2013 Buick Trucks Tire Fitment Guide

2013 Buick Trucks vehicles use four tire sizes across two models. The Enclave uses 255/65R18, 255/60R19, and 255/55R20, while the Encore uses 215/55R18. Even though both models can have an 18-inch wheel, the Enclave and Encore do not share the same 18-inch tire size because the section width and sidewall profile are different.

That means year and make alone are not enough for a confident tire choice on 2013 Buick Trucks vehicles. You need to identify whether you have an Enclave or Encore, then confirm the wheel diameter already on the vehicle. Checking the existing sidewall marking and matching it to the vehicle’s wheel package is the fastest way to avoid ordering the wrong size.

On a 2013 Buick Trucks Enclave, 255/55R20 is a metric radial tire size. The 255 is the section width in millimeters, 55 is the aspect ratio, meaning the sidewall height is 55 percent of the width, R means radial construction, and 20 is the wheel diameter in inches. It is an Enclave-specific fitment rather than a size shared across all Buick truck models for 2013.

That code matters because a 20-inch Enclave tire cannot be substituted casually with the 19-inch or 18-inch Enclave options without changing the wheel itself. If your Enclave already wears 20-inch wheels, this size preserves the intended relationship between tire height, wheel diameter, and overall appearance. Matching the sidewall code on the vehicle is the safest starting point.

No, 2013 Buick Trucks models do not use the same tire size. The Enclave uses three different sizes depending on wheel package—255/65R18, 255/60R19, or 255/55R20—while the Encore uses 215/55R18. All four are radial sizes, but they are tied to specific models and, in the Enclave’s case, to specific wheel diameters as well.

That distinction is important because it changes the order of your fitment research. An Encore owner can go straight to 215/55R18, while an Enclave owner needs to verify whether the vehicle is on 18-, 19-, or 20-inch wheels. If the vehicle has changed hands or has aftermarket wheels, checking the tire sidewall and wheel diameter before replacing tires is especially important.

2013 Buick Trucks vehicles are covered here by four modern metric radial sizes, but brand coverage depends on the exact size fitted to the model. The Enclave’s 255/65R18, 255/60R19, and 255/55R20 sizes and the Encore’s 215/55R18 size each need to be matched to the correct wheel diameter before brand choices can be narrowed further. Brand selection on a modern Buick crossover is usually driven by the exact OE-style size rather than by the Buick name alone.

That makes size confirmation the first buying step, especially on Enclaves that could have left the factory with more than one wheel package. Once you confirm the sidewall code already on the vehicle, you can compare brands within that single size for driving style, sidewall appearance, and service use. Treat model and wheel diameter as the gatekeepers that come before any brand comparison.

2013 Buick Trucks applications use modern metric radial sizing, so sidewall appearance generally follows contemporary crossover standards rather than vintage-style whitewall or bias-ply presentation. The Enclave and Encore were both designed around modern radial tire proportions, with sidewall height and wheel diameter tuned to the vehicle’s trim and ride character. The visual difference between sizes is more about overall proportion than about old-style sidewall treatments.

For a buyer, that means the key appearance decision is usually staying faithful to the wheel-and-tire combination already on the vehicle. A 20-inch Enclave setup naturally presents a shorter sidewall than the 18-inch version, while the Encore’s 215/55R18 has its own narrower, more compact look. If appearance matters as much as fitment, verify both the exact size and the wheel package before making a final choice.

Choosing the right tire for 2013 Buick Trucks starts with model identification. The Enclave uses one of three sizes—255/65R18, 255/60R19, or 255/55R20—while the Encore uses 215/55R18. All four are radial sizes, so the decision is not about bias-ply versus radial construction; it is about matching the correct dimensions to the vehicle’s model and wheel diameter.

That means the buying process is slightly different for each model. Encore owners mainly need to confirm they are staying with the original 18-inch fitment, while Enclave owners must determine whether the vehicle is on 18-, 19-, or 20-inch wheels. Checking the current sidewall marking and comparing it with the actual wheel on the vehicle will usually settle the question quickly.

2013 Buick Trucks vehicles use modern radial tire sizes, and these applications are normally associated with tubeless passenger and crossover fitments rather than tube-type collector tire practice. The Enclave sizes 255/65R18, 255/60R19, and 255/55R20, along with the Encore’s 215/55R18, are all contemporary radial formats intended for modern wheels and valve arrangements. Nothing about these size codes points toward antique tube-type construction.

Even so, wheel condition still matters. If a vehicle has unusual replacement wheels, damage at the bead seat, or other nonstandard hardware, that should be corrected as part of the tire installation process rather than worked around. On a typical factory-style 2013 Buick crossover wheel, the important setup checks are proper valve stems, bead sealing surfaces, and confirming the tire size matches the rim diameter exactly.

No, the original wheels on 2013 Buick Trucks vehicles cannot be treated as universal across all four tire sizes. The Enclave uses 18-, 19-, or 20-inch fitments depending on wheel package, and the Encore uses an 18-inch wheel with a different tire size than the Enclave’s 18-inch application. Matching the tire’s final number to the wheel diameter is non-negotiable.

That means an Enclave owner can only stay within the size family that matches the wheel actually on the vehicle, and an Encore owner should not assume an Enclave 18-inch tire will work simply because the rim diameter is also 18 inches. Width, profile, and intended application still matter. Verify the exact sidewall code before mounting replacement tires on the original wheels.

A stored 2013 Buick Trucks vehicle should be kept out of direct sunlight, away from electric motors and ozone-producing equipment, and on a clean, dry surface. The tires should be set to the correct cold pressure for storage and the vehicle should be moved periodically so it does not rest on one contact patch for months at a time. Modern radial tires resist flat-spotting better than older bias-ply designs, but they still benefit from periodic movement.

If the vehicle will sit for an extended season, many owners use tire cradles or appropriately placed stands to reduce stress on the carcass and suspension. That is especially worthwhile for a heavier crossover like the Enclave. A little storage care helps preserve sidewall condition, keeps the tread from taking a set, and makes the first drive back easier on the tires.

Tires on a 2013 Buick Trucks vehicle should be judged by age and condition as much as by remaining tread. A useful rule for collector and low-mileage vehicles is to begin evaluating tires closely around five to seven years of age and to treat roughly ten years as a serious replacement point, regardless of tread depth. The DOT date code on each tire is the reference for age.

That matters because many premium crossovers accumulate fewer miles than their tires would suggest, especially if they are second vehicles or used lightly. A tire can look serviceable from a distance and still be aging internally. Check the date code, inspect the sidewalls closely, and replace on condition and age rather than waiting for the tread to wear out.

Tires on a 2013 Buick Trucks vehicle should be inspected before every drive and again before any longer outing. Look for sidewall cracking, punctures, bulges, unusual wear, low pressure, and anything embedded in the tread. Because these are modern radial crossover sizes, uneven wear can also point to alignment or suspension issues rather than to the tire alone.

A quick pre-drive inspection is especially helpful on vehicles that sit for long periods between uses. It takes only a few minutes to confirm pressure retention, tread condition, and visible sidewall health. If the vehicle develops vibration, pull, or sudden noise after sitting, inspect the tires immediately before assuming the problem is elsewhere.

2013 Buick Trucks vehicles use modern radial tire sizes, which are the standard construction type for contemporary highway use. The Enclave and Encore were designed around radial tire behavior, so a properly sized, properly maintained replacement tire in the correct wheel diameter is appropriate for normal road use. Safety on the highway depends as much on age, condition, inflation, alignment, and overall vehicle maintenance as it does on the nominal size alone.

For a buyer, the key is not whether the size is inherently highway capable, but whether the tire on the vehicle is the correct size and is still in sound condition. A fresh, correctly fitted radial is only one part of the picture on a 2013 Buick crossover. Brakes, suspension, steering, and wheel condition should all be in good order before extended highway driving.

Inflation pressure for 2013 Buick Trucks tires should follow the vehicle manufacturer’s recommendation for the exact model and wheel package, not a guess based only on size. The Enclave’s 255/65R18, 255/60R19, and 255/55R20 fitments should each be checked against the vehicle placard or owner’s manual, and the Encore’s 215/55R18 should be treated the same way. Pressure should always be checked cold.

That approach matters because pressure is tied to the vehicle’s weight distribution, suspension tuning, and intended load, not just the dimensions molded into the sidewall. If you are comparing replacement tires within the same size, review the tire manufacturer’s maximum pressure information as a rating reference, but use the Buick vehicle recommendation as the normal operating baseline unless a qualified specialist advises otherwise.

Before a longer drive in a 2013 Buick Trucks vehicle, inspect all four tires for cracking, cuts, bulges, punctures, and uneven wear, and verify that the cold pressures are correct for the model and wheel package. Make sure the spare is serviceable as well, since an aged or underinflated spare can turn a minor roadside issue into a major delay. A quick look at valve stems and wheel condition is worthwhile too.

Tires are only one part of the pre-trip check on a modern Buick crossover. Longer drives also call for a look at brakes, fluids, battery condition, and suspension health, especially on vehicles that spend periods in storage. Starting with the tires helps because they are the only part of the vehicle touching the road, and problems there are often the easiest to catch before departure.