2008 Subaru Tire Fitment Guide

2008 Subaru vehicles use seven sizes across three model lines: 205/55R16, 205/50R17, 245/40R18, 215/45R18, 215/45R17, 225/55R17, and 225/60R16. The Impreza uses 205/55R16, 205/50R17, and 245/40R18; the Legacy uses 205/50R17, 215/45R18, and 215/45R17; and the Outback uses 225/55R17 and 225/60R16. Rim-width guidance varies by size, with examples including 5.5 to 7.5 inches for 205/55R16 and 205/50R17, 7.0 to 8.0 inches for 215/45R17 and 215/45R18, 8.0 to 9.5 inches for 245/40R18, 6.0 to 8.0 inches for 225/55R17, and 6.0 to 9.0 inches for many 225/60R16 applications.

That means year and make alone are not enough for a confident tire choice on a 2008 Subaru. You need to confirm whether you have an Impreza, Legacy, or Outback, then verify the wheel diameter already on the car before comparing products. Once the size is settled, you can move on to sidewall style, load capacity, and speed rating instead of trying to force one Subaru model's tire onto another model with a different profile or wheel diameter.

On a 2008 Subaru, 205/50R17 is a metric radial size. The 205 is the nominal section width in millimeters, the 50 is the aspect ratio, meaning the sidewall height is 50 percent of the section width, the R indicates radial construction, and the 17 is the wheel diameter in inches. This size appears on both the 2008 Subaru Impreza and 2008 Subaru Legacy, making it the one shared fitment across two Subaru model lines that year.

The practical takeaway is that 205/50R17 describes both the tire's proportions and the wheel it must mount on. Even though it is shared by two 2008 Subaru models, you should still confirm the exact wheel and trim package on the car because another Impreza or Legacy may use a different 17-inch or 18-inch size. After that, compare sidewall style and speed marking to match the car's intended use and visual character.

No, 2008 Subaru models do not use the same tire size. The Impreza, Legacy, and Outback each have their own fitment range, and only 205/50R17 overlaps between more than one model. Several sizes are model-specific, including 205/55R16 and 245/40R18 for the Impreza, 215/45R17 and 215/45R18 for the Legacy, and 225/55R17 and 225/60R16 for the Outback.

That variation matters because a 17-inch Subaru tire is not automatically interchangeable with every other 17-inch Subaru tire from 2008. The section width and aspect ratio change the tire's overall shape, while the vehicle's intended ride height and wheel package also play a role. If you are unsure, check the sidewall on the current tires and confirm it against the exact model before choosing a replacement.

2008 Subaru tire choices range from straightforward blackwall designs to more specialized visual treatments, depending on size. Blackwall appears across every size with the broadest coverage, while 205/50R17 also offers a wide whitewall, 225/55R17 adds a wide whitewall option, and 225/60R16 opens the door to raised yellow letter, redline, pin white stripe, and wide whitewall styles. Those appearance choices are far more common in custom, nostalgic, or specialty builds than on a stock 2008 Subaru.

If your goal is an OEM-like appearance, blackwall is the most natural direction for a 2008 Subaru. If the car is being built as a cruiser, show car, or personalized project, the whitewall, stripe, or raised-letter options can completely change the look while staying within the correct size. Match the sidewall style to the personality of the car rather than assuming every product in the same size will present the same visual character.

BFGoodrich covers the broadest portion of the 2008 Subaru range, appearing in every size from 205/55R16 through 225/60R16. Michelin appears in 205/55R16, American Classic appears in 205/50R17, Nitto appears in 245/40R18, M&H Racemaster appears in 245/40R18, and Goodyear appears in 225/60R16. Brand coverage changes significantly by size, so the available choices for an Impreza 18-inch fitment differ from those for an Outback 16-inch fitment.

That means the right question is not just which brand you prefer, but which brands support the exact size on your Subaru. Once size is confirmed, compare each brand's sidewall treatment, load capacity, and speed marking for that application. On a year like 2008, brand choice is often driven as much by the look you want and the wheel package you have as by the name on the sidewall.

Within 225/60R16 for the 2008 Subaru Outback, BFGoodrich Silvertown Radial and Goodyear Eagle NASCAR serve noticeably different visual roles. The Goodyear comes as a raised yellow letter radial with a 6.0 to 7.0 inch rim-width range and a maximum load capacity of 1609 pounds at 44 psi. BFGoodrich Silvertown Radial appears in redline, pin white stripe, and wide whitewall forms, generally covering a broader 6.00 to 9.00 inch rim-width range, with examples carrying 1609 pounds at either 44 psi or 34 psi depending on the version.

For an Outback owner, the real distinction is appearance first and wheel compatibility second. The Goodyear leans into an unmistakable performance-era sidewall look, while the BFGoodrich choices lean custom or nostalgic. Because the pressure marking differs within the BFGoodrich family, use the exact product's sidewall and manufacturer guidance rather than assuming one 225/60R16 recommendation applies to every version of that size.

Rim-width requirements for 2008 Subaru tires depend on the size. 205/55R16 and 205/50R17 fit 5.5 to 7.5 inch rims, 215/45R17 and 215/45R18 fit 7.0 to 8.0 inch rims, 245/40R18 fits 8.0 to 9.5 inch rims with one drag-oriented example at 8.5 inches, 225/55R17 typically fits 6.0 to 8.0 inches with one version reaching 9.0 inches, and 225/60R16 ranges from 6.0 to 7.0 inches on one application to 6.00 to 9.00 inches on others.

Those ranges are important because wheel diameter alone does not guarantee a proper match. A 17-inch wheel can still be too narrow or too wide for the tire you want to use. Before mounting anything on a 2008 Subaru, confirm the exact wheel width on the car and compare it to the approved range for the specific tire, especially if the car has aftermarket wheels or a specialty sidewall style.

Most 2008 Subaru tire options here are radial tires intended for modern wheel applications, but tube marking can vary by product. Michelin marks the 205/55R16 as TL, and one BFGoodrich 245/40ZR18 also carries a TL marking, while many other products show no explicit tube designation in the size string. That means tube status is not uniform enough across every product to make one blanket statement for all 2008 Subaru sizes.

The safest approach is to treat the wheel and the exact tire together as a matched system. If your Subaru still uses factory-style late-model wheels in good condition, tubeless radial fitment is the normal expectation, but you should confirm the specific product's sidewall marking and the wheel's condition before installation. That matters even more when using specialty sidewall treatments or non-standard wheels on a customized car.

A stored 2008 Subaru should be kept in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, furnaces, and other ozone-producing equipment that can accelerate sidewall aging. Keep the tires clean, maintain proper inflation, and move the car periodically so it is not resting on the same footprint for months at a time. Even though these are radial sizes, long static storage can still promote flat spotting and age-related sidewall deterioration.

If the car will sit through an off-season, many owners either roll it a short distance every few weeks or support it in a way that reduces constant load on one contact patch. That is especially helpful for cars with low-profile 17- and 18-inch tires, where any distortion can be more noticeable when the car goes back on the road. A fitted cover and clean floor help too, but sunlight and ozone control are the biggest priorities.

On a collector-minded or low-mileage 2008 Subaru, tire age often matters more than tread depth. A practical rule is to begin evaluating tires closely once they are around five to seven years old and to treat ten years as a serious replacement threshold, even if the tread still looks good. The DOT date code on each tire tells you when it was made, and that date is a better guide than mileage alone for a seldom-driven car.

That age-based mindset is especially important for a Subaru that sees occasional use, weekend miles, or long periods in storage. A tire can look healthy at a glance and still have hardened rubber, internal aging, or sidewall cracking that changes how it behaves. Check the date code on all four tires and the spare, then compare age with actual condition before planning any long trip or spirited drive.

Tires on a 2008 Subaru should be checked before every drive and given a more thorough inspection before any extended highway trip. Look for sidewall cracks, cuts, bulges, punctures, uneven tread wear, and pressure loss, and pay close attention to older tires that may have aged out before the tread wore out. Valve stems deserve attention too, since an aging stem can create the same kind of air-loss problem as a damaged tire.

Regular inspection is one of the easiest ways to protect an older Subaru that may not be driven daily. Low-profile sizes such as 215/45R17, 215/45R18, and 245/40R18 are especially worth monitoring because impact damage and edge wear can show up quickly if inflation is off. A brief check before each drive takes only a moment and can prevent a much larger problem on the road.

The radial tires used across the 2008 Subaru range are suitable for highway use when they are the correct size, in sound condition, and inflated properly. Many of the products here carry a W speed rating, which corresponds to 112 mph, while some 205/55R16 and 245/40R18 products reach Y, or 186+ mph. A few specialty or custom-look products do not show a visible speed letter in the size marking, so the exact product should be checked individually before extended high-speed use.

In real-world driving, overall condition matters more than the headline speed symbol. Subaru's chassis and all-wheel-drive layout make these cars very capable, but highway safety still depends on age, pressure, alignment, suspension condition, and brake health. If the car is a low-use example or a custom build with unusual sidewall styling, confirm the exact tire's rating and condition before treating it like a modern long-distance commuter.

Inflation pressure for a 2008 Subaru should start with the factory vehicle recommendation, then be cross-checked against the specific tire's sidewall and manufacturer's guidance. Several products in these sizes include rated load-and-pressure pairings, such as 1356 pounds at 50 psi for one 205/55R16, 1433 pounds at 50 psi for one 205/50R17, 1433 pounds at 50 psi for one 215/45R18, 1819 pounds at 50 psi for one 225/55R17, and 1609 pounds at either 44 psi or 34 psi depending on the exact 225/60R16 product.

Those figures are maximum load-and-pressure ratings, not universal vehicle settings for every 2008 Subaru. Do not transfer a pressure figure from one size to another, and do not assume every tire in the same size uses the same pressure ceiling. For the best result, use the Subaru placard or owner's manual as the baseline for the car, then verify that the selected tire is being used within its own rated limits.

Before a longer drive in a 2008 Subaru, inspect each tire for cracking, cuts, bulges, punctures, tread separation, and irregular wear, then verify cold inflation pressure on all four corners and the spare. Check that valve stems are in good shape, especially on older tires or wheels that have been sitting for a while. It is also wise to confirm tire age and make sure the wheel diameter and tire size match at all four positions unless the car is intentionally set up otherwise.

That tire inspection should be part of a broader pre-trip check that includes brakes, fluids, battery condition, and suspension basics. On a 2008 Subaru, all-wheel-drive operation also makes uniform tire condition especially important, since large differences in size or wear can create driveline stress. A careful once-over before departure is far easier than dealing with a failure far from home.