The 2016 Lexus IS350 is a refined performance sedan powered by the legendary 3.5-liter V6 engine, known as the 2GR-FSE. This powerplant is designed for a blend of spirited acceleration and high-end efficiency, making the choice of lubricants critical for maintaining its performance characteristics. Using the correct viscosity and specification is not just a recommendation; it is a necessity to ensure the engine operates within its precise tolerances and to protect against the thermal stresses of the vehicle’s high-revving nature. Proper lubrication extends the life of internal components, supports fuel economy, and helps the vehicle maintain its reputation for reliability and smooth driving dynamics.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – This premium synthetic oil offers the highest level of protection for your engine, reducing wear and maximizing performance. It is rated for extended oil change intervals, providing up to 25,000 miles of protection between changes.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – An excellent choice for drivers who prefer a balance of protection and value, this oil delivers up to 20,000 miles of extended drain protection while cleaning power to keep the engine running smoother.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – Designed to outperform conventional oils while meeting OEM mileage expectations, this oil is a great entry point into AMSOIL synthetic protection, effectively fighting sludge and deposits.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Formulated specifically for engines with over 75,000 miles, this fluid features a unique chemistry with boosted detergents and reduced sludge to help older engines last longer and perform better.
- AMSOIL Oil Filter – Engineered to work seamlessly with the recommended oils, this filter captures 99 percent of harmful contaminants at 20 microns, reducing engine wear and offering extended service life.
- WIX Oil Filter – A high-quality aftermarket alternative that offers premium media with improvements over standard OEM-branded filters, ensuring reliable filtration performance.
Selecting the right oil is the first step in a comprehensive maintenance strategy. While engine oil takes center stage, the cooling, transmission, and differential systems require their own dedicated attention. The 2016 IS350 utilizes a complex cooling system to manage the heat generated by the high-performance V6 engine. Maintaining this system with a high-quality antifreeze is vital to prevent corrosion and overheating, ensuring the engine stays at its optimal operating temperature in both winter and summer conditions.
Transmission and Differential Lubrication
The Lexus IS350 comes equipped with different transmission options depending on whether it is configured with rear-wheel drive or all-wheel drive. For the 6-speed automatic (A760H) found in AWD models, the total fill capacity is 10.6 quarts, with an initial fill of 1.7 quarts. The 8-speed automatic (AA81E) in RWD models requires a total of 10 quarts, with 3.4 quarts needed for an initial fill. Standard factory fluids may degrade over time, potentially leading to harsh shifts or wear. Using a high-performance synthetic Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid or OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid can help the transmission remain fluid in sub-zero temperatures and withstand the rigors of heavy use, elevated temperatures, and challenging terrain. This protection helps reserve performance during heavy towing or spirited driving, ensuring long-term transmission health.
Differential lubrication is equally important, particularly for AWD models which rely on the front and rear differentials for power distribution. The front differential for AWD vehicles requires specific GL-5 lubricants. For applications operating in temperatures above -18°C, an 80W-90 fluid is recommended with a capacity of 1.5 pints. In colder climates below -18°C, an 80W-90 or 75W-90 viscosity is necessary to maintain proper flow. The rear differential, on the other hand, requires a 75W-85 fluid, typically filled to a capacity of 3 pints. Using the correct AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube, AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube, or AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube ensures that the limited-slip differentials operate smoothly and that metal-to-metal contact is minimized, reducing wear and extending the life of the drivetrain components.
Coolant, Brake Fluid, and Additional Care
Beyond the powertrain, other vital fluids keep the vehicle safe and running smoothly. The cooling system for the 2016 Lexus IS350 has a capacity of 10.1 quarts. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix formulation that provides protection for up to 150,000 miles or five years. It is compatible with all cooling system metals, gaskets, and hoses, ensuring no damage occurs to the aluminum and rubber components of the engine. For those who prefer a concentrated option, AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers even longer protection and is suitable for heavy-duty applications as well.
Braking performance is non-negotiable for a vehicle of this caliber. The 2016 IS350 utilizes a hydraulic brake system requiring DOT 3 brake fluid. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid provides excellent responsiveness for ABS and traction-control systems. It maintains stable viscosity across a wide temperature range, ensuring the brakes feel consistent whether the car has been sitting in a garage overnight or driving in hot summer traffic. For seasonal storage, AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, protecting against ethanol corrosion and varnish buildup, while AMSOIL P.i. Performance Improver Gasoline Additive can restore horsepower and clean fuel injectors to maximize efficiency.
About the 2016 Lexus IS350
The 2016 model year of the Lexus IS350 represents a mature iteration of the third-generation IS lineup, which was introduced to the market in 2013 as a facelift of the previous second generation. This model year continued to solidify the IS350’s reputation as a driver-focused luxury sport sedan. At its heart lies the 3.5-liter V6 engine, designated as the 2GR-FSE. This direct-injection, naturally aspirated engine is renowned for its smooth power delivery and reliability. It produces a substantial amount of horsepower, offering a blend of acceleration that satisfies performance enthusiasts while maintaining the refinement and quietness expected from the Lexus brand.
This vehicle sits comfortably in the competitive landscape of German and Japanese luxury sedans, offering a compelling alternative with a lower entry price point while retaining high build quality. The IS350 is available in rear-wheel drive and all-wheel drive configurations, allowing owners to choose based on their local climate and driving preferences. The AWD system is particularly notable for its ability to seamlessly transfer power to the wheels with the most traction, enhancing safety and stability in adverse weather conditions without sacrificing the car’s sporty handling dynamics. Owners appreciate the IS350 for its engaging steering feel and tight chassis, making it a favorite for those who enjoy driving but still demand daily usability and comfort.
Inside, the cabin continues the Lexus tradition of high-quality materials, offering a quiet environment that isolates occupants from road noise. The design balances modern technology with classic Lexus ergonomics, ensuring that drivers and passengers alike feel at ease. Whether navigating city streets or cruising on the highway, the 2016 IS350 provides a comfortable and confident driving experience. Proper maintenance, starting with the correct lubricants, is the key to preserving this balance of performance and luxury for years to come. By selecting the appropriate AMSOIL fluids, owners can ensure their vehicle continues to perform at its peak, protecting their investment and enjoying the drive.