Understanding the correct 2017 Ford F-150 XLT tire size is essential for owners who prioritize safety, performance, and fuel efficiency. The tires on this best-selling truck act as the primary interface between the powerful engine and the road surface, influencing everything from traction in adverse weather to the smoothness of the ride. Choosing the right diameter and width ensures that the vehicle's speedometer remains accurate and that the suspension components operate within their designed tolerances.
Factory Specifications for the 2017 Model Year
When rolling off the assembly line, the 2017 Ford F-150 XLT was equipped with specific tire dimensions that matched its intended use case. The standard fitment for most configurations was designed to balance capability with daily drivability. Owners should refer to the placard located on the driver-side door jamb for the exact pressure and size mandated by Ford for their specific vehicle identification number (VIN).
Common OEM Sizes
The 2017 F-150 XLT often shipped with either 17-inch or 18-inch wheels, depending on the trim level and package selected. The most frequently observed factory tire size for the base XLT model was P275/65R18. This designation indicates a tire with a section width of 275 millimeters, an aspect ratio of 65 percent, and a rim diameter of 18 inches. This size provided a sturdy footprint for hauling and towing while maintaining a relatively comfortable ride quality for passengers.
Performance and Handling Implications
The diameter of the tire plays a critical role in the vehicle's dynamics. A larger diameter increases the truck's ground clearance, which is beneficial for off-road adventures but can negatively impact fuel economy due to the increased rotational mass. Conversely, a smaller diameter may improve responsiveness and reduce wear on the driveline. The 2017 XLT's suspension tuning was specifically matched to its tire size to ensure stability during high-speed highway travel and adequate articulation over uneven terrain.
Aftermarket Considerations and Upgrading
Many enthusiasts eventually look to modify their 2017 Ford F-150 XLT with larger tires for a more aggressive stance or improved off-road capability. When doing so, it is vital to maintain the overall tire diameter within a few percent of the factory specification. This practice, known as maintaining the rolling circumference, prevents errors in the vehicle's traction control and stability systems. Lifting the truck is a common modification that allows for the installation of wider rims and taller tires, but it requires careful consideration of wheel backspacing and potential interference with the fender liners.
Load Ratings and Tire Pressure
Given that the F-150 is often tasked with towing trailers or carrying heavy payloads, the tire's load index is a crucial specification. The standard tires for the XLT typically feature a load index that supports the gross vehicle weight rating (GVWR) of the truck. Maintaining the correct tire pressure is non-negotiable; under-inflation leads to excessive heat buildup and reduced fuel efficiency, while over-inflation results in a harsh ride and uneven center tread wear. Owners should check pressures at least once a month, as cold tire pressure recommendations can vary based on the weight of the cargo.
