Engine and Performance
The 2004-2010 Infiniti QX56/QX80 (JA60) is powered by a 5.6-liter V8 engine that produces 320 horsepower at 5,600 rpm and 390 lb-ft of torque at 4,000 rpm. The engine features a Sequential Multiport Fuel Injection system and a variable valve timing system to optimize power and efficiency.
Transmission and Drivetrain
The QX56/QX80 is equipped with a five-speed automatic transmission with an adaptive kickdown feature that adjusts the transmission's shift points based on driving conditions. The vehicle features an all-wheel-drive (AWD) system that can send up to 100% of the power to any one wheel, providing improved traction and stability.
Interior and Features
The interior of the QX56/QX80 is designed to provide comfort and luxury for its occupants. The cabin features premium leather-trimmed seats with ventilation and massage functions in the front and rear seats. Other standard features include a Bose audio system with 13 speakers, a navigation system with a 7-inch touchscreen display, and a rearview camera.
Safety Features
The QX56/QX80 features a comprehensive suite of safety features, including dual-stage frontal airbags and side curtain airbags for all occupants. The vehicle also includes a traction control system (TCS) to help prevent wheelspin and skidding, as well as an electronic stability control (ESC) system to help stabilize the vehicle.
Exterior Design and Dimensions
The QX56/QX80 has a spacious interior with plenty of room for passengers and cargo. The exterior dimensions of the vehicle include a length of 198.4 inches, a width of 77.6 inches, and a height of 71.1 inches. The wheelbase measures 114 inches.
Fuel Economy and Towing Capacity
The QX56/QX80 has an estimated EPA rating of 14 mpg in the city and 20 mpg on the highway. The vehicle's towing capacity is up to 8,500 pounds with a properly equipped trailer.
Trim Levels and Options
The QX56/QX80 was available in several trim levels, including the base model, a Limited Edition package, and an Ultimate Package that added features such as a moonroof, 20-inch wheels, and a premium audio system. Other options included a rear-seat entertainment system and a power liftgate.
Recalls and Issues
The QX56/QX80 was subject to several recalls during its production run, including one for a software issue with the vehicle's traction control system and another for a problem with the fuel pump electrical connector.
Reliability and Maintenance
The QX56/QX80 has a generally good reliability record, but some owners have reported issues with the transmission and engine. Regular maintenance is recommended to ensure the longevity of the vehicle's components.
