1985 Subaru Tire Fitment Guide

1985 Subaru vehicles use four tire sizes across five models: 155R13 for the DL, 165R13 for the DL and XT, 175/70R13 for the GL and GL-10, and 185/70R13 for the GL, GL-10, RX, and XT. Every size in this group mounts on a 13-inch rim, but width and profile change by model. Rim-width guidance also varies by size, with 155R13 fitting 4.00 to 5.50-inch rims, 165R13 fitting 4.50 to 6.00-inch rims, 175/70R13 fitting 4.5 to 6.0-inch rims, and 185/70R13 fitting 4.5 to 6.5-inch rims depending on the tire.

That means the key fitment question for a 1985 Subaru is not wheel diameter alone, since all four sizes share a 13-inch rim. The real issue is matching the correct width and profile to the exact model, then confirming the wheel itself falls within the approved rim-width range for the tire you want. If your car has changed hands over the years, verify the current wheel and compare it with the size tied to your DL, GL, GL-10, RX, or XT before moving forward.

On a 1985 Subaru, 155R13 is an older euro-metric radial size. The 155 refers to a nominal section width of 155 millimeters, the R indicates radial construction, and the 13 is the rim diameter in inches. Because there is no explicit aspect ratio in the code, this size is conventionally treated as an 80-series radial. In this application it belongs to the DL and appears in blackwall form from Michelin and Dunlop, with H-speed-rated examples in the size.

That older style of marking can look unusual next to modern sizes such as 175/70R13 or 185/70R13, but it is still a normal radial format for many imported cars of the period. The main takeaway is that 155R13 is not interchangeable simply because it shares a 13-inch rim with the other Subaru sizes. Width, overall stance, and wheel-width compatibility all change, so the code should be read as a full fitment designation rather than just a wheel diameter.

No. 1985 Subaru models do not all use the same tire size. The DL uses 155R13 and 165R13, the GL uses 175/70R13 and 185/70R13, the GL-10 uses 175/70R13 and 185/70R13, the RX uses 185/70R13, and the XT uses 165R13 and 185/70R13. Even though every size fits a 13-inch wheel, Subaru used different section widths and profiles across the lineup.

For a buyer, that means year and make alone are only the starting point on a 1985 Subaru search. A DL owner looking at 185/70R13 options, for example, is shopping a different fitment family than one centered on 155R13 or 165R13. Model identification matters before anything else, especially on cars that may have had wheels or trim swapped during decades of use, restoration, or enthusiast ownership.

1985 Subaru tire choices include more than one sidewall style, but the variety is concentrated in 185/70R13. The 155R13, 165R13, and 175/70R13 sizes are available as blackwalls, while 185/70R13 adds blackwall, redline, and wide whitewall options. For a mid-1980s Subaru, blackwall is the most natural visual match for factory-era appearance. Redline and wide whitewall treatments bring a more custom or heritage-styled look than most buyers would associate with an original 1985 Subaru presentation.

That matters most if your car is being restored with authenticity in mind or if you want the finished stance and style to feel appropriate to the period. A GL, GL-10, RX, or XT on 185/70R13 gives you the broadest appearance choices, while DL owners in 155R13 and XT or DL owners in 165R13 are working within a more traditional blackwall-only presentation. Choosing the right sidewall is often as important visually as choosing the right size.

1985 Subaru tire coverage comes from Michelin, Dunlop, BFGoodrich, and Avon. In 155R13, Michelin and Dunlop both appear; in 165R13, Michelin and Dunlop again cover the size; 175/70R13 is available from Avon; and 185/70R13 is covered by BFGoodrich, Avon, and Dunlop. All four sizes are radial, but each brand approaches the category from a slightly different angle, whether the emphasis is a classic blackwall look, a period European-style performance character, or a specialty sidewall treatment.

Brand choice is easiest after the model and size are settled, since the overlap is not the same across the full 1985 Subaru range. A DL owner shopping 155R13 or 165R13 will naturally compare Michelin and Dunlop, while a GL, GL-10, RX, or XT owner in 185/70R13 has the broadest spread of brands and visual styles. Looking at brand alongside sidewall style and speed rating usually gives a clearer picture than comparing brand names alone.

For a 1985 Subaru in 185/70R13, BFGoodrich Silvertown Radial and Dunlop SP Sport Aquajet differ in both appearance and rating details. The BFGoodrich tire appears in redline and wide whitewall versions, carries a maximum load figure of 1,135 pounds at 35 psi, and fits 5.00 to 6.50-inch rims. The Dunlop SP Sport Aquajet appears as a blackwall, carries a maximum load figure of 1,047 pounds, and uses a V speed rating with a 149 mph ceiling. Both are radial tires for the same nominal size, but they present the car very differently.

That makes the choice less about simple size equivalence and more about the kind of 1985 Subaru you are building. A BFGoodrich Silvertown Radial leans toward a styled appearance statement, especially with redline or wide whitewall treatment, while the Dunlop presents a more understated blackwall look with a clearly stated V-rated application. Confirm your wheel width first, then decide whether visual character or the specific published rating details matter more for your GL, GL-10, RX, or XT.

Rim-width guidance for 1985 Subaru tires depends on the size. 155R13 fits 4.00 to 5.50-inch rims, 165R13 fits 4.50 to 6.00-inch rims, 175/70R13 fits 4.5 to 6.0-inch rims, and 185/70R13 spans 4.5 to 6.5 inches depending on the tire. Not every product in every size includes a published range, so the wheel should always be checked against the specific tire selected rather than assuming all 13-inch tires share the same wheel-width tolerance.

That is especially important on older Subarus that may have aftermarket steel wheels, alloy swaps, or replacement wheels installed long after 1985. A tire can share the correct 13-inch rim diameter and still be a poor match if the wheel is too narrow or too wide for the tire’s approved range. Confirming rim width before ordering helps preserve correct shape, steering response, and bead seating on a DL, GL, GL-10, RX, or XT.

1985 Subaru tire tube requirements vary by product rather than staying uniform across the whole range. The Michelin 155R13 and 165R13 examples carry TL tubeless markings, while some other tires in those same sizes do not state TL in the size marking. The 175/70R13 and 185/70R13 products shown here do not use a blanket tube-type designation across the size group. Because of that variation, the exact sidewall marking on the tire should be matched to the wheel being used before deciding on tubes.

Wheel condition matters just as much as the tire marking on a collector Subaru. An original wheel with corrosion, pitting, or an imperfect bead seat may need a different approach than a fresh, airtight modern wheel. If your 1985 Subaru still wears older factory wheels, inspect them carefully and confirm the tire’s tubeless marking before final assembly rather than assuming every radial in a given size is treated the same way.

Original 1985 Subaru wheels can often accept more than one tire size only if the wheel matches the tire’s 13-inch rim diameter and falls within the approved rim-width range for that exact size. All four sizes used across the 1985 Subaru lineup share a 13-inch rim diameter, so wheel diameter itself is not the dividing line here. The limiting factor is width, since 155R13, 165R13, 175/70R13, and 185/70R13 do not all carry the same wheel-width requirements.

That means a wheel from one 1985 Subaru model should not automatically be assumed correct for another model’s tire size just because both are 13-inch applications. A DL wheel intended for a narrower tire may not be the ideal foundation for a wider RX or GL fitment, and the reverse can also be true. Measuring the actual wheel and comparing it to the tire’s approved range is the smart way to protect fit, stance, and drivability.

A 1985 Subaru should be stored on clean, properly inflated tires in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment. Because all of the tires in this fitment group are radial, they generally tolerate normal collector storage well, but long static periods can still encourage flat-spotting and sidewall aging. Rolling the car periodically helps change the tire’s footprint, and a clean storage surface reduces moisture transfer from concrete and dirt floors.

If the car will sit for months, many owners either move it occasionally or support it in a way that reduces constant load on one contact patch. Tire covers can help with light exposure, and a quick pressure check every few weeks is worthwhile on a low-use collector car. A small, well-kept Subaru often feels mechanically simple, but tire aging from storage conditions can still catch owners by surprise if the car is only driven seasonally.

Tires on a 1985 Subaru should be judged more by age and condition than by mileage. For collector use, a careful evaluation around five to seven years is a sensible practice, and replacement becomes a serious consideration as tires approach about ten years from their date of manufacture even if tread depth still looks healthy. The DOT date code on the sidewall gives the production week and year on modern tires, and that code is more useful than odometer reading on a low-mile classic or hobby car.

Many 1985 Subaru vehicles cover very limited annual mileage, so the tread can appear excellent while the rubber has already hardened or developed age-related cracking. Heat cycles, storage conditions, pressure maintenance, and exposure to sunlight all affect service life. An XT, RX, or GL that only comes out for shows and fair-weather drives may age out its tires long before it wears them out, which is why visual inspection and date verification matter so much.

Tires on a 1985 Subaru deserve a quick inspection before every drive and a more thorough inspection before any longer outing. Look for sidewall cracking, cuts, bulges, irregular wear, objects in the tread, and any sign that a tire is losing pressure between drives. On tires where tubeless marking varies by product, valve stems and wheel sealing condition also deserve attention because slow leaks may originate at the wheel interface rather than the tread itself.

A brief walkaround is often enough to catch problems before they become roadside issues. Collector Subarus are light, compact cars, so a tire can look serviceable at a glance while still hiding age damage or a pressure problem that affects handling and braking feel. If the car has been parked for an extended period, add a pressure check and a close look at the spare to the inspection routine before heading out.

1985 Subaru tires can be appropriate for highway driving when the tire is in good condition, correctly inflated, and used within its published rating. The sizes here are all radial, and the products with visible speed ratings include H-rated tires with a 130 mph ceiling and a V-rated 185/70R13 with a 149 mph ceiling. In real-world use, the tire’s rating is only one part of the equation. A mid-1980s Subaru’s brakes, suspension condition, wheel alignment, and overall mechanical state are just as important to stable highway behavior as the tire itself.

For most owners, the practical issue is not whether a 1985 Subaru tire can exceed normal interstate speed, but whether the whole car is prepared for sustained cruising after years of collector use. Fresh rubber, proper pressures, a recent chassis inspection, and wheels in sound condition matter more than chasing theoretical top-speed capacity. If your Subaru has been stored, revive it methodically before expecting modern long-distance confidence from an aging platform.

Inflation pressure for a 1985 Subaru should start with the factory recommendation for the exact model and tire size, then be checked against the tire maker’s published limits for the tire you choose. One 185/70R13 radial in this group carries a maximum load of 1,135 pounds at 35 psi, while a Dunlop in 185/70R13 carries a 1,047-pound maximum load figure. Other sizes here also vary, with Dunlop showing 937 pounds for 155R13 and 1,047 pounds for 165R13. Those figures are tire capacities, not universal running pressures for every 1985 Subaru.

That distinction matters because using a maximum sidewall pressure as a default setting can make a light older car feel harsher or wear unevenly. Match pressure to the specific Subaru model, the exact tire size, and the tire maker’s guidance instead of borrowing a number from another size in the range. If the car still has its original placard or owner’s manual, use that as the baseline and fine-tune only within the tire manufacturer’s approved limits.

Before taking a 1985 Subaru on a longer drive, inspect all four tires and the spare for cracking, cuts, punctures, bulges, uneven wear, and correct inflation. Verify that the wheel and tire combination matches the proper size for your DL, GL, GL-10, RX, or XT, and look closely at valve stems and bead areas for signs of leakage. Since these cars are now firmly in collector territory, tires should be part of a broader pre-trip review that also includes brakes, coolant hoses, belts, lights, and fluid levels.

A longer drive puts steady heat and load into the tire, which can expose problems that a short neighborhood loop never reveals. Highway miles also magnify old alignment issues and vibration that may have gone unnoticed during casual use. Spending a few extra minutes on tire condition, pressure, and spare readiness is one of the easiest ways to make a vintage Subaru trip more predictable and less stressful.