Keeping your 2009 Acura TSX running smoothly requires more than just a simple oil change; it demands the correct fluids and high-performance lubricants designed to meet the specific needs of the K24Z3 engine. This vehicle, powered by a 2.4-liter inline-four, benefits significantly from the advanced protection offered by 100% synthetic lubricants. Whether you are navigating city traffic on a daily commute or pushing the car on a winding backroad, the right maintenance schedule ensures longevity and optimal performance. Proper lubrication minimizes wear, reduces operating temperatures, and helps maintain fuel efficiency over the life of the vehicle.
Recommended AMSOIL Products
For the engine, the primary requirement is a 5W-20 viscosity oil. Below are the top AMSOIL synthetic motor oil options tailored for this application, along with the appropriate filters to ensure peak filtration.
- AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil – This premium synthetic oil offers the highest level of protection against horsepower loss and wear, with extended drain intervals of up to 25,000 miles or one year for normal service.
- AMSOIL Extended-Life 5W-20 100% Synthetic Motor Oil – An excellent choice for drivers who want long-lasting cleaning power and protection against Low-Speed Pre-Ignition (LSPI), supporting up to 20,000 miles between changes.
- AMSOIL OE 5W-20 100% Synthetic Motor Oil – Designed to outperform conventional oils and meet OEM requirements, this fluid effectively fights sludge and deposits while providing robust engine protection.
- AMSOIL 5W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for vehicles with over 75,000 miles, this oil contains enhanced additives to reduce sludge and protect older engines.
- AMSOIL Oil Filter – Engineered to provide 99% filtration efficiency at 20 microns, this filter allows lower restriction to keep engine parts lubricated and holds a greater capacity for contaminants.
- WIX Oil Filter – A premium alternative featuring media that offers improvements over original equipment manufacturer branded filters, ensuring high flow and protection.
Complete Fluid System Overview
Maintenance extends beyond the crankcase. The 2009 Acura TSX has specific requirements for its transmission, cooling system, and braking components. Using the wrong fluid can lead to premature wear or shifting issues. Below is a breakdown of the recommended lubricants for these critical systems.
Transmission Fluids
The transmission system varies depending on whether the TSX has a 5-speed or 6-speed manual setup, or if it is an automatic model. For the automatic transmission, the total fill capacity for the 5-speed MM7A unit is approximately 6.9 quarts, with an initial fill of 2.6 quarts. AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid is designed to withstand heavy towing, elevated temperatures, and challenging terrain while remaining fluid in sub-zero conditions. Alternatively, the AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid offers excellent resistance to sludge, guards against leaks, and promotes smooth, shudder-free shifts. For manual transmissions, specifically the 6-speed SM5M, the capacity is 4 pints. The AMSOIL 5W-30 Manual Synchromesh Transmission Fluid is formulated for maximum protection in synchromesh transmissions, reducing friction and heat while improving cold-weather shifting.
Cooling System
The cooling system capacity varies based on the engine model configuration, ranging from 6.4 to 6.6 quarts. Maintaining the correct mixture is vital for preventing overheating and corrosion. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant provides up to 150,000 miles or 5 years of protection with a unique poly-organic acid formulation that is free of phosphates, nitrites, and silicates. For those preferring a concentrated option, the AMSOIL Propylene Glycol Antifreeze and Engine Coolant is an excellent choice, offering up to 150,000 miles or 5 years of protection in passenger cars and light trucks, and up to 1,000,000 miles in heavy-duty applications.
Brake Fluid
Ensuring the braking system remains responsive is crucial for safety. Acura recommends a heavy-duty DOT 3 brake fluid. The AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid provides excellent ABS and traction-control responsiveness while maintaining a stable viscosity across a wide temperature range, ensuring reliable braking performance in all weather conditions.
Engine Oil Specifications and Capacity
When performing an oil change on your 2009 Acura TSX, it is important to adhere to the manufacturer’s capacity guidelines. The engine requires 4.2 quarts of oil when including a filter change. For models using 0W-20, the same capacity applies. After refilling, always check the oil level to ensure it is within the proper range. The drain plug torque specification should be set to 30 ft/lbs to prevent leaks or damage. Using the correct viscosity, such as 5W-20 or 0W-20 depending on the ambient temperature and driving conditions, is essential for maintaining fuel economy and engine longevity.
Additional Maintenance and Protection
Beyond the core lubrication needs, there are several additives and care products that can enhance the performance of your TSX. The AMSOIL P.i.® Performance Improver Gasoline Additive is highly recommended for restoring fuel injectors and improving fuel economy, especially in vehicles that may have experienced carbon buildup. For vehicles that are stored seasonally or driven infrequently, the AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, preventing varnish and gum buildup. During winter or long-term storage, the AMSOIL Engine Fogging Oil provides a rust preventive layer to protect internal engine components.
Vehicle Care and Detailing
Maintaining the exterior and interior of your TSX also plays a role in preserving its value. The AMSOIL Miracle Wash Waterless Wash and Wax Spray offers a fast, effective cleaning solution that requires no soap or water, repelling dust and protecting against UV rays. For deeper cleaning, the AMSOIL Heavy-Duty Degreaser quickly removes oil, tar, and grime from engine surfaces and parts. If you prefer a waterless approach for cleaning, the AMSOIL Engine Fogging Oil can be used to protect components, while AMSOIL Brake and Parts Cleaner effectively removes contaminants from brake parts without leaving residue.
Interior and Exterior Protection
To keep the cabin fresh and the exterior looking new, consider using AMSOIL Interior Detailer – Light Lemon or the Scent Free version, both of which offer 90-day UV protection and trap odors. For the exterior, the AMSOIL Exterior Ceramic Spray provides rapid water shedding and UV protection without requiring cure time. If you need to clean windows or glass surfaces, the AMSOIL Glass Cleaner cuts through grease and grime without streaking.
Using high-quality lubricants from AMSOIL ensures that every component of your 2009 Acura TSX, from the engine block to the brake calipers, receives the care it needs to operate efficiently. Whether you opt for the premium Signature Series or the value-oriented OE line, you are making a choice that prioritizes engine health and performance. Remember to consult your owner’s manual for specific service intervals and always verify fluid levels after any maintenance work.
About the 2009 Acura TSX
The 2009 Acura TSX is a compact luxury sedan that represents a refined evolution of the Honda Accord platform, tailored specifically for the North American market. Powered by the K24Z3 2.4-liter inline-four engine, this vehicle delivers a balance of spirited performance and everyday reliability. It was a popular choice for drivers seeking a premium driving experience without the high cost of a full-size luxury import. The TSX is known for its responsive handling, composed chassis, and a sophisticated interior that sets it apart from standard sedans of its time. Equipped with a 6-speed manual transmission or a 5-speed automatic, the TSX offers engaging dynamics that appeal to driving enthusiasts. The model, often seen with a power output around 201 horsepower, provides a smooth and linear power delivery that is characteristic of Acura’s engineering philosophy. Its front-wheel-drive layout, combined with a well-tuned suspension, ensures confident cornering and a comfortable ride. The 2009 model year specifically benefited from previous design improvements, making it a reliable and durable option for those looking for a compact luxury vehicle. Owners often praise its build quality and the fact that it shares many robust mechanicals with the highly-regarded Honda Civic and Accord families, making it a practical yet stylish choice for daily commuting or spirited drives on weekends.