The 2018 Infiniti Q50 tire size depends on trim: the Hybrid Luxe, RWD takes 245/40RF19 94W; the Luxe, 2.0L Eng VIN C, AWD takes P225/50R18 94V; the Hybrid Luxe, AWD takes P245/40RF19 94V; the Luxe, 3.0L Eng VIN E, AWD takes P225/50R18 94V; the Luxe, 2.0L Eng VIN C, RWD takes P225/50R18 94V; the Pure, RWD takes P225/55RF17 95V; the Pure, AWD takes P225/55RF17 95V; the Luxe, 3.0L Eng VIN E, RWD takes P225/50R18 94V; the Red Sport 400, RWD takes 245/40RF19 94W; the Sport, AWD takes P245/40RF19 94V; the Red Sport 400, AWD takes P245/40RF19 94V; the Sport, RWD takes 245/40RF19 94W, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
Hybrid Luxe, RWD: 245/40RF19 94W
Luxe, 2.0L Eng VIN C, AWD: P225/50R18 94V
Hybrid Luxe, AWD: P245/40RF19 94V
Luxe, 3.0L Eng VIN E, AWD: P225/50R18 94V
Luxe, 2.0L Eng VIN C, RWD: P225/50R18 94V
Pure, RWD: P225/55RF17 95V
Pure, AWD: P225/55RF17 95V
Luxe, 3.0L Eng VIN E, RWD: P225/50R18 94V
Red Sport 400, RWD: 245/40RF19 94W
Sport, AWD: P245/40RF19 94V
Red Sport 400, AWD: P245/40RF19 94V
Sport, RWD: 245/40RF19 94W
Hybrid Luxe, RWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
245/40RF19 94W
Door Placard
—
—
Luxe, 2.0L Eng VIN C, AWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P225/50R18 94V
Door Placard
—
—
Hybrid Luxe, AWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P245/40RF19 94V
Door Placard
—
—
Luxe, 3.0L Eng VIN E, AWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P225/50R18 94V
Door Placard
—
—
Luxe, 2.0L Eng VIN C, RWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P225/50R18 94V
Door Placard
—
—
Pure, RWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P225/55RF17 95V
Door Placard
—
—
Pure, AWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P225/55RF17 95V
Door Placard
—
—
Luxe, 3.0L Eng VIN E, RWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P225/50R18 94V
Door Placard
—
—
Red Sport 400, RWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
245/40RF19 94W
Door Placard
—
—
All
265/35RF19 94W
Door Placard
—
—
Sport, AWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P245/40RF19 94V
Door Placard
—
—
Red Sport 400, AWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
P245/40RF19 94V
Door Placard
—
—
Sport, RWD
Tire Specifications
Position
Tire Size
Pressure
Load Index
Speed Rating
All
245/40RF19 94W
Door Placard
—
—
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