Infiniti QX80 5.6 V8 (2016): Quick Operation and Maintenance Reference

Part numbers are from the manufacturer's original catalogue. Check them against your VIN before ordering.

1. Fuel. Use only gasoline with a minimum octane rating of 95 RON (listed as 91 AKI in the US). The tank holds about 98 L (26 gal). Low-octane fuel can cause knocking and loss of power, and the engine control system will retard the ignition timing to compensate.
2. Engine oil. Use 5W-30 with API SN or newer approval. The fill capacity with the filter is about 6-7 L (6.3-7.4 qt). Check the exact level on the dipstick between the marks. The change interval for mixed driving is 10,000 km or 12 months. For city traffic, stop-and-go driving and towing, it is better to change it every 7,000-8,000 km. The drain plug tightening torque is approximately 30-40 N·m (22-30 lb-ft).
3. Starting and warm-up. Start the engine with the Start/Stop button while pressing the brake pedal. The smart key must be inside the cabin. If the key battery is dead, hold the key against the start button (the immobilizer antenna is located there). Do not load the engine at high rpm until the coolant has reached operating temperature.
4. Drive modes. The vehicle has all-wheel drive, and the modes are selected with the switch on the center console or tunnel. Use the 4H position on snow, mud and ice. Use the 4LO position (low range) only at very low speed, when climbing steep grades or driving through deep mud and sand. Do not drive in 4H or 4LO on dry pavement, as this puts stress on the drivetrain (driveline binding).
5. Automatic transmission. The 7-speed automatic has a manual mode (paddle shifters and M mode). Under normal conditions, the fluid is changed per the service schedule at roughly every 60,000-90,000 km, and more often when towing and under severe conditions. Do not shift into N while driving, and do not tow the vehicle with the drive wheels on the ground without first checking the towing guidelines.
6. Tires and pressure. The pressure is listed on the placard on the driver's door pillar. Check it on cold tires once a month, including the spare. The TPMS warns you about pressure loss. Wheels are 20 or 22 inches, depending on trim. The wheel nut tightening torque is about 108-132 N·m (80-97 lb-ft). Tighten them in a crisscross pattern with a torque wrench.
7. Towing. The maximum trailer weight is about 3,800 kg (depending on the market and trim), and the tongue weight must not exceed 10% of the trailer weight. If you tow regularly, shorten the change intervals for engine oil, transmission fluid and transfer case fluid.
8. Fuse boxes. One is in the engine compartment (relays and high-current fuses), and the other is under the instrument panel on the driver's left. The diagram is printed on the inside of the cover or given in the owner's manual. Replace a fuse only with one of the same rating.
9. OBD-II diagnostic port. It is located under the instrument panel, to the left of the steering column. Use it to read fault codes when the Check Engine light comes on.
10. Coolant and brake fluid. The coolant is a long-life ethylene glycol type, with the color specified by Nissan/Infiniti, and is replaced per the schedule (roughly the first replacement at about 150,000 km or 10 years, then less often). Change DOT 3 or DOT 4 brake fluid every 2 years. Check the levels against the MIN/MAX marks on the reservoirs.
11. Scheduled maintenance. Approximate schedule: oil and filter change every 10,000 km; inspection of brakes, tires, suspension and boots at every maintenance visit; engine air filter about every 30,000-40,000 km; cabin air filter once a year; spark plugs at about 100,000 km; accessory drive belt inspection at every maintenance visit. The timing drive is a chain and does not need regular replacement, but it depends on good-quality oil changed on time.
12. Electronics and driver assistance. The vehicle may have adaptive cruise control, blind spot warning, lane departure warning, an around-view camera and the Vehicle Dynamic Control (VDC) stability system. Keep the sensors and cameras clean, and do not cover them with film or paint over them.
13. Battery. The vehicle has many loads that draw power in standby mode. If it will sit for more than 2-3 weeks, disconnect the negative battery terminal or connect a battery maintainer. After disconnecting, you may lose saved settings, and the power windows will need to be reinitialized.
14. Suspension. The vehicle may be equipped with the Hydraulic Body Motion Control system, which reduces body roll. If you see a fluid leak, hear unusual noises or get error messages on the instrument cluster, take the vehicle to a repair shop.

• All values (capacities, torques, intervals) are approximate and depend on the market and trim, so check the labels on the vehicle and the manufacturer's maintenance schedule when servicing it
• Work on the brake system, steering, Hydraulic Body Motion Control suspension and airbags should be done only if you have experience
• Otherwise, take the vehicle to a repair shop