Pontiac Streamliner Tires

Pontiac Streamliner uses two listed tire sizes across its 1946 to 1947 run. The 1946 Pontiac Streamliner is paired with 6.50-15, which fits a 15-inch wheel. The 1947 Pontiac Streamliner is paired with 650-16, which fits a 16-inch wheel. Current product coverage in this group appears under 650-16, with 16-inch applications represented by multiple bias-ply choices.

The practical takeaway is that year alone is a strong guide here, but the wheel on the car still matters most. Many collector cars have had wheels changed over the decades, so measure the rim diameter directly and compare it with any original paperwork or restoration records. Once the wheel diameter is confirmed, you can narrow the choice further by sidewall style and whether you want a standard passenger-car look or a heavier-duty tread pattern.

A 650-16 Pontiac Streamliner tire uses an older numeric bias-ply size format. The 650 figure represents a nominal section width of about 6.50 inches, written without a modern decimal style, and the 16 indicates a 16-inch rim diameter. Every current product in this size for Pontiac Streamliner is bias-ply, with most examples built around 16-inch rims and commonly paired with 4.50 to 5.00 inch wheel widths.

That matters because modern buyers often read the code as if it were a later metric or radial size, and it is neither. A 650-16 Pontiac Streamliner tire should be chosen when the car has the correct 16-inch wheels, especially for 1947 fitment. If you are restoring the car for an authentic postwar appearance, this size also lets you choose among blackwall and wide whitewall versions rather than forcing a later-style radial look.

Pontiac Streamliner uses two different rim diameters across the years covered here. The 1946 Pontiac Streamliner is associated with a 15-inch fitment through size 6.50-15, while the 1947 Pontiac Streamliner uses size 650-16 on a 16-inch rim. That year-to-year change is the most important fitment difference in this model group because the tire size families are tied directly to different wheel diameters.

Wheel diameter should be checked on the actual car before you go further, especially if the vehicle has been restored, modified, or stored with mixed parts. A car wearing 16-inch tires cannot use the 15-inch size, and the reverse is equally true. Verifying the rim first prevents confusion when a Pontiac Streamliner has parts swapped from another year or from related period vehicles.

Pontiac Streamliner fitment in the sizes listed here is primarily bias-ply, and the period-correct passenger-car choices follow the traditional tube-type approach. The 650-16 size is offered overwhelmingly as bias-ply, and that style normally uses an inner tube unless a product is specifically identified otherwise. One heavier-duty 650-16 product is marked tubeless, but that is a truck-oriented entry rather than the mainstream passenger-car Pontiac Streamliner choice.

If you are aiming for authentic postwar fitment, plan around tube use and make sure the wheel condition supports it. Rust, rough bead seats, and old rim strips can create problems even with brand-new tires. On a Pontiac Streamliner that is driven only occasionally, the extra step of checking tube, flap, and wheel condition together is well worth it before the tires ever see road use.

Start with the model year, because Pontiac Streamliner changes size across this short production span. A 1946 Pontiac Streamliner is listed with 6.50-15, while a 1947 Pontiac Streamliner is listed with 650-16. After that, verify the wheel diameter on the car itself, since a restoration or older repair work may have introduced a different wheel set than the one the car originally carried.

Once the wheel diameter is settled, compare the tire sidewall code, inspect the wheels for width and condition, and decide whether you want a blackwall or wide whitewall appearance where that choice exists. If your Pontiac Streamliner is a preservation car, old registration cards, build records, and marque references can help settle borderline cases. Getting the wheel right first is more important than choosing a tread or whitewall style too early.

Pontiac Streamliner tires in the available 650-16 offerings include both blackwall and wide whitewall styles. Blackwall choices appear from several brands, while wide whitewall versions include options with whitewall widths such as 2.50 inch, 3.00 inch, 3.75 inch, and 4.00 inch. That gives a restorer room to match a restrained driver-style appearance or a fuller postwar wide-white presentation depending on the car's finish and restoration goal.

Sidewall style changes the visual character of a Pontiac Streamliner more than many buyers expect, especially on cars with full wheel covers and broad fenders. Blackwalls usually suit a simpler, workaday presentation, while wide whitewalls lean toward a more formal late-1940s look. If originality matters, compare the desired sidewall width with factory literature, period photos, and judging standards rather than assuming any whitewall width is equally appropriate.

Pontiac Streamliner tires in the available 650-16 group come from BFGoodrich, Coker Classic, Firestone, Garfield, Excelsior, Lester, Goodyear, STA, and Tornel. Those brands cover several visual and functional directions, from passenger-car blackwalls and wide whitewalls to military and truck-oriented tread patterns. The selection is broad enough to let a Pontiac Streamliner owner prioritize period style, tread appearance, or heavier-duty construction within the same basic size.

Brand choice on a collector car often comes down to how the car will be used and how closely you want the tire to match a period look. A show-focused Pontiac Streamliner may lean toward a classic passenger-car whitewall or blackwall, while a utility-minded project might consider one of the tougher 650-16 truck-style options. Keep the intended use clear before comparing brands so you do not end up choosing a tread that looks out of character on the finished car.

Pontiac Streamliner 650-16 offerings span several series, including Silvertown Classic Bias Ply, Coker Classic Bias Ply, Firestone Classic Bias Ply, Garfield Classic Bias Ply, Lester Classic Bias Ply, Excelsior Bias Ply, Deluxe All-Weather, Transport, STA Classic Military, Super Traxion, Transport Highway, Tornel Classic Truck, and Firestone Classic Truck. Most of these are bias-ply, but they divide into traditional passenger-car tires and heavier-duty military or truck-oriented patterns. The difference is less about raw size than about appearance, tread style, and intended service character.

For a typical Pontiac Streamliner restoration, the classic passenger-car series are usually the most natural visual match. Truck and military series can share the same 650-16 size, yet they often bring a more aggressive or utilitarian tread that suits a different kind of vehicle or use case. Matching the series to the personality of the car keeps the finished Pontiac Streamliner from looking over-tired or under-dressed.

Pontiac Streamliner should be stored in a cool, dry, dark space with clean tires and properly adjusted inflation. Keep the car away from direct sunlight, electric motors, welders, and ozone-producing equipment, all of which can age rubber more quickly. If the car will sit for a long period, moving it slightly from time to time or supporting it to reduce prolonged flat spotting can help preserve the casing shape.

Collector cars often spend far more time parked than driven, so storage habits matter as much as mileage. A Pontiac Streamliner that is left on damp concrete, overloaded, or parked for seasons without attention will age its tires faster than a regularly inspected car. Good storage conditions also protect the tubes, wheel finishes, and sidewalls that are part of the car's overall presentation.

Tires on a Pontiac Streamliner should be inspected before each drive and more thoroughly at regular intervals even if the car sees very little mileage. Look for sidewall cracking, tread separation, air loss, uneven wear, damage around the bead, and signs that the tube or wheel condition may be affecting the tire. Bias-ply collector tires reward frequent visual checks because age and storage can matter as much as road wear.

A pre-drive walkaround is especially important on a Pontiac Streamliner that may sit for weeks between outings. Collector cars can lose pressure slowly, develop flat spotting, or show age-related cracking long before the tread appears worn out. Catching those issues early protects the wheel, preserves the tire, and reduces the chances of discovering a problem only after the car is already on the road.

Pontiac Streamliner tires should be replaced when age, cracking, hardening, separation, impact damage, or persistent air-loss issues appear, even if the tread still looks usable. Collector tires often age out before they wear out because the car is driven lightly and stored for long periods. Any tire that shows structural concerns, repeated pressure loss, or visible deterioration deserves prompt evaluation and replacement rather than continued service.

Tread depth alone is a poor guide on an intermittently driven Pontiac Streamliner. A car that only attends cruises and shows may still be riding on tires that are no longer trustworthy because the rubber has simply become old. Replacement decisions should be made with the same seriousness you would apply to brake or steering parts, since tire failure on a heavy postwar car can become a major event very quickly.

Pontiac Streamliner is associated here with 6.50-15 for 1946 and 650-16 for 1947, which establishes the period size path for each year. The available replacement lines are overwhelmingly classic bias-ply products, including both blackwall and wide whitewall presentations in 650-16. That points restorers toward a traditional postwar tire type rather than a later radial format, while still leaving room for visual choices within the correct general construction family.

Originality questions beyond basic size and construction should be settled with Pontiac literature, surviving factory material, and marque club guidance. A Pontiac Streamliner judged at a high level may need the right combination of size, sidewall treatment, and tread character rather than only the right rim diameter. Getting those details right helps the tire support the restoration instead of becoming a visible compromise.

Correct tire fitment absolutely affects how a Pontiac Streamliner is perceived in both restoration judging and the broader collector market. Size, wheel diameter, sidewall treatment, and overall stance all contribute to whether the car looks properly sorted for its year. A Pontiac Streamliner wearing the wrong diameter tire or an obviously out-of-era tread can distract from otherwise strong body, paint, and trim work.

Buyers and judges notice tires because they frame the entire car visually and influence how it sits on the road. Matching the Pontiac Streamliner to the proper year-specific size and an era-appropriate sidewall style usually presents better than choosing whatever happens to fit the wheel opening. If authenticity matters, use marque clubs and period photography to refine the final decision after the basic fitment is confirmed.

Pontiac Streamliner tires in the available 650-16 selection come in both blackwall and wide whitewall form, and each can be appropriate depending on the restoration goal. The wide whitewall choices range from narrower 2.50-inch treatments to fuller 4.00-inch presentations, while blackwalls provide a more restrained appearance. Both styles belong comfortably in the late-1940s conversation, but the exact look should match the trim level, presentation style, and historical reference for the car.

A formal restoration often benefits from comparing the Pontiac Streamliner to period advertising, showroom photography, and club judging references rather than choosing whitewall width by preference alone. Whitewall proportion can dramatically change the car's visual balance, especially on postwar Pontiacs with generous body surfaces. The right sidewall style should look intentional with the paint, wheel covers, and ride height rather than standing apart from them.

A Pontiac Streamliner can be driven on public roads with properly selected, properly mounted, and well-maintained tires that match the wheel diameter and intended use. The mainstream offerings here are bias-ply tires, which are appropriate for a period-correct driving experience when the rest of the chassis is equally sound. Safety depends on the complete condition of the car, including wheels, tubes where applicable, steering components, brakes, alignment, and inflation discipline.

A newly fitted tire does not make an otherwise neglected Pontiac Streamliner road-ready by itself. Before regular road use, inspect the whole chassis and make sure the tire choice matches the way the car will actually be driven. Passenger-car bias-ply tires are the natural fit for most restorations, while heavier-duty truck-pattern options should be chosen only when their tread style and service character truly suit the vehicle.

Before driving a Pontiac Streamliner, check inflation pressure, visual condition of the sidewalls and tread, wheel fasteners, valve stems, and any signs of bead or tube trouble. Look for cracking, bulges, impact damage, or unusual wear that might suggest an alignment or suspension issue. On a bias-ply-equipped Pontiac Streamliner, it is also wise to check that the car has not developed flat spots or lost pressure during storage.

A careful pre-drive routine is especially valuable on collector cars because they often sit longer than modern daily drivers. The first few miles should be taken gently while the tires warm and the car settles after storage. If the Pontiac Streamliner pulls, vibrates, wanders excessively, or feels unstable, stop and inspect it rather than assuming the behavior is simply part of old-car driving.

A Pontiac Streamliner running period-style bias-ply tires should be driven at moderate, sensible speeds that suit the age of the chassis, the condition of the car, and the road surface. These tires are chosen primarily to preserve proper appearance and period road manners, not to mimic the high-speed stability of a modern radial touring tire. Even when new, a bias-ply-equipped late-1940s car asks for more respect in steering response, braking distance, and heat management.

The best approach is to let the car, the road, and the mechanical condition set the pace rather than trying to force modern driving habits onto a postwar Pontiac. Smooth inputs and moderate cruising speeds will do more for safety and tire life than any cosmetic choice ever will. If a Pontiac Streamliner will be used regularly in faster traffic, have the entire suspension and steering system evaluated with that use in mind.