Infiniti FX37 Tires — Fitment by Year

The 2013 Infiniti FX37 is a performance-oriented luxury crossover SUV that blends sport-tuned handling with upscale comfort. When shopping for tires on this vehicle, it's important to match that character — tires need to support confident cornering, a refined ride, and the relatively low-profile fitment typical of performance luxury crossovers. The FX37's sporting DNA means tire selection has a direct impact on how the vehicle feels and handles, not just how it wears.

The 2013 FX37 was offered in configurations using large-diameter wheels, and the stock tire sizes reflect that — expect fitments in the range of 265/50R20 or similar depending on trim level. Because this model year offered different wheel and trim configurations, verifying your exact tire size from the door jamb placard or owner's manual before ordering is essential. Running the correct size ensures accurate speedometer readings, proper clearance, and that the vehicle's stability and traction control systems function as intended.

For tire category, most FX37 owners will find all-season tires to be the most practical choice. A quality all-season in the correct size handles dry performance, light wet traction, and moderate cold-weather driving reasonably well. However, if you live in a region with significant snowfall or sustained below-freezing temperatures, a dedicated winter tire set on a separate wheel set is worth considering. Winter tires provide substantially better grip in those conditions than any all-season, and the FX37's performance-tuned suspension benefits from purpose-matched rubber in challenging conditions.

Because the FX37 is a performance crossover with a firm suspension calibration, sidewall height matters more than it might on a truck or body-on-frame SUV. Lower-profile tires — common on this platform — offer less sidewall flex, which sharpens steering response but can make the ride feel harsher on rough roads. If ride comfort is a priority, staying within the OEM size range rather than stretching to an even lower profile is advisable. Conversely, avoid "plus-sizing" beyond what the wheel well can safely accommodate without risking rubbing on turns or over bumps.

Load rating and speed rating are also worth attention. The FX37 carries a substantial curb weight, so matching or exceeding the OEM load index is non-negotiable for safety. The original equipment on performance luxury crossovers of this type typically carries an H (130 mph) or V (149 mph) speed rating, and staying at or above those ratings keeps you aligned with the vehicle's performance envelope. Downgrading to a lower speed rating, even on a vehicle primarily used for daily commuting, is generally not recommended on a sport-tuned platform like this.

Always verify your exact tire size, load index, and speed rating from your door jamb sticker or owner's documentation before finalizing any purchase. Trim-level differences in the 2013 FX37 lineup can mean variations in fitment, and the correct tire for one configuration may not be correct for another. When in doubt, cross-reference against your vehicle's specific placard rather than relying on general model-year data alone.