Maintaining the 2016 Infiniti Q70 with its robust 3.5L VQ35HR V6 engine requires premium lubrication to ensure longevity and performance. This vehicle, known for its balance of luxury and power, benefits significantly from high-quality synthetic fluids that can withstand the stresses of daily driving, extreme temperatures, and long-term wear. Using the correct AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil and filters helps maintain optimal viscosity, reduces sludge buildup, and protects critical components like turbochargers and high-stress bearings. Whether you are a commuter or a weekend enthusiast, choosing the right products ensures your Q70 remains a reliable and smooth-running sedan for years to come.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil – Offers unsurpassed engine protection and can last up to 25,000 miles between changes.
- AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil – Provides up to 20,000 miles of protection with enhanced cleaning power.
- AMSOIL Oil Filter – Features 99% filtration efficiency at 20 microns to keep contaminants out of your engine.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – Engineered to exceed OEM requirements and protects cooling system metals.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands heavy towing and elevated temperatures for the 7-speed transmission.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Essential for the rear differential to control thermal runaway and reduce operating temperatures.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Provides stable viscosity and excellent responsiveness for ABS systems.
- AMSOIL P.i.® Performance Improver Gasoline Additive – Restores fuel injectors and horsepower while improving fuel economy.
Engine Oil and Filter Specifications
The heart of the 2016 Infiniti Q70 is the 3.5L V6 engine (Code VQ35HR A). This powerplant is designed for performance but demands precise lubrication to maintain its high-revving capabilities and smooth operation. For this engine, a viscosity grade of 5W-30 is recommended for all temperature conditions. The system requires 5.2 quarts of oil when the filter is replaced. It is important to note the torque specification for the oil drain plug, which is 25 ft-lbs. After refilling, always check the oil level to ensure the correct quantity has been added.
When selecting an oil, the AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil stands out as the top choice. It offers 75% more engine protection against horsepower loss and wear compared to standard oils. This oil provides guaranteed protection for up to 25,000 miles or one year, whichever comes first. For those looking for a slightly longer interval without the full premium price, the AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil is an excellent alternative. It delivers up to 20,000 miles of protection and features enhanced cleaning power to keep the engine running smoother for longer. For vehicles that have logged over 75,000 miles, the AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil is ideal, as it reduces sludge by 67% and helps extend the life of the engine.
Matching the oil with a high-quality filter is equally critical. The AMSOIL Oil Filter allows for lower restriction, keeping engine parts well-lubricated and providing greater capacity for small, wear-causing contaminants. It offers extended service life and helps reduce engine wear significantly. Alternatively, for those who prefer an OEM-style filter, the WIX Oil Filter is also a recommended option that offers premium media improvements over standard OEM-branded filters.
Transmission and Differential Fluids
The transmission in the 2016 Q70 is a 7-speed automatic (RE7R01H). Maintaining this transmission is vital for smooth shifts and longevity. The total fill capacity for the automatic transmission is 7.4 quarts. For this application, the AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is the premier choice. It is designed to withstand the rigors of heavy towing, elevated temperatures, and challenging terrain, while remaining fluid even in sub-zero temperatures. It provides a reserve of protection during heavy use and abuse. Another viable option is the AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid.
If your vehicle is equipped with a rear differential requiring GL-5 lubricant, synthetic oil is mandatory. The AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube is perfectly suited for this. It contains friction modifiers for limited-slip applications and helps control thermal runaway, protecting against rust and corrosion. This fluid helps reduce operating temperatures and extends the life of the oil, seals, and equipment. Another viable option for gear lubrication is the AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube, which is specifically engineered for long service intervals and provides high-load protection. For heavier loads, the AMSOIL SEVERE GEAR® 75W-110 100% Synthetic Gear Lube is also available.
Cooling, Braking, and Additional Maintenance
A healthy cooling system is essential to prevent overheating, especially in the VQ35HR engine which can generate significant heat. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant capacity for the engine is 9.1 quarts, while the inverter requires 2.7 quarts. It features a unique poly-organic acid (OAT) chemistry that is free of phosphates, nitrates, and borates, ensuring compatibility with all antifreeze colors. For those who prefer a concentrated coolant, the AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers superior protection up to 150,000 miles or 5 years.
Brake fluid is another critical fluid that should not be overlooked. The 2016 Infiniti Q70 requires a DOT 3 hydraulic brake fluid. The AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent choice. It provides excellent responsiveness for ABS and traction control systems and maintains a stable viscosity over a wide temperature range, ensuring reliable braking performance in all weather conditions.
To maximize the efficiency of your fuel system, consider using the AMSOIL P.i.® Performance Improver Gasoline Additive. This product helps restore up to 14% horsepower and can restore GDI fuel injectors to 100% flow rate after a single tank of fuel. It also improves fuel economy and reduces the need for higher-octane fuel, helping prevent carbon buildup and pre-ignition knock. Additionally, the AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor can help lubricate the fuel system and upper cylinders.
Vehicle Background
The 2016 Infiniti Q70 represents the pinnacle of Infiniti’s mid-size luxury sedan lineup during that era. Built on the premium D platform, the Q70 is renowned for its blend of sophisticated design, comfortable interior, and engaging driving dynamics. It serves as the brand’s direct competitor to established European luxury sedans like the Mercedes-Benz E-Class and BMW 5 Series. The vehicle is celebrated for its ride quality and the refined nature of its cabin, which typically features high-quality materials and advanced technology for its time.
Under the hood, the 3.5L VQ35HR engine is a standout feature. This naturally aspirated V6 is part of Infiniti’s legendary VQ engine family, known for its smooth power delivery and reliability. The “HR” designation indicates improvements in horsepower and torque over previous iterations, offering strong acceleration without the need for a turbocharger. This engine is often praised by enthusiasts for its ability to rev freely and provide a linear power curve. The chassis tuning allows for a balance between a comfortable ride and competent handling, making it suitable for both daily commuting and spirited weekend driving. Whether navigating city traffic or cruising on the highway, the Q70 delivers a premium experience that emphasizes performance and luxury equally.
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