Maintaining the optimal performance of your 2016 Infiniti Q70 with the 3.7L VQ37VHR B engine begins with selecting the correct lubricants and fluids. This vehicle, designed with a powerful naturally aspirated V6, relies heavily on high-quality synthetic fluids to manage the heat and friction generated during operation. Using the right AMSOIL Signature Series, Extended-Life, or OE motor oils ensures that the engine, AMSOIL Oil Filter, transmission, and differentials operate smoothly, reducing wear and extending the service intervals between maintenance checks. Whether you are driving in extreme temperatures or performing heavy towing, the specific fluid requirements for this Q70 model demand precise attention to viscosity, capacity, and formulation.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil (ASLQT-EA) – The top-tier choice offering up to 25,000 miles of protection, ideal for maximizing horsepower retention and reducing wear.
- AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil (XLFQT-EA) – Provides a robust balance of cleaning power and extended protection for up to 20,000 miles.
- AMSOIL OE 5W-30 100% Synthetic Motor Oil (OEFQT-EA) – An excellent value option that outperforms conventional oils while offering OEM mileage protection.
- AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil (HM530QT-EA) – Specifically formulated for engines with over 75,000 miles to help reduce oil consumption and sludge.
- AMSOIL Oil Filter (EA15K12-EA) – Engineered to provide 99% filtration efficiency at 20 microns, ensuring contaminants are removed to protect engine longevity.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant (ANTPC1G-EA) – A ready-to-use 50/50 pre-mix that protects against corrosion and offers up to 150,000 miles of cooling system life.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant (ANT1G-EA) – A concentrated formula requiring mixing with water, designed for extreme protection in harsh conditions.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid (ATLPK-EA) – Optimized for the RE7R01A transmission, handling heavy towing and elevated temperatures while maintaining fuel efficiency.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid (OTLQT-EA) – Delivers reliable protection against wear and sludge for standard driving conditions.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid (ATFPK-EA) – A versatile option for transfer cases and other applications requiring synthetic fluid performance.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid (OTFQT-EA) – Ensures smooth, shudder-free shifts and excellent cold-weather performance.
- AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube (AGLPK-EA) – Ideal for the front differential, providing advanced protection and thermal control for limited-slip applications.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube (SVGPK-EA) – A premium choice for rear differentials, offering superior resistance to rust, corrosion, and extreme pressure.
- AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube (FGRQT-EA) – Engineered for extended service intervals, protecting gears and bearings for up to 500,000 miles.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid (BFLVCN-EA) – A high-performance hydraulic fluid that ensures stable viscosity and excellent ABS responsiveness.
- AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid (PSFCN-EA) – Keeps seals soft to prevent leaks and provides strong anti-wear protection for quiet operation.
The engine of your 2016 Infiniti Q70 is a robust 3.7-liter V6, known for its reliability and smooth power delivery. However, like any internal combustion engine, it is susceptible to breakdown if subjected to harsh conditions or neglected maintenance. The 5.2-quart capacity (including filter) is a critical specification to remember when servicing this vehicle. Using a fluid that meets the correct viscosity and specification standards is paramount for maintaining the engine’s timing and reducing friction. AMSOIL Signature Series, Extended-Life, and OE motor oils are designed to withstand the rigors of daily driving, from stop-and-go traffic to highway cruising, while also providing superior protection during cold starts where most engine wear occurs.
Transmission health is equally critical for the Q70, especially given its 7-speed automatic transmission (RE7R01A). The fluid in this unit operates under significant heat and stress. A full fill requires approximately 9.7 quarts. Failure to replace this fluid with a high-quality synthetic alternative like the Signature Series Fuel-Efficient or OE Fuel-Efficient Automatic Transmission Fluid can lead to shuddering, slipping, or costly repairs down the road. These AMSOIL transmission fluids are formulated to remain stable under extreme loads, ensuring that your gear shifts remain crisp and efficient for a longer period than conventional fluids.
Moving to the rear of the drivetrain, the differential systems require specialized lubrication. The front differential holds 1.4 pints, while the rear unit requires 3 pints. These components operate in a demanding environment, subject to shear forces and high temperatures. The use of synthetic gear lubes like AMSOIL SEVERE GEAR 80W-90 or SEVERE GEAR 75W-90 helps control thermal runaway and protects against rust and corrosion. Proper lubrication here ensures that the limited-slip mechanisms, if equipped, function correctly, providing traction and stability in adverse weather conditions.
Brake systems and steering components also play a vital role in the safety and handling of this vehicle. The brake system utilizes DOT 3 hydraulic fluid, which can degrade over time as it absorbs moisture, lowering its boiling point. Replacing this with a synthetic formulation like AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid improves brake responsiveness and prevents vapor lock during heavy braking. Similarly, the power steering system benefits from a fluid that resists heat and keeps seals pliable, preventing the squeaks and leaks that often plague aging steering systems.
Vehicle Background
The 2016 Infiniti Q70 represents a significant era in the brand’s history, bridging the gap between traditional luxury sedans and modern sporty performance. Built on the same platform as the Nissan GT-R and F-SPORT models, the Q70 was designed to offer a compelling alternative to established European luxury competitors. The 3.7L VQ37VHR engine is a direct descendant of the legendary VQ series, renowned for its high-revving nature and linear power delivery. This specific engine code, VQ37VHR, indicates a naturally aspirated V6 that produces substantial horsepower and torque without relying on forced induction.
Owners of the Q70 often appreciate its sophisticated interior, which includes premium leather, advanced infotainment systems for its time, and a quiet, refined cabin environment. The vehicle was positioned in the upper mid-size luxury sedan segment, competing for drivers who sought a blend of comfort and dynamic driving capabilities. The Q70’s rear-wheel-drive architecture, available in various trims including the Q70L for extended wheelbase and the sporty Q70 LUXE, allowed for a more engaging driving experience compared to front-wheel-drive counterparts. The 2016 model year continued Infiniti’s commitment to integrating intelligent technologies with robust mechanicals, making it a favorite among enthusiasts who value a traditional driving feel. The platform’s origins in the broader Nissan-GM alliance also speak to the shared engineering excellence that defines the VQ engine family.
Maintaining this vehicle with the right fluids is not just about meeting a schedule; it is about preserving the character of the car. The VQ engine is sensitive to oil quality, and the transmission is particularly demanding under load. By utilizing AMSOIL Signature Series, AMSOIL Extended-Life, and AMSOIL OE motor oils, owners can ensure that the Q70 continues to perform with the precision and reliability it was designed for. Whether you are looking to extend the life of an older vehicle or simply want the best possible protection for a newer one, the specific requirements of the Q70 3.7L model are best met with high-performance synthetic fluids.
It is also worth noting the importance of seasonal care and storage. If your Q70 sees less frequent use, using an AMSOIL Engine Fogging Oil or AMSOIL Gasoline Stabilizer can prevent internal corrosion and fuel degradation. These smaller maintenance steps contribute significantly to the overall longevity of the vehicle. By taking a holistic approach to maintenance—covering engine, transmission, drivetrain, and fluid systems—owners can maximize the utility and value of their Infiniti Q70 for years to come. The combination of proper fluid selection and adherence to service intervals creates a solid foundation for reliable performance.
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