The 2016 Lexus LS460 is a sophisticated luxury sedan powered by a 4.6-liter 8-cylinder engine, specifically the 1UR-FSE. Proper lubrication is critical for this vehicle to maintain its reputation for smooth operation, fuel efficiency, and long-term durability. Using the correct viscosity and high-quality fluids ensures that the engine’s complex components, including its variable valve timing system, operate within optimal parameters. This guide outlines the specific AMSOIL products designed to meet the manufacturer’s requirements while offering superior protection against wear, heat, and contamination.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – The top-tier choice for this engine, providing exceptional protection against horsepower loss and wear for up to 25,000 miles.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – An excellent alternative offering extended change intervals of up to 20,000 miles with enhanced cleaning power to keep the engine running smoothly.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A value-oriented option that fights sludge and deposits, meeting the viscosity requirements for standard service intervals.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for vehicles exceeding 75,000 miles, featuring boosted detergents to clean internal components and reduce sludge.
- AMSOIL Oil Filter – Designed for this application, this filter provides 99% efficiency at 20 microns and helps reduce engine wear by allowing lower restriction and capturing contaminants.
- WIX Oil Filter – A premium aftermarket option compatible with AMSOIL oils, offering media improvements over original equipment manufacturer-branded filters.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Delivers maximum protection for the AA80E or AA80F 8-speed automatic transmission against wear and thermal breakdown.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A cost-effective choice that protects against wear while maintaining the fluid properties required for the vehicle’s transmission.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – Ideal for front differentials and limited-slip units requiring GL-5 rated lubricant, helping to reduce operating temperatures.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – A high-performance option specifically suited for rear limited-slip differentials requiring GLSD7 or GL-5 specifications.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Ensures excellent ABS responsiveness and a stable viscosity across a wide temperature range for superior stopping power.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix formulation that protects cooling system metals, gaskets, and hoses for up to 150,000 miles or 5 years.
Essential Engine Oil Specifications
The heart of the 2016 Lexus LS460 is its 4.6-liter V8 engine, known as the 1UR-FSE. This powerplant features a D-4S dual injection system, which combines direct and port injection to optimize performance and emissions. To support this technology, AMSOIL recommends a viscosity grade of 0W-20 for all temperatures. This thinner oil flows quickly at startup, reducing friction and fuel consumption, while maintaining a stable film at operating temperatures to protect critical engine parts.
The oil capacity for a complete change, including the filter, is 9.5 quarts. If the filter is replaced, ensure the total volume is sufficient to reach the proper level. It is crucial to check the oil level after refilling. The drain plug should be torqued to 30 ft/lbs, and a new washer must be installed on the drain bolt to prevent leaks. When selecting the right oil, consider your driving habits. For those seeking maximum protection and extended drain intervals, the Signature Series is the premier choice, tested to provide 75% more protection against horsepower loss and wear compared to industry standards. For drivers who prefer a balance of performance and value, the OE Motor Oil offers a robust 100% synthetic formulation that fights sludge effectively.
Engineers note that for vehicles with over 75,000 miles, maintaining seal health and cleaning internal deposits is vital. The 0W-20 High-Mileage Motor Oil contains enhanced anti-wear additives and a unique chemistry that reduces sludge by 67%, helping older engines run smoother and last longer. Pairing any of these oils with a high-efficiency filter is non-negotiable. The AMSOIL Oil Filter provides greater capacity for small, wear-causing contaminants than many competing filters, ensuring cleaner oil circulates through the engine. For those who prefer established aftermarket brands, the WIX Oil Filter is also an excellent choice, featuring premium media that offers improvements over OEM-branded filters.
Transmission and Differential Care
The transmission in the LS460 is a robust 8-speed automatic (AA80E for RWD or AA80F for AWD). These transmissions require precise fluid characteristics to manage the complex gear shifts and torque converter operation. Initial fill capacities are lower, at 3.4 quarts, but a total fill for an 8-speed RWD system requires 10.9 quarts, while the AWD version requires 11.3 quarts. Using a high-quality synthetic fluid is essential to prevent thermal breakdown and wear during heavy use or extreme temperatures.
For the best performance, the Signature Series Fuel-Efficient Automatic Transmission Fluid withstands the rigors of heavy towing and elevated temperatures while remaining fluid in sub-zero conditions. It provides reserve protection during abuse. Alternatively, the OE Fuel-Efficient Automatic Transmission Fluid offers reliable protection against wear and is formulated to meet the stringent requirements of the transmission manufacturer.
The differential systems also benefit from synthetic lubrication. The front AWD differential requires 1.7 pints, and the rear RWD differential requires 3 pints of 75W-85 gear lube. For limited-slip differentials in the rear, whether AWD or RWD, a GLSD7 or GL-5 rated fluid is necessary. The SEVERE GEAR® 75W-85 controls thermal runaway and contains friction modifiers for limited-slip applications. If the application specifically calls for a thicker viscosity, the SEVERE GEAR® 75W-90 is designed for these conditions, offering superior extreme pressure protection and rust inhibition.
Cooling and Brake System Fluids
Maintaining the cooling system is equally important for the longevity of the 1UR-FSE engine. The cooling system capacity differs slightly based on the drive type: 11.7 quarts for All-Wheel Drive models and 11.6 quarts for Rear-Wheel Drive models. The Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix formulation that exceeds original equipment requirements. It is phosphate, nitrate, and silicate-free, making it safe for all cooling system metals and hoses, with a service life of up to 150,000 miles or 5 years. For those who prefer a concentrated fluid that requires mixing with distilled water, the Propylene Glycol Antifreeze and Engine Coolant offers excellent protection against corrosion and erosion, suitable for passenger cars and light trucks.
Brake safety cannot be overlooked. The LS460 utilizes hydraulic brake fluid meeting DOT 3 specifications. The DOT 3 and DOT 4 100% Synthetic Brake Fluid provides stable viscosity over a wide temperature range and ensures excellent ABS and traction-control responsiveness. This high-performance fluid helps eliminate the boiling points that can lead to brake fade during aggressive driving or mountain descents.
Vehicle Background
The 2016 Lexus LS460 represents the pinnacle of the LS series, a line that has defined the luxury sedan segment since its introduction. Built on the TNGA-L platform architecture (or the preceding rear-wheel-drive platform depending on specific market updates, but generally associated with high-end engineering), the LS460 is renowned for its blend of serene driving dynamics and cutting-edge technology. The 4.6-liter V8 engine is a masterpiece of modern engineering, utilizing a dual-injection system that allows it to deliver power smoothly across the rev range while meeting strict emissions standards.
Owners of this vehicle often cite its “limousine-like” ride quality as a standout feature. The independent rear suspension works in harmony with the adaptive variable suspension to absorb road imperfections, creating a quiet and comfortable cabin environment. This model is particularly favored by professionals and families who require a spacious interior with rear-seat amenities that rival dedicated limousines. The LS460 also incorporates Lexus Safety System-P in later iterations of the platform, enhancing its reputation for proactive safety. While it is a rear-wheel-drive based vehicle (with AWD options available), its weight distribution and handling characteristics allow for confident cornering, distinguishing it from softer competitors. The engine, designated as the 1UR-FSE, is known for its reliability and efficiency when properly maintained, making it a favorite among enthusiasts who appreciate Japanese craftsmanship and long-term durability.
Seasonal and Additional Maintenance
For vehicle owners who engage in seasonal storage, protecting the fuel system and engine internals is crucial to prevent varnish buildup and internal rust. The AMSOIL Gasoline Stabilizer keeps fuel fresh for up to 12 months, which is ideal for snowmobiles, boats, or any equipment that sits for extended periods. Similarly, the Engine Fogging Oil provides a protective coating on internal components to guard against corrosion during storage.
To ensure the engine runs at peak performance year-round, the P.i. Performance Improver is a powerful additive that restores fuel injectors to 100% flow rate and improves fuel economy. It is compatible with capless fuel systems and helps prevent carbon buildup, especially in direct injection engines. For those looking to clean the fuel system further, the Upper Cylinder Lubricant lubricates the fuel system and upper cylinders, offering protection against corrosion. For exterior maintenance, products like the High-Foam Car Shampoo and Exterior Ceramic Spray help maintain the vehicle’s finish against UV rays and dirt, while the Brake and Parts Cleaner ensures brake components are free of grease and grime for safe operation.