The 1963 Oldsmobile F85 came at a moment when Detroit compacts were becoming more distinctive, blending smaller overall dimensions with the styling and comfort buyers still expected from a full-line American brand. That makes tire choice on this car more involved than it first appears, because the 1963 Oldsmobile F85 uses several primary bias-ply sizes depending on sub-model and wheel setup: 6.50-14, 600-15, 650-13, and, on some Wagon applications, 700-13. Available options include blackwall, narrow whitewall, and wide whitewall treatments, and several sizes also have modern radial equivalents. The right selection starts with confirming the exact sub-model and wheel diameter before deciding how original or road-oriented the finished car should feel.
Which Tire Size Is Right for The 1963 Oldsmobile F85
The 1963 Oldsmobile F85 uses four primary tire sizes, and they do not all share the same wheel diameter. Fitment varies by sub-model, with the Wagon carrying the broadest range of sizes, so the first step is confirming both the exact F85 sub-model and whether the car is on 13-inch, 14-inch, or 15-inch wheels. From there, the decision becomes choosing the right bias-ply size and sidewall style, or evaluating a radial equivalent where one exists.
The 600-15 designation is a numeric bias-ply size in which 6.00 represents the nominal section width and 15 identifies the wheel diameter. For a 1963 Oldsmobile F85 using this fitment, the tire choice stays rooted in traditional bias-ply construction, but there is still room to tailor the look through BFGoodrich options in both blackwall and wide whitewall form within the Silvertown Classic Bias Ply line. This size also has several radial equivalents, making it one of the more flexible choices for an owner balancing period-style appearance with modern road-use considerations.
The 700-13 code indicates a numeric bias-ply tire with a nominal 7.00-inch section width for a 13-inch wheel. Within the 1963 Oldsmobile F85 range, this size is more specialized and is associated with Wagon fitment rather than the entire model line, so it should not be treated as a universal choice. Firestone offers this size in a classic bias-ply series with a whitewall presentation, giving Wagon owners a traditional look that still matches the car's early-1960s character. Because it is sub-model specific, this size should be chosen only after confirming the vehicle's exact configuration and wheel setup.
Sub-model fitment on the 1963 Oldsmobile F85 is not completely uniform, even though several sizes overlap across the range. Checking whether the car is a Base, Convertible & Jetfires, or Wagon matters because the Wagon includes an additional tire-size possibility that does not apply across the board.
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1963 Oldsmobile F85 Base
The 1963 Oldsmobile F85 Base uses bias-ply tire fitments in 6.50-14, 600-15, and 650-13 depending on wheel choice. That makes wheel-diameter confirmation the first step, followed by selecting the sidewall look and, where available, deciding whether to stay with a traditional bias-ply tire or consider a radial equivalent.
The 1963 Oldsmobile F85 Convertible & Jetfires share the same three primary bias-ply tire sizes as the Base model: 6.50-14, 600-15, and 650-13. Tire selection therefore centers on verifying which wheel diameter is actually on the car and then choosing between restoration-oriented bias-ply styling and radial-equivalent alternatives where they are offered.
The 1963 Oldsmobile F85 Wagon has the widest fitment spread, using the same 6.50-14, 600-15, and 650-13 options found elsewhere in the line while also adding 700-13. That extra size makes sub-model confirmation especially important, and Wagon owners should verify both wheel diameter and intended appearance before narrowing the tire choice.
Bias-Ply to Radial Tire Conversion for the 1963 Oldsmobile F85
The 1963 Oldsmobile F85 has radial-equivalent choices for three primary tire sizes. For 600-15, the available alternatives are 165R15 as an 80-series metric radial, P165/75R15 as a 75-series P-metric radial, and P175/70R15 as a 70-series P-metric radial, with a recommended rim-width range of 4-5 inches. For 650-13, the options are 175R13, P175/75R13, P185/70R13, and 650R13 as a bias-look radial, with a 4-6 inch rim-width range. For 700-13, 185R13, P185/75R13, and P205/70R13 provide the same progression, also on a 4-6 inch recommended rim-width range, and all should be checked against wheel compatibility and vehicle clearance.
Modern Radial Equivalents
165R15
Equivalent 80-series Metric Radial (600-15)
P165/75R15
Equivalent P-metric 75-series Radial (600-15)
P175/70R15
Equivalent P-metric 70-series Radial (600-15)
175R13
Equivalent 80-series Metric Radial (650-13)
P175/75R13
Equivalent P-metric 75-series Radial (650-13)
P185/70R13
Equivalent P-metric 70-series Radial (650-13)
650R13
Bias-look Radial Equivalent (650-13)
185R13
Equivalent 80-series Metric Radial (700-13)
P185/75R13
Equivalent P-metric 75-series Radial (700-13)
P205/70R13
Equivalent P-metric 70-series Radial (700-13)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-6 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1963 Oldsmobile F85 Tires for Sale
Available 1963 Oldsmobile F85 tires focus on traditional bias-ply choices across 600-15, 650-13, and 700-13. The product mix includes BFGoodrich, Coker Classic, US Royal, and Firestone, with classic series offerings and sidewall treatments that range from blackwall to narrow and wide whitewall.
Common 1963 Oldsmobile F85 tire questions usually come down to size by sub-model, wheel diameter, bias-ply versus radial-equivalent choices, sidewall appearance, and the checks worth making before putting a restored or lightly driven car back on the road.
Tire Size & Fitment
What tire size fits a 1963 Oldsmobile F85?
A 1963 Oldsmobile F85 can use 6.50-14, 600-15, 650-13, or 700-13, all in bias-ply construction. The full-size spread depends on sub-model and wheel setup, with Base and Convertible & Jetfires using 6.50-14, 600-15, and 650-13, while the Wagon adds 700-13 as an additional fitment.
That means the right tire is determined first by the exact sub-model and, just as importantly, by the wheel diameter actually on the car. Since this F85 family spans 13-inch, 14-inch, and 15-inch applications, the safest starting point is to inspect the wheels already installed before choosing a tire by size, sidewall style, or radial-equivalent availability.
What size rim does a 1963 Oldsmobile F85 use?
The 1963 Oldsmobile F85 appears with more than one rim diameter, depending on tire size. The fitments here cover 13-inch wheels for 650-13 and 700-13 tires, 14-inch wheels for 6.50-14, and 15-inch wheels for 600-15.
Because three different rim diameters are in play, wheel confirmation should happen before anything else. An F85 that has been restored, modified, or simply had wheels changed over the years may not still match its original-era setup, so checking the wheel itself prevents choosing a tire size that looks right on paper but does not match the car's actual wheel diameter.
Do all 1963 Oldsmobile F85 sub-models use the same tire size?
No. The 1963 Oldsmobile F85 Base and Convertible & Jetfires share 6.50-14, 600-15, and 650-13 bias-ply fitments, while the Wagon uses those same sizes and also includes 700-13. The overall fitment picture is therefore similar across the line, but not identical.
That extra Wagon size matters because it changes both wheel-diameter possibilities and product availability. Anyone choosing tires for an F85 should match the vehicle to its specific sub-model first, then confirm the wheel diameter on the car, and only after that compare sidewall appearance, brand options, and any modern radial-equivalent alternatives tied to that size.
Bias-Ply & Radial Options
Is 600-15 a bias-ply or radial tire for the 1963 Oldsmobile F85?
For the 1963 Oldsmobile F85, 600-15 is a primary bias-ply tire size. It is one of the original-era fitments used on a 15-inch wheel, and the available 600-15 product choices stay within traditional bias-ply construction rather than changing the car's primary tire type.
Radial alternatives do exist for owners considering a different construction, but they should be treated as equivalents rather than the base fitment. A buyer looking at 600-15 should first decide whether the goal is to preserve a period-style driving and visual character or to explore a radial option after checking wheel width, overall setup, and clearance on the specific car.
What radial tire sizes are equivalent to 600-15 on a 1963 Oldsmobile F85?
Radial equivalents for 600-15 on a 1963 Oldsmobile F85 include 165R15 as an 80-series metric radial, P165/75R15 as a 75-series P-metric radial, and P175/70R15 as a 70-series P-metric radial. The recommended rim-width range associated with these equivalents is 4-5 inches.
Those options give the owner several ways to compare radial sizing conventions while staying in the same 15-inch wheel category. The differences are mainly in format and profile family, so the next step is checking the actual wheel width on the car and making sure the chosen equivalent works with the F85's available space at the fender and steering points.
Can I use a bias-look radial on a 1963 Oldsmobile F85?
A bias-look radial equivalent is available for the 1963 Oldsmobile F85 in 650-13 size, where 650R13 can be considered as an alternative to the primary 650-13 bias-ply fitment. That makes it a useful option for an owner who wants a more traditional visual presentation without staying strictly with bias-ply construction.
Even with that familiar appearance, 650R13 should still be evaluated as a radial equivalent rather than assumed to interchange automatically. The wheel diameter remains 13 inches, but wheel width, overall compatibility, and clearance around suspension and bodywork should be checked carefully, especially on a car that may no longer be on its original wheels or ride height.
Choosing the Right Tire
What should I consider when choosing a tire for a 1963 Oldsmobile F85?
Start with the basics that matter most on a 1963 Oldsmobile F85: the exact sub-model, the wheel diameter on the car, and the correct primary tire size. From there, the choice usually becomes one of construction style and appearance, since the F85 uses bias-ply fitments and some sizes also open the door to radial-equivalent alternatives.
Once the size is settled, compare the details that affect how the car will look and be used. Sidewall style, brand, tire series, and wheel-width compatibility can all shape the final decision, especially on a restoration or weekend driver where the owner may be balancing vintage presentation, road manners, and the need to stay true to the wheel setup already in place.
What sidewall styles are available for 1963 Oldsmobile F85 tires?
Available sidewall styles for 1963 Oldsmobile F85 tires include blackwall, narrow whitewall, and wide whitewall, depending on the size selected. The broadest visible variety appears in 650-13, while 600-15 includes blackwall and wide whitewall choices, and 700-13 is offered with a whitewall presentation.
That sidewall decision can noticeably change the character of the car, even when the tire size stays the same. Buyers aiming for a restrained look may lean toward blackwall, while a brighter restoration-oriented appearance often points toward whitewall options. Since sidewall availability varies by size, the correct approach is to confirm fitment first and then compare the visual choices within that size.
What brands offer tires for the 1963 Oldsmobile F85?
Tires for the 1963 Oldsmobile F85 are available from BFGoodrich, Coker Classic, US Royal, and Firestone across the supported sizes shown here. Brand availability depends on the tire size, with BFGoodrich appearing in 600-15, Coker Classic and US Royal in 650-13, and Firestone in 700-13.
That means brand comparison starts after the tire size has been narrowed down, not before. A buyer choosing among these options should look at the tire series, sidewall treatment, and wheel-width specification tied to the correct size, then decide which combination best suits the intended use of the F85, whether that is a more formal restoration look or regular collector-car road use.
Restoration & Appearance
Which tire should I choose for a period-style 1963 Oldsmobile F85?
A period-style 1963 Oldsmobile F85 tire choice starts with the correct primary bias-ply size for the car's sub-model and wheel diameter. Once that is established, the most appropriate direction is usually a traditional bias-ply tire in the proper size, with the final look shaped by whether the car suits blackwall, narrow whitewall, or wide whitewall treatment.
Because appearance preferences can vary by restoration goal, the right answer is not always the same for every F85. Some owners want a clean driver presentation, while others are chasing a more era-specific visual balance. When exact originality matters, vehicle-specific historical references and marque resources are worth consulting before choosing a sidewall style simply because it is available.
How does tire construction affect the appearance of a restored 1963 Oldsmobile F85?
On a restored 1963 Oldsmobile F85, tire construction affects both stance and visual character. A bias-ply tire preserves the traditional construction used across the primary fitments, which tends to align more naturally with an early-1960s presentation, while a radial equivalent can change the overall impression even when the wheel diameter remains the same.
That does not make one construction universally right or wrong; it depends on the goal for the car. An owner focused on period-style appearance often begins with the original bias-ply size, while someone who plans to drive the car more regularly may also compare radial equivalents where available. The best result comes from treating construction as part of the restoration story, not just a specification.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1963 Oldsmobile F85?
Yes, modifications can affect tire fitment on a 1963 Oldsmobile F85 even when the tire size itself is correct for the model range. Changes such as aftermarket wheels, different wheel widths, altered offset, suspension work, or ride-height changes can influence how much room the tire has at the fenders, steering components, and body openings.
That is especially important on an F85 because the car already spans multiple wheel diameters and tire sizes. A modified example should be measured from the wheel outward rather than assumed to match a stock setup. Verifying wheel diameter, wheel width, and clearance through the steering range helps prevent selecting a tire that is correct in size code but incompatible with the car's current configuration.
What should I inspect before driving a 1963 Oldsmobile F85 on new tires?
Before driving a 1963 Oldsmobile F85 on new tires, inspect the wheels for correct diameter and sound condition, confirm that the tires are properly mounted, and make sure inflation is appropriate for the tire being used. It is also smart to check that the tires clear the fenders and suspension throughout steering travel.
A collector car deserves a broader once-over before returning to the road. Look for worn suspension parts, brake issues, uneven wheel fitment, and anything that might cause rubbing or unstable behavior once the car is moving. After the first short drive, recheck air pressure and inspect the tires again so any clearance or seating issues can be caught early.
How should tires on a collector 1963 Oldsmobile F85 be maintained?
Tires on a collector 1963 Oldsmobile F85 should be maintained with regular pressure checks, visual inspections, and careful storage habits. Even a lightly used car can develop tire problems over time, so sidewall cracking, flat spotting, cuts, bulges, uneven wear, and slow air loss all deserve attention whether the car is driven often or only seasonally.
Storage conditions matter as much as mileage on a vintage car. Keeping the F85 away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve the tires between drives, and moving the car occasionally can reduce long-term stress on one contact patch. A quick inspection before every outing is a good routine, especially before a longer drive.