2015 Subaru Tire Fitment Guide

2015 Subaru vehicles use 10 different tire sizes across six models. The BRZ uses 215/45R17, the Impreza uses 195/65R15, 205/55R16, or 205/50R17, the Legacy uses 225/55R17 or 225/50R18, the Outback uses 225/65R17 or 225/60R18, the WRX uses 235/45R17, and the WRX STI uses 245/40R18. Rim diameters across the range are 15, 16, 17, and 18 inches, and rim-width recommendations vary by size where published.

That spread means there is no one-size-fits-all answer for a 2015 Subaru. Start by identifying the exact model, then confirm whether the car or crossover is on its 15-, 16-, 17-, or 18-inch wheel package before comparing brands or sidewall styles. If the car has had wheels changed at some point, verify the actual wheel diameter and compare the tire size currently mounted before making a replacement decision.

On a 2015 Subaru, 215/45R17 is a metric radial tire size. The 215 is the nominal section width in millimeters, 45 is the aspect ratio, meaning the sidewall height is 45 percent of the section width, R indicates radial construction, and 17 is the wheel diameter in inches. In this Subaru range, that size applies to the BRZ.

That code matters because it ties both the tire's proportions and its wheel fitment together. A 215/45R17 will not interchange directly with a 16-inch or 18-inch Subaru application, and even among 17-inch Subaru tires, widths and profiles differ by model. If you own a BRZ, confirm that the wheel is still the original 17-inch diameter and compare the full size marking on the tire sidewall before choosing a replacement.

No, 2015 Subaru models do not use the same tire size. The year spans a compact sedan and hatchback family, a midsize sedan, a crossover wagon, a rear-drive sports coupe, and two performance sedans, so the tire sizing changes with the vehicle's role. Some models also have more than one size within the same nameplate, such as the Impreza, Legacy, and Outback.

That has a direct effect on tire selection. Knowing only that you have a 2015 Subaru is not enough; you need the model and, for several models, the wheel package as well. The safest approach is to match the sidewall size on the car now against the factory application for that model. That extra step avoids mixing BRZ, WRX, Legacy, and Outback sizes that may share a similar overall look but fit entirely different wheel diameters and use cases.

Most 2015 Subaru tire sizes here are offered as Blackwall radials, which is the most natural visual match for a modern Subaru. A few sizes add specialty sidewall treatments: 205/50R17 is available in both Blackwall and Wide Whitewall, 225/55R17 is available in Blackwall and Wide Whitewall, and 225/65R17 appears with an RBL sidewall. Those sidewall choices are tied to specific sizes rather than the full Subaru lineup.

For a factory-appearing 2015 Subaru, Blackwall is generally the appropriate direction. Whitewall options make more sense for a customized presentation than for an originality-minded late-model Subaru, while the RBL all-terrain style aligns more naturally with an Outback's utility image. Once the correct size is confirmed, sidewall style becomes more of a visual and theme decision than a fitment decision.

2015 Subaru tire sizes in this range are available from BFGoodrich, American Classic, Michelin, Nitto, and M&H Racemaster. BFGoodrich covers the broadest spread of Subaru sizes, while American Classic appears in 205/50R17, Michelin appears in 205/55R16, Nitto appears in 235/45R17 and 245/40R18, and M&H Racemaster appears in 245/40R18. Brand availability changes by size, not just by model.

The practical takeaway is to pick the size first and the brand second. A BRZ owner in 215/45R17 is choosing among BFGoodrich sport-oriented radials, while a WRX STI owner in 245/40R18 has a wider mix that includes street-focused and drag-oriented choices. If visual style matters as much as handling feel, check whether your size stays strictly Blackwall or also opens the door to whitewall or other specialty sidewall treatments.

For 2015 Subaru sizes where both appear, BFGoodrich g-Force Sport Comp 2 and BFGoodrich g-Force Phenom T/A often share the same wheel diameter and broad performance-oriented blackwall character, but their published details are not identical. In 205/50R17, for example, the Sport Comp 2 weighs 23 pounds while the Phenom T/A is 25.26 pounds, and the Phenom T/A carries a 1,433-pound load rating at 50 psi. In 225/55R17, the Sport Comp 2 shows 1,609 pounds at 51 psi while the Phenom T/A reaches 1,819 pounds at 50 psi.

Those differences matter when you want to compare tires more closely within the same Subaru size instead of just choosing by brand name alone. If your priorities include matching a certain load figure, comparing tire weight, or narrowing the choice between similarly positioned blackwall radials, it is worth reviewing the exact series within your size rather than assuming every sport-oriented radial in that dimension is effectively the same.

Rim width recommendations for 2015 Subaru tires vary by size. 215/45R17 fits 7.0 to 8.0 inches, 205/50R17 fits 5.5 to 7.5 inches where published, 205/55R16 fits 5.5 to 7.5 inches, 225/55R17 fits 6.0 to 8.0 inches with one wide-whitewall version spanning 6.0 to 9.0 inches, 225/50R18 fits 6.0 to 8.0 inches, 225/65R17 fits 6.0 to 8.0 inches, 235/45R17 fits 7.5 to 9.0 inches, and 245/40R18 ranges from 8.0 to 9.5 inches, with one drag radial built around an 8.5-inch wheel.

That range is one reason wheel verification matters before replacing tires on a modified Subaru. Two tires may share the same rim diameter yet call for different wheel widths, especially as you move from an Impreza or Legacy fitment into WRX and WRX STI territory. If the car is still on stock wheels, these ranges help confirm compatibility; if it is not, measure or verify the wheel width before final selection.

Most 2015 Subaru products in these sizes are modern radial tires intended for tubeless service, and one 205/55R16 Michelin marking explicitly includes TL for tubeless. No size in this group appears as an all tube-type Subaru fitment. At the same time, tube wording is not printed the same way across every product, so the exact service type should be confirmed on the sidewall and against the wheel being used.

For an original late-model Subaru wheel in sound condition, tubeless operation is the normal expectation. The place to be careful is with specialty wheels, older aftermarket wheels, or a car that has had previous modifications. If there is any doubt about bead-seat condition or valve-stem style, confirm the wheel's suitability before mounting. That keeps the decision tied to the actual wheel and tire combination rather than assuming every 2015 Subaru setup is identical.

Original 2015 Subaru wheels can only be used with the tire sizes that match their wheel diameter and appropriate width range. A 17-inch Subaru wheel can accept only the 17-inch sizes that suit that model and wheel width, while 15-, 16-, and 18-inch Subaru tires require their matching wheel diameters. The fact that several models use 17-inch tires does not make those tires interchangeable across BRZ, Impreza, Legacy, Outback, and WRX wheels without checking width and application.

That is especially important on used Subarus, where wheels may have been swapped between trims or between model lines. Before choosing a tire, confirm the wheel diameter stamped on the wheel or compare the full sidewall size already mounted. Then check the rim-width recommendation for the tire size you want to use. Matching diameter first and width second is the cleanest way to avoid fitment mistakes.

A 2015 Subaru should be stored on clean, properly inflated tires in a cool, dry space away from direct sunlight, electric motors, battery chargers, welders, and other ozone sources that accelerate rubber aging. Move the vehicle periodically if practical so the same section of tread does not carry the load for months at a time. Keeping the tires off damp soil or wet concrete for extended periods is also good practice for a low-use enthusiast car.

That matters even more on a Subaru that sees seasonal use, such as a BRZ, WRX, or a second-car Outback. If the vehicle will sit for a long period, clean the tires first and consider using stands or tire cradles if storage conditions allow. Proper storage will not stop aging, but it can slow the cosmetic cracking, pressure loss, and deformation that often show up first on collector-driven cars with low annual mileage.

Tires on a 2015 Subaru should be judged by age as much as by tread depth. A sensible rule for enthusiast and low-mileage use is to begin evaluating condition closely once tires are about five to seven years old and to treat around 10 years from the DOT date code as a point where replacement deserves serious consideration, even if the tread still looks usable. Heat cycles, sunlight, storage conditions, and inflation history all matter.

That guideline is especially important on cars that are driven sparingly, because a Subaru can age out its tires long before it wears them out. Look for sidewall cracking, hardening, irregular wear, or repeated air loss rather than relying on mileage alone. If a recently purchased 2015 Subaru still has older tires with good tread, checking the date code is one of the smartest first steps before any spirited or long-distance driving.

Tires on a 2015 Subaru should be inspected before every drive and more carefully before any long highway run or seasonal road trip. Check inflation pressure, visible tread wear, cuts, punctures, bulges, and sidewall cracking, and compare all four tires for even wear patterns. Any Subaru that has been sitting should also be checked for flat spotting or pressure loss before it goes back into regular use.

That quick routine can catch most problems before they become expensive or unsafe. Performance-oriented cars like the WRX, WRX STI, and BRZ reward close attention because alignment, tire pressure, and wear pattern all affect how the car feels on the road. On family-use models such as the Legacy and Outback, the same habit helps preserve ride quality and all-weather confidence. If a tire begins losing pressure repeatedly, inspect the valve stem and wheel condition as well.

Yes, 2015 Subaru tires in these sizes can be suitable for highway driving when they are the correct size, in sound condition, and operated within their marked ratings. The speed ratings shown here include S up to 112 mph, W up to 168 mph, and Y up to 186 mph, depending on the size and product. Those figures are well above ordinary U.S. highway speeds, although they do not override the condition of the tire, the wheel, or the vehicle itself.

The real safety question is usually not whether the rating is high enough, but whether the tire is fresh, properly inflated, and appropriate for the Subaru model. A 225/65R17 Outback tire with an S rating and a 245/40R18 WRX STI tire with a Y rating are built for very different roles. Match the speed category to the actual tire you are considering, then make sure the rest of the car is equally ready for sustained road use.

Inflation pressure for a 2015 Subaru should start with the vehicle placard or owner's manual, because factory pressure targets are vehicle-specific. Tire-side figures here are best understood as maximum load and pressure references for individual products, not as a blanket Subaru setting. Examples include 215/45R17 at 1,201 pounds at 51 psi or 1,356 pounds at 50 psi depending on product, 225/65R17 at 2,150 pounds at 65 psi, and 245/40R18 products ranging from 1,235 pounds at 44 psi to 1,609 pounds at 50 psi.

That means pressure should never be copied from one Subaru size to another simply because both are on the same year make page. A BRZ, Outback, and WRX STI place very different demands on their tires. Use the car's factory placard as the baseline, then confirm that the tire itself is suitable for that application. If the vehicle has non-stock wheels or a specialty tire, review the tire maker's guidance before settling on a final cold pressure.

Before a longer drive in a 2015 Subaru, inspect each tire for cracking, punctures, uneven wear, cuts, bulges, and proper cold inflation pressure. Check the spare as well, since many enthusiast-owned cars go years without anyone looking at it. If the Subaru has been parked for an extended period, pay attention to vibration from temporary flat spotting during the first miles and confirm that each tire is holding air normally.

Tires are only one part of the pre-trip picture, but they are the part in direct contact with the road. On a BRZ, WRX, or WRX STI, also pay attention to alignment feel and steering response before committing to a long run. On an Outback or Legacy, confirm that the tire size and load capacity are appropriate for the way the vehicle will be used. A few minutes of inspection before departure can prevent the most common age- and neglect-related tire problems.