Keeping a 2016 Ford Fusion running smoothly starts with the fluids that keep its heart beating. The 1.5-liter EcoBoost turbocharged engine is a compact powerhouse, designed for efficiency without sacrificing performance. However, turbochargers run at incredibly high temperatures and rotational speeds, placing unique demands on the lubrication system. Using the wrong oil or extending service intervals beyond what is safe can lead to premature wear, reduced fuel economy, and costly repairs. This guide details the specific fluid capacities, filter recommendations, and AMSOIL products designed to meet the rigorous engineering requirements of this popular sedan.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil – Offers the highest level of protection against wear and horsepower loss, with guaranteed service intervals up to 25,000 miles or one year for this engine.
- AMSOIL Extended-Life 5W-20 100% Synthetic Motor Oil – Delivers extended drain protection for up to 20,000 miles with superior cleaning power to help keep the engine running smoothly over time.
- AMSOIL OE 5W-20 100% Synthetic Motor Oil – An affordable option that outperforms conventional oils while meeting original equipment manufacturer specifications.
- AMSOIL 5W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for engines with over 75,000 miles to boost detergency, reduce sludge, and help prevent oil consumption.
- AMSOIL Oil Filter – Provides 99 percent filtration efficiency at 20 microns, offering extended service life to match synthetic oil performance.
- WIX Oil Filter – A premium aftermarket alternative featuring high-quality media that offers improvements over standard OEM-branded filters.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix ready-to-use formula that protects cooling system metals and lasts up to 150,000 miles or 5 years.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula for superior corrosion protection and extended service intervals up to 150,000 miles.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Designed to withstand the rigors of heavy towing and elevated temperatures while maintaining fluidity in sub-zero conditions.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A cost-effective option that provides essential wear protection for the automatic transmission.
- AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube – Meets Ford specifications for the rear differential, offering protection against rust, corrosion, and thermal runaway.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – An alternative grade for limited-slip applications with advanced wear protection and thermal control.
- AMSOIL SEVERE GEAR® 75W-110 100% Synthetic Gear Lube – A heavier viscosity option designed for extreme loads and high-stress environments where additional film strength is required.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Ensures excellent ABS and traction-control responsiveness with a stable viscosity across a wide temperature range.
- AMSOIL P.i.® Performance Improver Gasoline Additive – Restores up to 14% horsepower and cleans GDI fuel injectors to improve fuel economy and prevent pre-ignition knock.
Engine Oil and Filter Requirements
The 2016 Ford Fusion equipped with the 1.5-liter EcoBoost engine requires a 5W-20 viscosity grade for optimal performance across all temperatures. The engine oil capacity, including the filter replacement, is 4.3 quarts. Proper lubrication is critical for this turbocharged engine, as the turbocharger spins at incredibly high speeds and generates significant heat. Standard synthetic oils can break down under these conditions, leading to carbon buildup on the turbo vanes and accelerated wear in the valvetrain and bearings.
For those seeking the maximum level of protection, the AMSOIL Signature Series 5W-20 is the top recommendation. This oil provides up to 75% more engine protection against horsepower loss and wear compared to industry standards. It features a high-shear stability formula that maintains its protective film even under the extreme stress of a turbocharged engine. Owners can extend their change intervals to 25,000 miles or one year, whichever comes first, without compromising engine cleanliness or longevity. This is particularly beneficial for drivers who engage in stop-and-go commuting or occasional highway hauling where the engine may not always reach optimal operating temperature, creating a risk of sludge accumulation.
If maximum protection is not the primary concern, the AMSOIL Extended-Life 5W-20 offers a robust alternative with guaranteed protection for up to 20,000 miles. This formula includes enhanced cleaning power, which helps keep the engine running smoother for a longer duration. For owners who prefer a budget-friendly option that still outperforms conventional oils, the AMSOIL OE 5W-20 is an excellent choice. It is formulated to fight sludge and deposits effectively, ensuring the engine meets or exceeds OEM maintenance schedules. For older Fusions with over 75,000 miles on the odometer, the AMSOIL 5W-20 High-Mileage Motor Oil provides unique chemistry with boosted detergents and dispersants to help rejuvenate seals and reduce oil consumption.
Selecting the right filter is just as important as choosing the oil. The AMSOIL Oil Filter is engineered to provide extended service life, maintaining filtration efficiency at 20 microns for up to 25,000 miles. It allows for lower oil restriction, which keeps engine parts lubricated and reduces the risk of bypassing the filter during cold starts. The filter media also has greater capacity for small, wear-causing contaminants compared to many competitors. For those who prefer the reliability of a branded filter, the WIX Oil Filter (Part #51348) offers premium media and high-quality construction that meets the requirements for this vehicle.
Transmission, Differential, and Cooling Systems
While the engine receives significant attention, other vital systems require regular maintenance to ensure the vehicle’s longevity. The 2016 Ford Fusion 1.5L is paired with a 6F35 6-speed automatic transmission. Maintaining this transmission with a high-quality synthetic fluid can prevent the slippage, harsh shifts, and eventual failure that can result from degraded factory fill. The AMSOIL Signature Series Fuel-Efficient Automatic Transmission Fluid is designed to withstand the rigors of heavy towing, elevated temperatures, and challenging terrain. It remains fluid in sub-zero temperatures, ensuring smooth shifting even in harsh winters. For those looking for a reliable OE-level fluid, the AMSOIL OE Fuel-Efficient Automatic Transmission Fluid provides excellent wear protection and is a cost-effective solution for regular maintenance.
For the rear differential, the vehicle utilizes a limited-slip differential requiring AMSOIL SEVERE GEAR 80W-90 Gear Lube that meets specific Ford specifications. The AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube is a primary recommendation for this application. It contains friction modifiers essential for limited-slip differentials to prevent chatter and wear while providing advanced protection against rust, corrosion, and thermal runaway. Other viscosity options like the AMSOIL SEVERE GEAR® 75W-90 and 75W-110 are available for specific driving conditions or limited-slip requirements, offering long oil, seal, and equipment life.
Cooling system maintenance is crucial, especially for a turbocharged engine that generates more heat than naturally aspirated counterparts. The cooling system capacity for the 2016 Ford Fusion 1.5L is 11.1 quarts. Owners can choose between the AMSOIL Passenger Car & Light Truck Antifreeze & Coolant, which comes pre-mixed as a 50/50 solution ready for immediate use, or the concentrated AMSOIL Propylene Glycol Antifreeze and Engine Coolant for those who prefer to mix their own. Both formulations offer protection up to 150,000 miles or five years and are phosphate-, nitrate-, and silicate-free to prevent corrosion of aluminum components common in modern cooling systems.
AMSOIL DOT 3 and DOT 4 Brake Fluid and Fuel System Health
Brake fluid absorbs moisture over time, which lowers its boiling point and can lead to brake fade or ABS system malfunctions. The 2016 Ford Fusion requires a DOT 3 or DOT 4 fluid. The AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an ideal upgrade, providing a stable viscosity over a wide temperature range and excellent responsiveness for ABS and traction-control systems. It helps maintain consistent braking performance even after heavy use, ensuring driver safety.
To maintain peak performance and fuel economy, the fuel system should remain clean. Direct Injection (GDI) engines are prone to carbon buildup on intake valves and fuel injectors, which can degrade power and efficiency. The AMSOIL P.i.® Performance Improver Gasoline Additive is a powerful tool for preventing and remedying this issue. It restores up to 14% horsepower and cleans fuel injectors back to 100% flow rate in just one tank of fuel. This additive also helps control pre-ignition knock and reduces the need for higher-octane fuel, making it a valuable investment for keeping the EcoBoost engine running at its best.
About the 2016 Ford Fusion
The 2016 Ford Fusion represents a pivotal moment in the mid-size sedan market, showcasing Ford’s commitment to modern efficiency without compromising on driving dynamics. Based on the Ford CD4 platform, which it shares with the Lincoln MKZ, this generation of the Fusion was designed to be lighter, more aerodynamic, and more spacious than its predecessors. The introduction of the 1.5-liter EcoBoost engine in various trims gave owners access to turbocharged performance in a fuel-efficient package, making it a favorite for daily commuters and families alike.
Owners of this vehicle often praise its balanced handling, which feels more agile than many competitors in its class. The interior is known for its user-friendly interface, particularly the SYNC infotainment system, which integrates well with smartphones for navigation and media control. The Fusion’s reputation for reliability and comfort has made it a staple on rental fleets and a popular choice for ride-sharing services. Its sleek, modern design earned it numerous “best of” awards during its production run, cementing its status as a class leader in the American sedan segment.
Whether driven on long highway commutes or through tight city streets, the 2016 Fusion delivers a composed ride. The turbocharged engines provide responsive acceleration, allowing for easy merging and passing. The vehicle’s safety features, including available lane-keeping assist and adaptive cruise control, further enhance its appeal as a practical and safe family sedan. By adhering to a rigorous maintenance schedule using high-quality synthetic lubricants, owners can ensure their Fusion continues to provide reliable service and a comfortable driving experience for years to come.