The 2022 Kia SOUL equipped with the 2.0-liter four-cylinder engine is a compact crossover designed for urban versatility and daily reliability. While the factory fills the engine with a standard 0W-20 viscosity oil, owners who demand maximum longevity and performance protection will find that high-quality synthetic lubricants offer significant advantages. Proper maintenance of this specific engine code requires adherence to the correct viscosity, capacity, and filtration standards to ensure smooth operation across all driving conditions.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – Provides the highest level of protection against horsepower loss and wear, ideal for drivers seeking up to 25,000 miles of guaranteed service intervals.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – Offers 37% more cleaning power to keep the engine running smoothly with a guaranteed protection interval of up to 20,000 miles.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A cost-effective 100% synthetic option that fights sludge and deposits, offering reliable protection comparable to OEM specifications.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for engines with over 75,000 miles, featuring reduced sludge and enhanced cleaning to extend vehicle life.
- AMSOIL Oil Filter – Delivers 99% filtering efficiency at 20 microns with reduced restriction and greater capacity to capture wear-causing contaminants.
- WIX Oil Filter – A premium alternative with media improvements over standard OEM-branded filters, compatible with the OE synthetic oil option.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A phosphate-free ethylene glycol pre-mix that protects all cooling system metals and extends protection up to 150,000 miles or five years.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that requires mixing with water, offering superior protection against corrosion and erosion for up to 150,000 miles.
- AMSOIL 100% Synthetic CVT Fluid – Delivers exceptional metal-to-metal frictional properties for the continuous variable transmission, ensuring smooth operation under severe conditions.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Ensures excellent ABS and traction-control responsiveness with a stable viscosity range to prevent brake fade and boiling.
Ensuring the correct fluid levels and types are used in the 2022 Kia SOUL is critical for maintaining the vehicle’s warranty and operational efficiency. The 2.0-liter four-cylinder engine, identified by the engine code [U] U, requires 4.2 quarts of oil when a filter change is performed. It is essential to verify the oil level after the refill and torque the drain plug between 25 and 33 foot-pounds. Using a filter with a gasket and adhering to these torque specifications prevents leaks and ensures the filtration system seals correctly under pressure.
Engine Oil and Filtration Standards
The engine in this model benefits significantly from full synthetic motor oil, particularly in variable driving environments. While conventional oils meet minimum standards, AMSOIL’s Signature Series formulation contains a unique balance of synthetic base stocks and additive packages that outperform the requirements of GM dexos1 Gen 2 specifications. This means the oil provides enhanced protection for turbochargers and other sensitive internal components against sludge buildup and viscosity breakdown. For those driving older vehicles in this lineup with high mileage, the High-Mileage variant introduces boosted detergent packages and anti-wear additives to reduce sludge by 67%, helping to restore and maintain engine performance.
Filtration is equally important. The standard AMSOIL Oil Filter (EA15K20-EA) is engineered to allow lower restriction, which keeps oil flowing freely to lubricate engine parts, while offering a higher capacity for small contaminants compared to competing filters. This extended service life capability supports the long drain intervals that synthetic oil users desire. Alternatively, the WIX Oil Filter (51334-EA) serves as a high-quality OEM replacement option for those pairing it with AMSOIL OE 0W-20, offering premium media that outperforms standard equipment filters.
Transmission and Cooling System Care
The transmission in the 2022 Kia SOUL with the 2.0L engine typically utilizes a CVT (Continuously Variable Transmission) for this application. The recommended fluid capacity is 7.1 quarts for a total fill. Maintaining the health of this transmission is vital, as CVT units rely heavily on specific frictional properties to operate smoothly. AMSOIL 100% Synthetic CVT Fluid is designed to provide the exact metal-to-metal frictional properties required, protecting the transmission from wear, sludge, and temperature-related issues that can lead to costly repairs.
Similarly, the cooling system requires robust protection. Whether the vehicle utilizes the MTXL5.8 quarts or ATXL5.8 quarts coolant capacity, the AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is an ideal choice. This formulation is an organic acid technology (OAT) blend that is free of phosphates, nitrites, silicates, and borates, making it safe for all metals and hoses in the cooling system. It provides protection for up to 150,000 miles or five years. For those preferring a concentrated option, the Propylene Glycol Antifreeze and Engine Coolant offers similar extended protection and requires mixing with distilled water to achieve the desired 50/50 blend.
Brake Fluids and Fluid Additives
Brake safety should never be compromised. The 2022 Kia SOUL requires brake fluid that meets FMVSS116 standards, specifically DOT-3 or DOT-4. Over time, brake fluid absorbs moisture, which lowers its boiling point and can lead to spongy brakes or failure under heavy load. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid maintains a stable viscosity across a wide temperature range, ensuring consistent pedal feel and optimal ABS responsiveness. This fluid protects against corrosion in the brake lines and master cylinder, extending the life of the braking system.
Additionally, for those looking to maximize fuel economy and engine cleanliness, AMSOIL P.i. Performance Improver is a powerful gasoline additive. This product is designed to restore fuel injectors, specifically GDI (Gasoline Direct Injection) types, to 100% flow rate. It can help restore up to 14% of lost horsepower and improve fuel economy while reducing the need for higher-octane fuel. It also helps control pre-ignition knock and is compatible with capless fuel systems.
Vehicle Background: The 2022 Kia SOUL
Since its introduction, the Kia SOUL has carved out a unique niche in the compact crossover segment. Known for its boxy, “tall-boy” design, the SOUL offers a spacious interior that belies its compact footprint. The 2022 model continues this legacy, offering drivers a blend of style, utility, and affordability. The 2.0-liter four-cylinder engine provides a balanced approach to power and efficiency, delivering smooth acceleration suitable for city commuting and highway merging without the complexity or maintenance costs associated with turbocharged engines.
The SOUL’s platform is designed to maximize interior volume, resulting in generous headroom and a flat cargo floor that makes it an excellent choice for urban dwellers, families, and active lifestyles. The exterior styling often attracts younger demographics with its customizable options and modern aesthetic. While the vehicle is known for reliability, owners often report a desire to upgrade from standard factory fluids to extend the vehicle’s life and performance beyond the manufacturer’s basic recommendations.
Common issues or areas where enhanced lubrication helps include engine sludge accumulation over time, which can be mitigated by the superior cleaning power of AMSOIL motor oils. High-mileage SOULs may experience increased oil consumption or minor leaks, which the additive package in the High-Mileage motor oil can help manage by revitalizing seals. Transmission noise or shuddering in CVT-equipped models can often be smoothed out by switching to a higher-quality synthetic CVT fluid. Furthermore, brake fluid hygroscopy—the absorption of water over time—is a universal issue for modern vehicles; regular flushing with synthetic brake fluid ensures consistent stopping power and prevents corrosion in the ABS modulator, a common repair point.
The SOUL is also popular for its adaptability. Whether used as a daily commuter or a weekend hauler, the vehicle benefits from a comprehensive fluid change program. Using the correct viscosity 0W-20 oil ensures cold-start protection and fuel efficiency, while the extended drain intervals possible with AMSOIL products reduce the total cost of ownership. The 2022 model year represents a mature iteration of the SOUL lineup, where the combination of proven mechanicals and modern conveniences creates a reliable companion for a wide variety of driving needs.