.
About the Vehicle: 2022 Cadillac CT4
The 2022 Cadillac CT4 represents a significant evolution in the luxury compact sedan segment, serving as the successor to the ATS and establishing a new benchmark for performance and technology. Manufactured by General Motors, the CT4 is built on the GM Global C2 platform, which is shared with other GM compact vehicles but tuned specifically for Cadillac’s premium branding. The vehicle was designed to compete directly with European rivals like the BMW 3 Series and the Mercedes-Benz C-Class, offering a compelling mix of athletic handling, modern interior design, and advanced connectivity features.
The specific model covered in this guide, the 2.7L Turbo 4-cylinder, is powered by the LG3 engine code (often associated with the L3B designation in this context). This engine features variable valve timing and a twin-scroll turbocharger to deliver robust power and torque. While the CT4 also comes with a 2.0L turbo and a 3.6L V-6 option, the 2.7L variant is known for its impressive power output and is often found in the Sport, AWD, or V-Series models. The vehicle typically features a sleek, athletic design with a bold vertical LED lighting signature and a driver-focused cockpit. It is available in various trims, including the Luxury, Sport, and the high-performance CT4-V and CT4-V Blackwing, which push the engineering limits even further.
Owners of the 2022 Cadillac CT4 appreciate the vehicle’s precise steering and composed ride quality, which make it a joy to drive on both city streets and winding backroads. The interior boasts high-quality materials, including available leather and open-pore wood trim, creating a sophisticated environment. Infotainment is handled by the Cadillac User Experience (CUE) system, which offers a responsive touchscreen and seamless smartphone integration via Apple CarPlay and Android Auto. The CT4 is often praised for its balance of practicality and sportiness, offering a trunk that is surprisingly spacious for its class, along with a comfortable rear seat that makes it suitable for daily commuting as well as weekend getaways.
While the CT4 is a robust and well-engineered machine, it does face specific maintenance challenges that proper lubrication can help mitigate. One common issue observed in the L3B engine family is the potential for turbocharger lag and carbon buildup on intake valves due to direct injection. Regular use of high-quality synthetic motor oil helps prevent the formation of harmful deposits in the turbo and oil passages, while the P.i. gasoline additive cleans the fuel injectors and intake valves to maintain optimal airflow and performance.
Another area of concern for the 2022 CT4 is the 10-speed automatic transmission, which requires constant fluid conditioning to ensure smooth shifts. Over time, transmission fluid can degrade or become contaminated, leading to shuddering or harsh shifting. Using a high-performance synthetic transmission fluid like AMSOIL ULV helps maintain the fluid’s viscosity and protective properties, reducing wear on the complex clutch packs and torque converter. Additionally, the rear differential in AWD models or those with limited-slip axles is subject to high stress during aggressive driving. Synthetic gear lube prevents thermal runaway and protects the gear surfaces from wear, ensuring the differential operates silently and efficiently throughout the vehicle’s life.
Finally, the cooling system plays a vital role in the longevity of the turbocharged engine. Over time, coolant can break down and lose its corrosion inhibitors, leading to potential leaks or overheating. AMSOIL antifreeze and coolant formulations provide long-term protection for the aluminum engine block and various metal components within the cooling system. By adhering to the recommended service intervals and using the correct AMSOIL lubricants, owners can ensure their 2022 Cadillac CT4 continues to deliver the performance and luxury that the brand is known for, avoiding common pitfalls and maximizing the vehicle’s lifespan.