2018 INFINITI QX80 Base Max Towing Capacity & Payload
Max Towing Capacity
8,500 lbs
Safe limit: 6,800 lbs (80% rule)
Max Payload
1,656 lbs
Often the real limiting factor
Fuel Economy
15.0 mpg
14 city / 20 hwy (EPA Est.)
The 2018 INFINITI QX80 Base is rated to tow up to 8,500 lbs powered by the 5.6L. For real-world towing, the practical limit is 6,800 lbs — that's 80% of max, giving you margin for hills, headwinds, and load variation. The payload rating of 1,656 lbs is the number to watch closely — once you add passengers, hitch weight, and gear, it fills faster than most people expect. With this setup, you're looking at most travel trailers and slide-in campers.
Recommended Equipment
Towing Gear for This Truck
Matched to this trim's Class III hitch class and 8,500 lb tow rating
Class III Hitch Receiver
Required for towing. 2" receiver is standard on tow-equipped models.
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Trailer Wiring Adapter
7-pin to 4-pin adapters for trailer brake lights and signals.
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Brake Controller
Required by law in most states for trailers over 3,000 lbs.
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Weight Distribution Hitch
Strongly recommended for trailers over 6,000 lbs to level the load and reduce sway.
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Full Data
Specifications
Towing & Capacity
Engine & Performance
Dimensions
SpecificationValueShopLearn More
Towing
Payload & Weight
Curb Weight
5,644 lbs
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Engine
Engine
5.6L
Horsepower
400 HP @ 5800 rpm
Torque
413 lb-ft @ 4000 rpm
Transmission
7-speed shiftable automatic
Drive Type
Rear Wheel Drive
Fuel Type
Premium unleaded (recommended)
Fuel Tank
26.0 gallons
Fuel Economy (EPA)
City14 mpg
Highway20 mpg
Combined16 mpg
Real-World (Fuelly, 4 owners)15.0 mpg
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Dimensions
Overall Length208.9"
Overall Width79.9"
Height75.8"
What Can I Tow?
RV Class Compatibility
Based on a safe tow limit of 6,800 lbs and 1,656 lb payload. Shows what % of each RV class in our database you can tow.
RV Type
Weight Range
Coverage
Status
Travel Trailers
Bumper Pull
1,100 – 89,950 lbs
Limited
Toy Haulers
5th / Bumper
1,300 – 112,250 lbs
Limited
Fifth Wheels
5th Wheel
1,176 – 24,000 lbs
Limited
Destination Trailers
Bumper Pull
9,800 – 16,500 lbs
Out of Range
⚠ Vehicle capacity only — does not include passengers, gear, or tongue weight. Run the full calculator →
Compare Configurations
Other 2018 INFINITI QX80 Trims
| Configuration | Max Towing | MPG | |
|---|---|---|---|
| 2025 INFINITI QX80 Autograph 4WD | 8,500 lbs | 17.0 mpg | View → |
| 2025 INFINITI QX80 Luxe RWD | 8,500 lbs | 18.0 mpg | View → |
| 2025 INFINITI QX80 Luxe 4WD | 8,500 lbs | 17.0 mpg | View → |
| 2025 INFINITI QX80 Pure RWD | 8,500 lbs | 18.0 mpg | View → |
| 2025 INFINITI QX80 Pure 4WD | 8,500 lbs | 17.0 mpg | View → |
| 2025 INFINITI QX80 Sensory 4WD | 8,500 lbs | 17.0 mpg | View → |
| 2024 INFINITI QX80 Luxe RWD | 8,500 lbs | 16.0 mpg | View → |
| 2024 INFINITI QX80 Luxe 4WD | 8,500 lbs | 15.0 mpg | View → |
| 2024 INFINITI QX80 Premium Select 4WD | 8,500 lbs | 15.0 mpg | View → |
| 2024 INFINITI QX80 Premium Select RWD | 8,500 lbs | 16.0 mpg | View → |
Questions & Answers
Common Questions
How much can I actually tow with my 2018 INFINITI QX80 Base?
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The 2018 INFINITI QX80 Base is rated at 8,500 lbs maximum — but the real-world best practice is the 80% rule: target 6,800 lbs as your practical limit. This gives you margin for hills, headwinds, braking distance, and real-world load variance. More critically, check your payload first — the door sticker tells you your specific truck's limit, and payload may be your actual binding constraint.
What about payload — how much stuff can I put in the truck?
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You have 1,656 lbs of payload capacity — that's everything going IN the truck: passengers (~150 lbs each), camping gear, coolers, and critically the tongue weight from your trailer. For bumper pull trailers, tongue weight is typically 10–15% of the trailer's loaded weight. It fills up faster than most people expect, especially on longer trips.
What kind of hitch do I need?
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For the 2018 INFINITI QX80 Base, you need a Class III receiver hitch rated for 8,500 lbs. Don't skimp here — the hitch is the critical link between truck and trailer. For fifth wheel towing, you'll need a dedicated kingpin-style fifth wheel hitch mounted in the truck bed.
What types of RVs will work with my truck?
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With your 6,800 lb safe towing capacity, you're looking at most travel trailers and slide-in campers. The compatibility chart above shows what percentage of each RV class in our database you can handle. Use the Tow Calculator to check a specific RV including gear, water, and passengers.
What does GVWR mean and why should I care?
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GVWR is Gross Vehicle Weight Rating — the maximum your truck can weigh when fully loaded with people, gear, and fuel. Your truck's GVWR is 7,300 lbs. Exceed it and you're over-stressing brakes, suspension, and tires. This is different from towing capacity — it's about what the truck itself can carry.
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