1998 Buick Tire Fitment Guide

1998 Buick vehicles use five tire sizes across six model lines: 205/70R15 for Century and some LeSabre applications, 215/60R16 for LeSabre, 225/60R16 for Park Avenue, Regal, and Riviera, 215/70R15 for Regal, and 195/70R14 for Skylark. Rim diameters span 14, 15, and 16 inches, so there is no single universal tire size for the full 1998 Buick lineup.

That means year and make alone are not enough to choose a tire for a 1998 Buick. Start by confirming the model, then confirm whether the car is on 14-, 15-, or 16-inch wheels. Once that is settled, the remaining choice usually comes down to sidewall appearance, speed rating, and whether you want a more formal whitewall look or a sportier blackwall, raised-white-letter, or specialty sidewall treatment.

On a 1998 Buick tire, 205/70R15 is a metric radial size. The 205 is the nominal section width in millimeters, 70 is the aspect ratio, the R means radial construction, and 15 is the wheel diameter in inches. Within the 1998 Buick range, that size fits Century and certain LeSabre applications.

Understanding that code helps separate it from Buick’s other late-1990s fitments, especially the 15-inch 215/70R15 and the 16-inch 215/60R16 and 225/60R16 sizes. A 205/70R15 buyer should also pay attention to sidewall style and speed rating, since this size appears in blackwall, narrow whitewall, and wide whitewall versions, with some products carrying higher speed capability than others.

No. 1998 Buick models do not all use the same tire size. Century uses 205/70R15, Skylark uses 195/70R14, Park Avenue and Riviera use 225/60R16, LeSabre can use either 205/70R15 or 215/60R16, and Regal can use either 215/70R15 or 225/60R16 depending on wheel fitment.

That variation matters because a 15-inch Buick tire cannot simply replace a 16-inch Buick tire, and even two 15-inch sizes can differ in width and overall profile. If the car has been changed from its original wheel package over the years, verify the actual wheel diameter and check the tire placard, owner’s manual, or current wheel before choosing a replacement.

1998 Buick tires span a wide range of sidewall appearances depending on size. The 205/70R15 size is available in blackwall, narrow whitewall, and wide whitewall styles. The 225/60R16 size adds raised yellow letter, redline, pin white stripe, and wide whitewall options, while 215/70R15 includes blackwall, raised white letter, and wide whitewall versions. The 195/70R14 fitment here appears as a blackwall radial.

That gives a 1998 Buick owner room to match the car’s personality. A Century or LeSabre often looks most at home with a restrained whitewall or clean blackwall, while a Regal can lean toward a sportier lettered look. Park Avenue and Riviera owners often choose between elegant stripe treatments and a more contemporary blackwall presentation, depending on whether the goal is factory-style appearance or a personalized period look.

Several brands cover 1998 Buick fitments. In 205/70R15, options include Maxxis, Michelin, Avon, and American Classic. In 225/60R16, options include Goodyear and BFGoodrich. In 215/70R15, options include Cooper, BFGoodrich, Dunlop, and Avon. The 195/70R14 fitment here is covered by Dunlop.

Brand choice often overlaps with the visual and driving character you want from the car. Some options are aimed at a traditional Buick look through whitewall styling, while others suit a more performance-oriented or late-1990s blackwall appearance. Once you know your correct size, it helps to narrow the search by deciding whether appearance, touring-style use, or a more sporting presentation is the main priority.

Both Michelin XWX and Avon CR6ZZ cover the 205/70R15 fitment for a 1998 Buick, but they differ in sidewall presentation, speed marking, and wheel-width compatibility. The Michelin carries a blackwall sidewall, a 205/70VR15 size marking with a W speed rating, TL marking, a 5.50- to 7.50-inch rim-width range, and a 31-pound weight. The Avon CR6ZZ is also a blackwall, marked 205/70R15 96V, fits 5.0- to 7.0-inch rims, and weighs 24.69 pounds.

For a Buick owner, that means both tires live in the same fitment family but may appeal to different priorities within that size. The Michelin has the higher stated speed ceiling and a broader upper rim-width range, while the Avon carries a lighter weight and a different speed marking. Matching the tire to the wheel width already on the car is just as important as choosing between the two brands.

Rim-width requirements vary by 1998 Buick tire size. In 205/70R15, supported wheel widths run from 5.00-7.00 inches, 5.0-7.0 inches, or 5.50-7.50 inches depending on the product. In 225/60R16, the range runs from 6.0-7.0 inches or 6.00-9.00 inches depending on tire choice. In 215/70R15, products cover 5.5-7.0 inches and 5.50-7.50 inches. Not every tire in every size carries a published rim-width range here.

That range matters when a 1998 Buick has aftermarket wheels or a wheel package change from another model. Even when the tire size itself is correct, the tire still needs to fall within the wheel’s approved width range. Before choosing a tire, measure the wheel or confirm its width stamp so the tire’s section shape, tread profile, and sidewall behavior stay within the manufacturer’s intended limits.

Most 1998 Buick fitments here are modern radial applications, and one 205/70R15 Michelin XWX is explicitly marked TL for tubeless use. The other sizes shown do not carry a tube-type marking in the same way, so tube status can vary by product marking rather than by Buick model alone. Nothing in these 1998 Buick sizes points toward an all-tube-type fitment across the range.

The practical step is to check the exact sidewall marking of the tire you choose and the condition of the wheel it will be mounted on. Original late-1990s Buick wheels were designed around tubeless radial use, but wheel condition still matters. If a wheel has corrosion, damage, or another sealing issue, that should be corrected before mounting rather than assuming every tire in the same nominal size is handled identically.

A stored 1998 Buick should be kept out of direct sunlight, away from electric motors or ozone-producing equipment, and off damp ground whenever possible. Tire pressures should be kept at a normal holding level, and the car should be moved periodically or supported in a way that reduces long-term static loading if it will sit for extended periods. These are all radial fitments, which generally resist flat-spotting better than older bias-ply designs, but age and environment still matter.

For a collector Buick that spends much of its life parked, storage habits often affect tire condition more than mileage does. Whitewall and stripe tires also benefit from a clean, dry environment that limits staining and sidewall discoloration. If the car is stored seasonally, inspect the tires before the first drive each year rather than assuming a low-mile tire is automatically road-ready.

On a 1998 Buick, tire life is usually judged more by age than by miles, especially on collector-driven cars. A good rule is to begin paying close attention once tires reach the five- to seven-year range and to give serious replacement consideration as they approach ten years, regardless of tread depth. The DOT date code on the tire sidewall is the best way to determine age.

That matters because many Buicks from this era are lightly used, and tread can look healthy long after the rubber has started to harden. A Park Avenue, Riviera, or LeSabre that sees occasional touring use may still need replacement tires before the tread is worn out. If there is any sign of sidewall checking, separation, persistent air loss, or age-related stiffness, treat age as the deciding factor.

Tires on a 1998 Buick should be inspected before every drive, with a more thorough check before any longer trip. Look for sidewall cracking, cuts, bulges, uneven wear, and any change in how the tire is holding pressure. Since some Buick sizes here carry different speed ratings and load capabilities depending on the product, it is also wise to confirm that the tires remain matched as a set where that matters.

A quick walkaround catches problems early on a car that may sit between drives. Pay attention to valve stems, especially on older wheels or long-installed tires, and do not ignore vibration or pull that develops suddenly. On a low-use Buick, time and storage conditions are often the hidden causes of trouble, so regular inspection is one of the simplest ways to protect both the car and the trip.

A 1998 Buick Century would have been fitted originally with radial tires, not bias-ply construction. Within the 1998 Buick range covered here, the Century uses 205/70R15, which fits the late-1990s factory pattern of metric radial sizing on a 15-inch wheel. Original-equipment brand can vary by plant, market, and replacement history, so the most reliable confirmation comes from the car’s surviving placard, owner’s literature, or marque-focused references.

For a faithful restoration or preservation-minded driver, the key point is matching the Century’s original sizing format and overall visual character rather than chasing a generic Buick fitment. A blackwall radial will suit a standard late-1990s appearance, while some owners may prefer a whitewall treatment for a more traditional Buick presentation. If authenticity is important for a specific event, compare the tire choice against period photos and Century-specific references.

Yes, correct tire fitment matters when showing a 1998 Buick, even though it is a newer collector-era car than earlier classics. Judges and knowledgeable enthusiasts often notice whether the car is wearing the right overall size, the proper construction type for the era, and a sidewall style that makes sense for the model’s original market position. A Skylark on the wrong diameter or a luxury Buick on an overly aggressive sidewall treatment can stand out quickly.

That does not mean every 1998 Buick must wear the same look. A Regal can plausibly carry a sportier presentation than a Park Avenue, and a LeSabre may look more natural with a conservative sidewall than a muscle-inspired lettered tire. If the car will be judged, check event standards and Buick club guidance first, since authenticity expectations differ between preservation, stock, and personalized classes.

For a 1998 Buick using 225/60R16, BFGoodrich Silvertown Radial and Goodyear Eagle NASCAR differ mainly in appearance and wheel-width range. The Goodyear Eagle NASCAR carries a raised-yellow-letter sidewall, a 1609-pound maximum load at 44 psi, a 6.0- to 7.0-inch rim-width range, and a 24-pound weight. BFGoodrich Silvertown Radial appears as redline, pin white stripe, and wide whitewall versions, with a 6.00- to 9.00-inch rim-width range and a 28-pound weight in the versions shown here.

That makes the choice less about raw fitment and more about the style direction of the car. A Riviera or Park Avenue owner chasing a formal or period-inspired custom look may lean toward the BFGoodrich stripe or whitewall options, while a Regal owner after a more aggressive late-performance appearance may prefer the Goodyear lettered look. Wheel width should still be confirmed before settling on either tire family.

1998 Buick tires in these fitments are all radial designs, and several carry modern speed ratings that exceed normal highway use. Among the published markings here, V-rated products are capped at 149 mph and W-rated products at 168 mph. That is far beyond ordinary interstate speeds, so in real use the car’s overall mechanical condition, alignment, suspension wear, and braking system are usually more important safety factors than the tire’s top speed capability alone.

Highway safety still depends on choosing the correct size, maintaining proper inflation, and using tires that are fresh enough for road use. A LeSabre or Park Avenue with old but unworn tires can be less confidence-inspiring than one on newer tires with the same nominal size. For any longer highway run, check age, pressure retention, and visible sidewall condition before focusing on the speed letter alone.

Inflation pressure for a 1998 Buick should start with the factory recommendation for the specific model and tire size, then be checked against the tire’s own maximum-load marking where one is present. Among the fitments here, 205/70R15 appears with 1499 pounds at 35 psi, 225/60R16 appears up to 1609 pounds at 44 psi or 34 psi depending on product, and 215/70R15 appears up to 1620 pounds at 35 psi and 1,653 pounds on another application.

Those figures are not blanket running-pressure recommendations for every Buick or even every tire in the same size. They are load-and-pressure markings tied to specific tires. Use the owner’s manual or door placard as the baseline for the car, then confirm the chosen tire’s sidewall marking and manufacturer guidance so you do not transfer one product’s pressure figure to a different size or series.

Before taking a 1998 Buick on a longer drive, inspect each tire for cracking, cuts, bulges, punctures, and uneven wear, then verify cold inflation pressure and make sure the spare is usable. It is also smart to look at valve stems, confirm lug nuts are properly seated, and check that all four road tires match in size where the model calls for a single fitment. On older collector-driven cars, age is as important as tread depth.

A thorough pre-drive routine should also include the rest of the car, because tire condition is only one part of long-trip readiness on a late-1990s Buick. Cooling system health, brake feel, battery condition, and fluid levels all matter. When the tire side is handled first, you begin the trip with better pressure stability, more predictable ride quality, and a lower chance of age-related trouble on the road.