In 1998, Infiniti balanced two different ideas of luxury performance: the front-drive I30 as a refined sport sedan and the rear-drive Q45 as the brand’s flagship full-size car. That makes 1998 Infiniti tire selection less about the badge on the hood and more about identifying which chassis you own, because the year spans two models and three radial sizes. The I30 itself can wear either a 15-inch or 16-inch fitment, while the Q45 uses its own 16-inch size. Before choosing a tire, confirm your exact model first, then verify whether your car is on the original wheel diameter or an alternate factory fitment.
Which Tire Size Is Right for Your 1998 Infiniti
Three tire sizes are used across 1998 Infiniti vehicles, and they vary by model rather than carrying across the whole lineup. The real decision starts with confirming the correct rim diameter, since the I30 spans both 15-inch and 16-inch fitments while the Q45 uses a separate 16-inch size. Understanding that distinction before choosing a product saves time and helps match the tire to the right car.
Year(s): 1998|Fit(s): I30|Construction: Radial|Rim: 15 in
205/65R15 is a radial metric size with a 205-millimeter section width, a 65-series aspect ratio, and a 15-inch rim diameter. This I30-specific size is available from BFGoodrich in Wide Whitewall and Redline sidewall styles, with a 1,400-pound load rating at 35 psi and a rim width range of 5.50 to 7.50 inches. It suits an owner who wants a 15-inch fitment with a strong period-custom visual cue rather than a modern blackwall performance look.
Year(s): 1998|Fit(s): I30|Construction: Radial|Rim: 16 in
215/55R16 is a radial metric size with a 215-millimeter section width, a 55-series aspect ratio, and a 16-inch rim diameter. This I30-specific size is available from BFGoodrich and American Classic in Blackwall, Redline, and Wide Whitewall styles, and speed rating can vary by product: the BFGoodrich g-Force Sport COMP-2 carries a W rating to 168 mph, while the American Classic versions use a standard 215/55R16 marking with a 1,190-pound load rating at 35 psi. Drivers who want a 16-inch I30 fitment can choose between a more contemporary blackwall performance character and restoration-style whitewall or redline appearance.
Year(s): 1998|Fit(s): Q45|Construction: Radial|Rim: 16-in rim
215/60R16 is a radial metric size with a 215-millimeter section width, a 60-series aspect ratio, and a 16-inch rim diameter. This Q45-specific size mounts on a 16-inch wheel and serves the larger Infiniti flagship rather than the I30. It is the size to focus on if you own a 1998 Q45 and need the fitment matched to that model’s original wheel diameter.
Two Infiniti models are covered for 1998, and they do not all use the same tire size. The I30 and Q45 differ enough in platform and wheel fitment that identifying the model matters before you narrow the search to a size. Select a model below to see model-specific tire fitment history and matching products.
1998 Infiniti I30
The 1998 Infiniti I30 was Infiniti’s near-luxury sedan, blending Maxima-based engineering with a more upscale interior and appearance package. It uses either a 15-inch or 16-inch tire fitment depending on wheel setup, so I30 owners should confirm which factory-size wheel is on the car before choosing a tire.
Associated Tire Sizes:
205/65R15 — radial, custom-style whitewall or redline
215/55R16 — radial, modern or custom-style appearance
The 1998 Infiniti Q45 was the brand’s full-size luxury sedan, aimed at buyers who wanted quiet power and a more substantial highway car than the I30. Its tires mount on a 16-inch rim in the fitment covered here, and that makes it a separate choice from the I30 rather than a shared year-and-make size.
Associated Tire Sizes:
215/60R16 — radial, factory-style full-size sedan fitment
Five products are available across two tire sizes for 1998 Infiniti vehicles. The 205/65R15 comes in two BFGoodrich radial options with Wide Whitewall or Redline styling, while the 215/55R16 comes in three radial options from BFGoodrich and American Classic with Blackwall, Redline, and Wide Whitewall choices. Confirm your size first, since speed ratings vary within 215/55R16 products.
Radial Tires
BFGoodrich Silvertown Radial | 2 Inch Whitewall | 205/65R15
These FAQs cover how 1998 Infiniti tire sizing splits between the I30 and Q45, what the metric radial codes mean, how sidewall styling changes the look, and what to check for highway use and long-term collector care.
Size Basics & Fitment
What tire sizes fit 1998 Infiniti vehicles?
Three sizes fit 1998 Infiniti vehicles in this model range: 205/65R15 and 215/55R16 for the 1998 Infiniti I30, and 215/60R16 for the 1998 Infiniti Q45. The 205/65R15 mounts on a 15-inch rim, while both 16-inch sizes mount on 16-inch rims. Rim width guidance is available for 205/65R15 and 215/55R16 at 5.50 to 7.50 inches.
The practical takeaway is that year and make alone are not enough here. An I30 owner still needs to confirm whether the car has the 15-inch or 16-inch factory fitment, and a Q45 owner should stay focused on the 215/60R16 size used for that model. Checking the sidewall of the existing tire and confirming the wheel diameter before ordering prevents the most common mistake on 1998 Infiniti applications.
What does 205/65R15 mean on a 1998 Infiniti tire?
On a 1998 Infiniti, 205/65R15 is a metric radial size. The 205 is the nominal section width in millimeters, 65 is the aspect ratio, meaning the sidewall height is 65 percent of the section width, R identifies radial construction, and 15 is the rim diameter in inches. On 1998 Infiniti applications, this size is used on the I30.
That code matters because it tells you both the wheel diameter and the basic tire proportions. A 205/65R15 will not interchange with a 16-inch fitment, even if the car is the same year and make. For an I30 owner, this size usually points to the 15-inch wheel setup, and it is also the size tied to the available redline and wide whitewall radial options.
Do all 1998 Infiniti models use the same tire size?
No. The 1998 Infiniti lineup covered here uses different tire sizes by model. The I30 can use either 205/65R15 or 215/55R16, while the Q45 uses 215/60R16. Even though two of those sizes share a 16-inch rim diameter, they are not the same size and should not be treated as interchangeable without confirming the correct fitment for the model and wheel.
That difference reflects the fact that the I30 and Q45 were built for different roles. The I30 was a midsize luxury sedan with more than one wheel package, while the Q45 was Infiniti’s larger flagship. If you are still early in your search, identify the model first and then check the wheel diameter on the car; that narrows the field much faster than trying to choose by appearance alone.
Buying the Right Tire
Should I choose the 205/65R15 or the 215/55R16 for my 1998 Infiniti?
For a 1998 Infiniti I30, the choice between 205/65R15 and 215/55R16 is a fitment question first, not a simple preference question. The 205/65R15 fits a 15-inch wheel, while the 215/55R16 fits a 16-inch wheel. Both are radial sizes, so this is not a bias-ply-versus-radial decision; it is about matching the tire to the actual wheel diameter and overall setup on your I30.
Once the wheel diameter is confirmed, the buying decision becomes more about appearance and intended use. The 205/65R15 is available with redline and wide whitewall styling, and the 215/55R16 opens the door to blackwall, redline, or whitewall looks. If the car still wears its factory-size wheels, stay with that diameter unless you are intentionally returning it to another factory I30 wheel package.
What sidewall styles are available for 1998 Infiniti tires?
1998 Infiniti tires in these sizes are available with several distinct sidewall looks. The 205/65R15 comes in Wide Whitewall and Redline form, while the 215/55R16 is available in Blackwall, Redline, and Wide Whitewall versions. That gives I30 owners the widest visual range, from a contemporary blackwall look to more custom-oriented period styling cues.
Sidewall choice can change the personality of the car even when the tire size stays the same. A blackwall usually suits a cleaner late-1990s factory appearance, while a redline or whitewall can lean toward a custom or nostalgic presentation. For a 1998 Infiniti, the best choice is the one that matches how the car is being presented, whether that means preserving an original luxury-sedan look or emphasizing a more distinctive style.
What brands make tires for 1998 Infiniti vehicles?
1998 Infiniti fitments here are covered by BFGoodrich and American Classic. BFGoodrich appears in both 205/65R15 and 215/55R16, while American Classic appears in 215/55R16. Within those sizes, BFGoodrich spans both Silvertown Radial styling options and the g-Force Sport COMP-2 blackwall performance-oriented option, while American Classic covers redline and whitewall radial versions in 215/55R16.
Brand choice often comes down to the look you want and the character of the tire itself. An owner seeking a custom-style whitewall or redline treatment may gravitate toward BFGoodrich Silvertown Radial or American Classic, while someone pursuing a more modern blackwall appearance in 215/55R16 may focus on the BFGoodrich g-Force option. After that, compare the sidewall style, speed rating, and wheel diameter match before making the final selection.
Fitting & Setup
What rim width do 1998 Infiniti tires require?
Rim width guidance for 1998 Infiniti applications is available for two of the three sizes here. The 205/65R15 fits rims from 5.50 to 7.50 inches wide, and the 215/55R16 also fits rims from 5.50 to 7.50 inches wide. Both sizes are used on the I30, but they still require different rim diameters: 15 inches for the first size and 16 inches for the second.
That means wheel diameter and wheel width both need to be checked before mounting a new set. A wheel can have the correct bolt-on application for the car but still be the wrong diameter or outside the recommended width range for the tire. If your I30 has been changed from one factory wheel package to another over the years, measure the wheel or confirm the stamp before choosing between 205/65R15 and 215/55R16.
Do 1998 Infiniti tires require inner tubes?
The 1998 Infiniti sizes covered here are radial passenger-car tires, and the available products are presented without tube-type markings. That points to tubeless-style fitments rather than traditional inner-tube applications. Tube-specific practice is far more common on earlier collector vehicles or specialty wheels than on late-1990s Infiniti sedans with standard radial passenger tires.
Even so, the wheel itself still matters. If a wheel has damage, corrosion, or has been altered, that can affect how well a tubeless tire seals. Before mounting new tires on a 1998 Infiniti, inspect the wheel bead area, valve stems, and overall wheel condition so the tire-and-wheel assembly matches the intended tubeless setup and holds pressure properly over time.
Maintenance, Storage & Longevity
How should I store a 1998 Infiniti when the tires are fitted?
A 1998 Infiniti should be stored in a cool, dry space away from direct sunlight, standing water, heaters, welders, electric motors, and other ozone-producing equipment that can age rubber. Keep the tires at correct pressure, move the car occasionally if practical, and avoid letting it sit for long periods on underinflated tires. Radial tires generally tolerate storage better than old bias-ply designs, but they still age from time, heat, and environment.
For a car that spends long stretches parked, tire care is as important as fuel stabilization or battery maintenance. Clean floors, proper inflation, and occasional repositioning help reduce flat-spotting and stress on one contact patch. If the car is going into extended seasonal storage, many owners also use stands or cradles as part of a broader preservation routine, especially if the vehicle is kept more as a collector car than a daily driver.
How long do tires on a 1998 Infiniti typically last?
On a 1998 Infiniti, tire age matters more than mileage once the car becomes an occasional-use vehicle. A good rule is to start evaluating tires closely around five to seven years of age and to treat about ten years as the point where replacement deserves serious consideration regardless of tread depth. The DOT date code on the sidewall tells you when the tire was made.
Collector and hobby vehicles often wear out tires chemically before they wear them out mechanically. A tire can still look presentable and have usable tread but be past its safest service life because the rubber has hardened or cracked with age. If your 1998 Infiniti sees only seasonal driving, make the age check part of regular maintenance instead of judging the tire by tread alone.
How often should tires on a 1998 Infiniti be inspected?
Tires on a 1998 Infiniti should be inspected before every drive and again before any longer highway outing. Look for cracking, bulges, uneven wear, punctures, exposed cords, and signs that the tire is losing pressure between drives. Because these are radial passenger-car sizes, stable air pressure and clean sidewalls are good early indicators that the tire and wheel assembly are still healthy.
Regular inspection is especially important on a car that may sit more than it drives. Small problems often show up first as a pressure change, a slight vibration, or visible weathering near the sidewall and tread shoulder. Catching that early can prevent damage to the wheel or bodywork and keeps a weekend drive from turning into a roadside problem, which matters more on an older luxury car used selectively.
Restoration & Authenticity
What tires were originally fitted to the 1998 Infiniti I30?
A 1998 Infiniti I30 would have been fitted with radial tires from new, and the two fitments covered here are 205/65R15 and 215/55R16 depending on wheel package. That makes radial construction the era-correct starting point for authenticity on the I30. If you are chasing exact factory presentation, the key first step is confirming which original wheel diameter your car was delivered with.
Late-1990s Japanese luxury cars are usually judged more on having the right size, wheel diameter, and overall visual character than on using an earlier-style collector tire format. For model-year and market-specific confirmation, especially if the car has unusual trim or regional equipment differences, an Infiniti marque club, original sales literature, or factory documentation is the right final reference point before committing to a show-oriented setup.
Does correct tire fitment matter for showing a 1998 Infiniti?
Yes, correct tire fitment matters on a 1998 Infiniti if the car is being judged seriously. Size, sidewall profile, wheel diameter, and overall appearance all affect whether the car looks true to period. A 15-inch I30 tire on a car meant to wear a 16-inch package, or a sidewall style that changes the visual character dramatically, can stand out immediately even if the tire physically fits the wheel.
The level of scrutiny depends on the event. A relaxed local show may welcome tasteful personalization, while marque-focused judging usually rewards factory-correct proportions and appearance. If originality is the goal, verify the car’s original wheel package first, then choose the sidewall style that best matches the presentation you are after. Event rules and Infiniti enthusiast groups are the best source for the final standard that a particular show will apply.
What is the difference between BFGoodrich g-Force Sport COMP-2 and American Classic Radial for the 1998 Infiniti?
For the 1998 Infiniti I30 in 215/55R16, BFGoodrich g-Force Sport COMP-2 and American Classic Radial take two very different approaches. The BFGoodrich uses a blackwall presentation and carries a W speed rating to 168 mph in 215/55ZR16 93W XL form. The American Classic versions come in redline and wide whitewall styles, carry a 1,190-pound load rating at 35 psi, and fit rims from 5.50 to 7.50 inches wide.
That makes the choice less about whether one tire fits and more about what kind of I30 you are building. The BFGoodrich g-Force leans toward a later-model performance appearance, while the American Classic options are much more appearance-driven for owners who want a distinctive sidewall treatment. If your priority is factory-like late-1990s blackwall character, start with the g-Force; if visual style is central, compare the American Classic redline and whitewall versions.
Safety & Road Use
Are 1998 Infiniti tires safe for highway driving?
Yes, 1998 Infiniti tires can be appropriate for highway driving when the correct size is chosen, the tires are in sound condition, and the speed rating matches how the car will be used. The 215/55R16 BFGoodrich g-Force Sport COMP-2 carries a W rating, which corresponds to a maximum speed capability of 168 mph under test conditions. The other radial sizes covered here are also intended for passenger-car road use, but safe driving still depends on age, condition, inflation, and proper fitment.
In real-world use, the tire is only one part of the equation. A 1998 Infiniti may have the highway manners for modern traffic, but suspension wear, brake condition, alignment, and old rubber parts can matter just as much as the tire itself. Before sustained highway use, verify the tire’s age and condition, then treat the vehicle as a complete system rather than assuming a newer-looking tread automatically makes the whole car road-ready.
What inflation pressure should I use for 1998 Infiniti tires?
Inflation pressure on a 1998 Infiniti should start with the vehicle placard or owner’s manual for the original factory recommendation, then be checked against the tire maker’s own sidewall and application guidance. Two fitments here include load and pressure figures: 205/65R15 at 1,400 pounds at 35 psi, and 215/55R16 in one radial application at 1,190 pounds at 35 psi. Those figures describe the tire’s rated load at that pressure, not a blanket inflation setting for every 1998 Infiniti size.
That distinction matters because pressures should not be transferred from one size to another or from one model to another just because both wear radial tires. An I30 on 205/65R15 and a Q45 on 215/60R16 are different applications. Use the car’s factory recommendation as your baseline, confirm the tire’s own rating, and make sure all four tires are matched before evaluating ride quality, wear, or handling.
What should I check before taking a 1998 Infiniti on a longer drive?
Before a longer drive in a 1998 Infiniti, inspect each tire for sidewall cracking, cuts, punctures, bulges, unusual shoulder wear, and proper cold inflation pressure. Check that valve stems are sound, the spare is usable, and the wheel has no obvious damage or corrosion around the bead area. On a car that may sit between outings, pressure loss and age-related deterioration often matter more than tread depth alone.
A longer trip is also the right time to look beyond the tires. Brake condition, fluid levels, belts, hoses, battery health, and suspension play should all be part of the pre-drive routine on a late-1990s luxury car. Tires are the only part touching the road, but they work with the rest of the chassis, so a careful inspection helps the car feel stable, quiet, and predictable once the miles start adding up.