1978 Nissan Tire Fitment Guide

1978 Nissan vehicles use fourteen distinct tire sizes across nine model lines: 175/70R13 for the 200 and 210; 155R13 and 6.15-13 for the 210 and F10; 195/70R14 for the 280Z; 165R13 and 6.45-13 for the 510 and PL610; 185R14, 700-14, G78-15, and 195R14 for the 720 Pickup; 185/70R14 for the 810; 165/70R13 for the F10; and GR78-15 plus E78-14 for the Pickup. Rim diameters span 13, 14, and 15 inches, so there is no one-size answer for the year and make as a whole.

That means year and make alone are not enough when you are choosing tires for a 1978 Nissan. Start by identifying the exact model, then match the tire size to the wheel diameter already on the car or truck. Where a model carries both radial and bias-ply options, the choice often reflects how original you want the vehicle to feel and appear rather than simply whether a tire will mount.

On a 1978 Nissan, 155R13 is a euro-metric radial size. The 155 is the section width in millimeters, the R identifies radial construction, and the 13 is the wheel diameter in inches. Because no aspect ratio is written into the size itself, this format is conventionally treated as an 80-series radial. On 1978 Nissan applications, 155R13 belongs to the 210 and F10.

That size is very different from a numeric bias-ply code such as 6.15-13 even though both fit 13-inch wheels. If your 210 or F10 has a radial-oriented setup and you want to stay in that lane, 155R13 keeps you in the correct sizing language for a late-1970s import compact. Check the sidewall marking on the exact tire you choose, because some 155R13 products are marked TL while others are not.

No, 1978 Nissan models do not use the same tire size. The 200 and 210 share 175/70R13, the 210 and F10 share 155R13 and 6.15-13, the 510 and PL610 share 165R13 and 6.45-13, the 280Z stands alone on 195/70R14, the 810 stands alone on 185/70R14, the 720 Pickup spans four sizes, and the Pickup uses either GR78-15 or E78-14. The fitment spread crosses three rim diameters and multiple sizing systems.

For buyers, that means the exact model is the first checkpoint, not a detail to verify later. A 1978 Nissan passenger car and a 1978 Nissan pickup can be dramatically different in both construction type and wheel diameter, and even closely related compact models may split between radial and bias-ply options. Once the model is nailed down, compare the tire already on the vehicle and the wheel diameter before making a final choice.

That depends on which 1978 Nissan model you own and what direction you want the vehicle to take. Several models, including the 210, F10, 510, PL610, 720 Pickup, and Pickup, appear in both radial and bias-ply sizing families, while others such as the 280Z and 810 stay radial only. Radial sizes on this year range from small euro-metric passenger-car fitments to sport-oriented 195/70R14, while bias-ply choices include numeric and alphanumeric truck and compact-car sizes.

Bias-ply usually makes the most sense when appearance, stance, and period feel matter most, especially on a restoration or show-focused vehicle. Radials generally make more sense when the car or truck sees regular road use and you want to stay within a more modern late-1970s tire construction. The key is to choose within the size family that matches your model and wheel diameter instead of treating radial and bias-ply sizes as universal swaps.

1978 Nissan tire choices include Blackwall, Narrow Whitewall, and Wide Whitewall sidewall styles, depending on size. Blackwall appears across the passenger-car radial sizes such as 175/70R13, 155R13, 165R13, 195/70R14, and much of the 185/70R14 range, while Narrow Whitewall appears in 185R14 and 700-14. Wide Whitewall is seen in truck and specialty sizes such as G78-15, E78-14, and one 185/70R14 radial option.

For most 1978 Nissan compact cars and sports cars, Blackwall is the most natural visual fit for a factory-style presentation. Whitewall treatments are more likely to suit custom builds, upscale personal taste, or truck applications where period accessories and appearance packages were part of the character. Sidewall style does not change the basic size, but it can change the car's visual era dramatically, so it is worth deciding that before narrowing to a particular product.

1978 Nissan tire coverage includes Avon, Michelin, Dunlop, BFGoodrich, Phoenix, Vredestein, Coker Classic, and STA. Avon appears in 175/70R13 and 185/70R14, Michelin in 155R13, 165R13, 185R14, and 185/70R14, Dunlop in 155R13, 165R13, 195/70R14, and 185/70R14, BFGoodrich in 700-14 and 185/70R14, Phoenix and Vredestein in 185R14, and Coker Classic plus STA in G78-15 and E78-14.

The practical takeaway is that brand choice depends heavily on the exact size your 1978 Nissan uses. Sporting passenger-car sizes lean toward European-style radial offerings, while bias-ply truck sizes open the door to brands with a stronger vintage American and specialty-truck presence. Once you know the size, compare construction, sidewall style, and any load or speed marking that matters for how your Nissan will actually be driven.

Rim width depends on the exact tire size used on the 1978 Nissan. 175/70R13 fits 4.5 to 6.0-inch rims; 155R13 fits 4.00 to 5.50 inches where specified; 165R13 fits 4.50 to 6.00 inches; 185R14 fits roughly 4.00 to 6.50 inches depending on the product; 700-14 fits 5.00 to 5.50 inches; G78-15 fits 5.00 to 7.00 inches; 185/70R14 fits roughly 4.5 to 6.5 inches depending on the product; and E78-14 spans 4.50 to 7.00 inches depending on the version.

That spread is wide enough that rim width should be verified against the actual wheel before ordering, especially on trucks and on cars that may have been changed from bias-ply to radial over the years. Two tires can share the same rim diameter and still want different wheel widths. Measure the wheel if there is any doubt, and match it to the exact tire you are considering rather than assuming every tire in the same diameter behaves the same way.

Inner-tube requirements on 1978 Nissan tires vary by size and by product. Some radial passenger-car sizes such as 155R13, 165R13, 185R14, and 185/70R14 include products marked TL, which indicates tubeless construction. E78-14 includes one STA product explicitly marked tubeless as well. Other products in those same size families do not always carry the same marking, so tube status can vary within a single size rather than staying uniform across every tire offered in it.

The wheel itself matters just as much as the tire marking. An older wheel design, a riveted wheel, or a rim with sealing concerns can still change the setup even if the tire is tubeless by design. Check the sidewall marking on the exact tire, inspect the wheel condition carefully, and use a tube only when the tire manufacturer and wheel type call for it. That approach prevents unnecessary assumptions on mixed-era restorations.

Not always. Some 1978 Nissan models stay within one wheel diameter while offering both radial and bias-ply sizes, but others change wheel diameter between tire options. The 210, F10, 510, and PL610 remain in 13-inch sizes, which simplifies wheel compatibility at the diameter level. The 720 Pickup uses both 14-inch and 15-inch sizes, and the Pickup uses both E78-14 and GR78-15, so those cannot be treated as interchangeable on the same wheel.

Even when the diameter matches, original-wheel use still depends on width and condition. A 13-inch wheel may accept more than one 13-inch tire size, but the tire still needs the right rim-width range for safe mounting and proper shape. On the truck side, verify the stamped wheel diameter first before comparing any 14-inch and 15-inch choices. That one check eliminates the most common fitment mistake on mixed-size Nissan pickups.

A 1978 Nissan should be stored in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, furnaces, and other ozone-producing equipment. Keep the tires properly inflated, roll the vehicle periodically if practical, and avoid letting it sit for long stretches on damp ground. Bias-ply tires such as 6.15-13, 6.45-13, 700-14, G78-15, and E78-14 are more prone to temporary flat-spotting during long static storage than radial designs.

If the car or truck will sit for months at a time, storage cradles or stands can help reduce stress on the carcass, especially on lighter collector vehicles that rarely get driven long enough to warm the tires fully. Clean the tires with mild soap and water only, not gloss dressings that can mask cracking. Good storage habits matter as much as tread depth on a collector Nissan because age and environment usually end a tire's life before mileage does.

Tires on a 1978 Nissan should be judged primarily by age and condition rather than mileage. A collector vehicle can still wear old tires that look presentable because it sees limited use, but rubber compounds age even when tread remains deep. As a rule, begin evaluating vintage-vehicle tires closely once they reach about five to seven years of age, and treat ten years as a point where replacement deserves serious consideration regardless of remaining tread.

Check the DOT date code on modern production tires and keep a record of installation dates if the car is maintained as part of a collection. Exposure to heat, sunlight, underinflation, and long idle periods can shorten life further. A 1978 Nissan driven occasionally to shows or weekend events may age out its tires long before it wears them out, so a calendar-based inspection habit is more reliable than waiting for tread wear alone.

Tires on a 1978 Nissan should be inspected before every drive, and they deserve an especially careful look before highway use or any longer outing. Check inflation, sidewall cracking, tread wear, cuts, bulges, and signs that the tire has been run underinflated. On sizes that may involve tube-type or mixed tube-status products, inspect valve stems and watch for slow pressure loss that could point to tube, stem, or wheel-sealing issues.

That quick inspection is particularly important on collector cars because they often spend long intervals parked, which can hide a problem until the next outing. A tire that looked fine at the last event can develop weather checking, lose pressure, or settle into a flat spot over time. Make the inspection part of the same routine as checking fluids and brakes, and include the spare if the car or truck still carries one for road use.

For a 1978 Nissan 210, the period fitment picture includes both radial and bias-ply sizing families, with 175/70R13, 155R13, and 6.15-13 all associated with the model. By 1978, radial tires were well established in Japanese small cars for the U.S. market, but bias-ply sizing still appears in restoration-oriented fitment references for some applications. That means original-equipment character can depend on market, trim, wheel package, and how the individual car was built or sold.

If authenticity is the goal, start by inspecting the car's existing wheels, surviving decals, manuals, or period photographs, then cross-check with Nissan marque clubs and model-specific registries. The 6.15-13 route will usually read as more period-traditional, while 155R13 and 175/70R13 place the car more firmly in late-1970s radial territory. The correct answer for a judged restoration can be narrower than the broad year-and-make fitment picture, so model-specific confirmation is worthwhile.

Yes, correct tire fitment matters on a 1978 Nissan whenever originality or marque-judged presentation is part of the goal. Judges and knowledgeable enthusiasts often notice whether the tire has the right overall size family, the correct construction type for the era, and a sidewall style that matches the vehicle's market position. A blackwall radial on a 280Z reads differently than a wide whitewall bias-ply on a pickup, and those visual cues can affect how authentic the vehicle appears.

The closer the event is to concours standards, the more important it becomes to match size, construction, and sidewall appearance to the way the car or truck would have been understood in period. A modern-looking radial on a restoration that should visually present as bias-ply can stand out immediately, even if it physically fits the wheel. Event standards vary, so confirm expectations with the specific club or judging body before choosing a tire solely for show use.

For a 1978 Nissan 720 Pickup in 185R14, Michelin MXV and Vredestein Sprint Classic are both radial choices, but they are not identical in presentation or specification. Michelin MXV appears in both Blackwall and Narrow Whitewall forms with rim-width ranges up to 6.5 inches depending on the version, while Vredestein Sprint Classic comes as a Blackwall with a 4.5 to 6.0-inch rim-width range. Vredestein also carries a stated 1,323-pound load capacity at 51 psi and an H speed rating.

That means the decision may come down to appearance and wheel match as much as brand preference. If your 720 Pickup needs a whitewall look, Michelin opens that door within the same size. If your wheel width sits at the narrower end of the range and you prefer a European-style Blackwall presentation, the Vredestein has a more tightly defined fit window. Compare your actual wheel width and the look you want before settling on one over the other.

1978 Nissan tires can be appropriate for highway driving when the size, load capacity, speed rating, wheel condition, and overall mechanical condition of the vehicle all line up correctly. Several radial sizes for 1978 Nissan carry H ratings to 130 mph, such as 155R13, 165R13, 185R14, and many 185/70R14 choices, while 195/70R14 and one 185/70R14 version carry V ratings to 149 mph. Bias-ply truck and restoration sizes do not always carry a speed letter and should be approached with the expectations appropriate to vintage construction.

In real-world use, the vehicle itself is often the limiting factor long before a properly matched tire reaches its rated ceiling. A 1978 compact car or pickup may have brakes, steering, suspension, and aerodynamics that call for a more measured highway pace than the tire's sidewall alone might suggest. Treat the tire as one part of the whole package, keep it inflated correctly, and avoid assuming that a high speed rating overrides the realities of a late-1970s chassis.

Inflation pressure for a 1978 Nissan should start with the vehicle manufacturer's recommendation for the exact model and then be checked against the tire's own markings and load information. Several 1978 Nissan tire sizes carry load-and-pressure pairings, including 185R14 at 1,323 pounds at either 35 psi or 51 psi depending on product, 700-14 at 1,360 pounds at 32 psi, G78-15 at 1,620 pounds at 32 psi, 185/70R14 at 1,201 pounds at 35 psi on one product, and E78-14 at figures ranging from 1,400 pounds at 32 psi to 1,710 pounds at 60 psi on a heavy-duty version.

Those numbers are tire capacity references, not blanket inflation recommendations to apply across every 1978 Nissan. A compact sedan, sports car, and pickup should not all be inflated by the same rule just because they share part of a rim diameter or era. Use the owner's manual or factory placard as the baseline for the vehicle, then make sure the tire itself is suitable for that application. Never transfer a pressure figure from one size to another without checking the exact tire.

Before taking a 1978 Nissan on a longer drive, inspect each tire for cracking, cuts, bulges, irregular wear, and proper inflation, then check that the valve stems are sound and the spare is usable. On sizes that may be tube-type or mixed in tube status, pay special attention to slow leaks and valve condition. A close look at tread depth, bead area, and the age of the tire matters more on a lightly used collector car than on a modern daily driver that gets constant service.

Tire condition is only one part of the pre-trip check on a vehicle of this age. Brakes, cooling system, belts, hoses, wheel bearings, and suspension deserve equal attention, especially on pickups and cars that have sat between outings. A 1978 Nissan in good tune can be very enjoyable on a longer run, but success comes from treating the tire inspection as part of a complete road-readiness check rather than as a separate concern.