Oldsmobile 88 Series, Super 88 & 98 Tires

The Oldsmobile 88 Series, Super 88 & 98 uses two listed tire sizes in 1958: 850-14 and 900-14. Both are 14-inch bias-ply applications. The 850-14 products are built for 14-inch rims with recommended rim widths of 5.50 to 6.00 inches, while the 900-14 products are built for 14-inch rims with recommended rim widths of 6.00 to 7.00 inches.

That means the correct choice depends on the specific wheel and application on your car, not simply the model family name. Check the size on the existing tire, measure or verify the wheel width, and compare that information with the tire size range before deciding between the two. On a restoration, original vehicle paperwork or a marque expert can help settle a close call.

An 850-14 size on an Oldsmobile 88 Series, Super 88 & 98 is a numeric bias-ply tire designation from the period. The 850 refers to a nominal section width of about 8.50 inches, and the 14 refers to the wheel diameter in inches. In the available products for this size, the proper wheel is a 14-inch rim with a 5.50 to 6.00 inch rim width range.

Modern buyers sometimes expect older sizes to work like metric codes, but this one is much simpler: width first, wheel diameter second. The important practical step is matching both the 14-inch rim diameter and the wheel width range on the car. If your Oldsmobile is near the overlap point between wheel widths, verify the wheel carefully before selecting the narrower size.

A 1958 Oldsmobile 88 Series, Super 88 & 98 can show 2 tire sizes because the model group includes more than one wheel-and-tire application within the same production year. The listed sizes are 850-14 and 900-14, and both use 14-inch rims. The difference is the tire’s nominal width and the rim width range it is intended to fit.

That split usually matters to owners because trim, equipment level, or wheel choice can place one car in the narrower size and another in the wider one. The safest way to sort it out is to inspect the wheel already on the car and compare its width with the recommended range for each size. Looking only at the calendar year can lead to the wrong tire profile and fit.

The listed tires for the Oldsmobile 88 Series, Super 88 & 98 are bias-ply products in numeric period sizing, and a tube is required for these applications. Both 850-14 and 900-14 are offered as bias-ply construction in the available range. That places them in the traditional collector-car fitment approach rather than a modern tubeless radial replacement.

Tube fitment matters because the tube, tire, and wheel need to work together as a system. If your Oldsmobile still wears original-style wheels, make sure the wheel condition, banding where appropriate, and valve setup are suitable before mounting new tires. Proper tube installation also helps avoid pinching, heat buildup, and premature service issues on a collector car that sees occasional road use.

Start by checking the size marked on the tire currently fitted to your 1958 Oldsmobile 88 Series, Super 88 & 98 and then confirm the wheel width. The two listed sizes are 850-14 for 5.50 to 6.00 inch rims and 900-14 for 6.00 to 7.00 inch rims, both on 14-inch wheels. That overlap at 6.00 inches makes direct inspection especially important.

When a car has been restored, modified, or simply retired from regular use for many years, what is fitted now may not match how it left the factory. Compare the wheel width, overall stance, and any original paperwork you have before making a final decision. If your car sits in the overlap range, marque-specific knowledge can be helpful in choosing the more historically appropriate size.

The available Oldsmobile 88 Series, Super 88 & 98 tires include both wide whitewall and narrow whitewall sidewall styles. In each listed size, BFGoodrich offers a 2.25 inch whitewall and a 1.00 inch whitewall. Both are bias-ply tires in the Silvertown Classic Bias Ply series, so the visual difference is mainly the width of the white sidewall treatment.

That choice affects the finished look of a 1958 Oldsmobile almost as much as the wheel covers do. A wider whitewall often suits a fuller period presentation, while a narrower whitewall gives a slightly more restrained late-1950s appearance. If authenticity matters, compare your car with period photos, surviving original examples, or marque-club guidance before settling on the sidewall width.

The listed brand for Oldsmobile 88 Series, Super 88 & 98 tires is BFGoodrich. All four available products across the two sizes come from BFGoodrich, and all are part of the Silvertown Classic Bias Ply range. The differences within the available selection are the two sizes and the choice of narrow or wide whitewall styling.

That makes brand selection simple and shifts the real decision to fitment and appearance. Owners should focus on choosing the correct numeric size first, then the sidewall style that best matches the car’s presentation. Since both sizes are offered within the same brand family, keeping a matched set in construction and appearance across all four corners is straightforward.

A stored Oldsmobile 88 Series, Super 88 & 98 should be kept in a cool, dry, dark space away from direct sunlight, electric motors, ozone sources, and large temperature swings. Clean the tires gently, maintain appropriate inflation for storage, and avoid leaving the car in standing moisture or on contaminated concrete. Bias-ply collector tires benefit from a stable environment because long periods of disuse can be harder on them than regular moderate exercise.

If the car will sit for months, move it occasionally or use methods that reduce prolonged flat spotting and concentrated load on one contact patch. Many owners also keep the car covered and the tires out of direct UV exposure. Good storage habits preserve sidewall appearance, help the carcass age more evenly, and make spring recommissioning easier.

Tires on a Oldsmobile 88 Series, Super 88 & 98 should be inspected before each drive and more thoroughly at regular intervals during the season. Look for sidewall cracking, tread separation, impact damage, air loss, uneven wear, and signs that the tube or wheel may be causing trouble. On a low-use collector car, age and storage conditions can matter as much as mileage.

A walkaround inspection is quick, but a proper hands-on check is worth doing several times a year, especially before tours, shows, or highway use. Bias-ply tires can telegraph suspension or alignment issues through irregular wear patterns, so tire inspection is also a useful way to monitor the rest of the chassis. Any vibration, pull, or sudden change in behavior deserves immediate attention.

Tires on a Oldsmobile 88 Series, Super 88 & 98 should be replaced when age, cracking, hardening, bulges, separation, or other structural warning signs appear, even if the tread still looks deep. Collector cars often wear out tires by time and environment rather than by mileage alone. A tire that looks presentable on a show field can still be unsuitable for road use if the casing has aged out.

That is especially important on a heavy late-1950s Oldsmobile, where tire condition affects ride, braking feel, and stability. Replacement decisions should consider how the car is actually used, from local show driving to longer road miles. If a tire has an uncertain history, prolonged storage, or visible age-related deterioration, replacement is usually wiser than trying to stretch service life.

The Oldsmobile 88 Series, Super 88 & 98 is represented here with two period-style bias-ply sizes for 1958: 850-14 and 900-14. The available products are all BFGoodrich Silvertown Classic Bias Ply tires with either narrow or wide whitewall styling. Since both sizes appear within the same model group and year, original fitment can vary within the broader Oldsmobile range.

For an exact restoration, the best reference is the specific car’s factory literature, build information, or trusted marque-club guidance. That helps separate broad model-family listings from the individual car in your garage. Once the correct size is confirmed, sidewall width becomes the next authenticity choice, because the visual treatment strongly influences the finished late-1950s look.

Correct tire fitment can absolutely affect the value, presentation, and judging results of a Oldsmobile 88 Series, Super 88 & 98. Size, sidewall width, construction style, and overall stance all contribute to whether the car looks and feels appropriate for its era. Even when two sizes are broadly associated with the same model family, judges and knowledgeable buyers often notice whether the chosen setup suits the specific car.

The practical takeaway is that tire selection should be treated as part of the restoration, not as an afterthought. A car with the right wheel-and-tire proportions tends to sit correctly and present more convincingly. If the car is headed for concours or marque judging, compare your choice against period images and club standards before final mounting.

The listed sidewall styles for the Oldsmobile 88 Series, Super 88 & 98 are a 2.25 inch wide whitewall and a 1.00 inch narrow whitewall in both 850-14 and 900-14. Either style can suit a period-correct late-1950s presentation depending on the exact look you are trying to recreate. Both options preserve the proper bias-ply character while changing the visual emphasis of the tire.

Choosing between them comes down to restoration goal rather than mechanical fitment alone. A wide whitewall generally gives the car a more formal, high-style 1958 appearance, while a narrow whitewall can look slightly sportier or more restrained. If originality is the priority, use period photos of your model and trim level as the deciding guide.

Properly mounted, maintained, and used within their intended purpose, these bias-ply tires can be suitable for public-road use on a Oldsmobile 88 Series, Super 88 & 98. They are collector-car tires built in original-style sizes and construction, so they should be approached as specialty equipment rather than as modern high-speed touring tires. Their behavior will reflect the handling character of a late-1950s full-size car on bias-ply rubber.

Road use should match the condition of the car, the condition of the tires, and the expectations of period driving. Steering feel, braking response, and lane-tracking can differ noticeably from a modern radial-equipped car, especially for drivers who are new to bias-ply handling. A careful shakedown on local roads is a smart step before any longer outing.

Before driving a Oldsmobile 88 Series, Super 88 & 98, check tire inflation, visible sidewall and tread condition, valve stems, wheel security, and whether the car is wearing the correct 850-14 or 900-14 size for its wheels. Also look for uneven wear, cracks, cuts, bulges, or signs that a tube-related problem may be developing. Because these are bias-ply tires, condition and setup matter as much as remaining tread depth.

A pre-drive check should also include the broader chassis, especially steering, brakes, suspension, and wheel bearings, since tire behavior reflects those systems. If the car has been sitting, take the first few miles gently and pay attention to vibration or pulling. Catching a small issue early is far easier than dealing with a roadside failure in a heavy full-size Oldsmobile.

A Oldsmobile 88 Series, Super 88 & 98 on original-style bias-ply tires should be driven at moderate, sensible speeds that respect the design of the tire, the age and condition of the car, and prevailing road conditions. Even though the car itself comes from a high-speed American highway era, period-style bias-ply tires do not behave like modern radials. Their steering response and stability can feel different, especially on grooved pavement, crowned roads, or in crosswinds.

The right approach is to let the car and tire condition set the pace rather than trying to match modern traffic behavior at all times. Smooth inputs, longer following distances, and conservative cruising speeds are part of driving a collector Oldsmobile well. If the car is newly restored or newly fitted with tires, build speed gradually as you evaluate how it tracks and rides.