The 2018 Toyota Avalon powered by the 3.5L 6-cylinder 2GRFE engine is a testament to engineering reliability. It is a vehicle designed for long-term durability, comfort, and consistent performance. To maintain its reputation for smooth operation and fuel efficiency, adhering to the correct lubrication schedules is essential. Using the right fluids ensures that the internal components remain protected from wear, sludge, and extreme temperatures, preserving the vehicle’s value and driving characteristics for years to come.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – Provides unmatched protection for up to 25,000 miles or one year, offering 75% more engine protection against horsepower loss and wear compared to industry standards.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – Delivers 37% more cleaning power to keep the engine running smoother for up to 20,000 miles between changes.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A trusted choice that fights sludge and deposits, designed to meet or exceed original equipment manufacturer specifications for OEM-mileage protection.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for engines with over 75,000 miles, featuring boosted detergents and reduced sludge by 67% to extend engine life.
- AMSOIL Oil Filter – Offers 99 percent filtering efficiency at 20 microns with greater capacity for contaminants than competing filters, ensuring maximum lubrication for engine parts.
- WIX Oil Filter – Features premium media that offers improvements over original equipment manufacturer-branded filters for reliable protection.
- WIX Air Filter – Provides premium filtration to ensure clean airflow to the engine, maintaining efficiency and performance.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid formulation providing protection for 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 coolant option that greatly surpasses standards for metallic corrosion and erosion protection for up to 150,000 miles.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands heavy towing, elevated temperatures, and remains fluid in sub-zero conditions for maximum transmission longevity.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A cost-effective option that protects against wear and provides excellent cold-weather performance.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Features excellent ABS and traction-control responsiveness with stable viscosity over a wide temperature range.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Ideal for power steering systems and automatic transmissions, withstanding the rigors of heavy use and abuse.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Guards against leaks and promotes smooth, shudder-free shifts while resisting harmful sludge.
Understanding the specific requirements of your 2018 Avalon helps in making the right decisions for maintenance. This vehicle utilizes a V6 engine that demands consistent oil pressure and thermal stability. The engine oil capacity for a 2018 Toyota Avalon 3.5L with filter is 6.4 quarts. It is critical to select the correct viscosity, which is 0W-20 for all temperatures in this model. Using AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil ensures optimal fuel economy and smooth starting in cold weather, though it must be maintained and replaced with the same grade at every service interval. After refilling, always check the oil level to ensure accuracy. The drain plug torque should be set to 30 ft/lbs, and a new washer must be installed on the drain bolt every time to prevent leaks.
When it comes to the cooling system, the capacity is 9.7 quarts. Maintaining the correct antifreeze ratio is vital for the longevity of the water pump, radiator, and engine block. Both the AMSOIL Passenger Car & Light Truck Antifreeze & Coolant and the AMSOIL Propylene Glycol Antifreeze and Engine Coolant are excellent choices, offering extended protection against corrosion and freezing conditions. For the automatic transmission, the total fill capacity for the U660E 6-speed transmission is 6.9 quarts, with an initial fill of 3 quarts. Using a high-quality synthetic fluid like AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid here is crucial for preventing shudder and ensuring smooth gear shifts, especially under heavy loads or in extreme heat.
Fluids are not the only components that require attention. The WIX Air Filter plays a significant role in engine health by keeping dust and debris out of the intake. The WIX Air Filter is highly recommended for its premium media that outperforms standard OEM filters. Additionally, the WIX Oil Filter must be capable of capturing microscopic wear particles. The AMSOIL Oil Filter is designed to allow lower restriction while capturing contaminants that cause wear, extending the life of the engine between changes.
Vehicle Background
The 2018 Toyota Avalon represents the pinnacle of Toyota’s commitment to the full-size sedan market. Built on the TNGA-K platform, this generation of the Avalon marked a significant shift towards a sportier, more dynamic driving character while retaining its core identity as a comfortable, luxurious cruiser. Powered by the robust 3.5-liter V6 engine, code 2GRFE, the Avalon delivers a balance of power and efficiency that has made it a favorite among fleet managers and individual drivers alike. The engine produces a healthy amount of horsepower, providing confident acceleration and smooth highway merging without the need for excessive gear shifting. Its reputation for reliability is well-deserved, yet like any complex machine, it relies heavily on the quality of the fluids circulating through its system.
Drivers of the Avalon often appreciate its spacious interior, quiet cabin, and smooth ride quality. However, as the vehicle accumulates miles, specific maintenance needs arise that can be addressed with premium synthetic lubricants. One common issue with high-mileage engines is oil consumption due to seal hardening or piston ring carbon buildup. Switching to AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil can help mitigate this, as its unique chemistry includes seal conditioners and boosted detergents to reduce sludge by 67% and help the engine breathe better. Another frequent concern for owners of older Avalons is transmission shudder, which can affect the smoothness of the shift, particularly in stop-and-go traffic. Regularly changing the transmission fluid to AMSOIL OE Fuel-Efficient Automatic Transmission Fluid or the higher-performance Signature Series version can reduce the incidence of shudder and extend the life of the transmission bands and clutches.
Over time, the engine cooling system can become susceptible to corrosion, particularly in areas with varying climates or where the AMSOIL Propylene Glycol Antifreeze and Engine Coolant has not been changed for a long period. This can lead to overheating or radiator failure. The AMSOIL Propylene Glycol Antifreeze is designed to protect against metallic corrosion and erosion, ensuring the cooling system remains efficient for up to 150,000 miles. Furthermore, the fuel system can suffer from carbon buildup, especially in Direct Injection (GDI) engines which are common in modern Toyotas. This buildup can reduce fuel economy and power. Using AMSOIL P.i. Performance Improver Gasoline Additive can restore up to 14% horsepower and clean the injectors back to 100% flow rate after just one tank of treated fuel. These targeted solutions address the most common problems associated with maintaining a high-mileage Avalon, ensuring the vehicle continues to perform like new for years to come.