2010 Acura Tire Fitment Guide

2010 Acura vehicles use five sizes across three sedan models: 245/45R18 for the RL and some TL applications, 245/50R17 for the TL, 245/40R19 for the TL, 225/50R17 for the TSX, and 235/45R18 for the TSX. Rim diameters therefore span 17, 18, and 19 inches. Rim-width ranges are available for four of those sizes: 225/50R17 fits 6.0 to 8.0-inch rims, 235/45R18 fits 7.5 to 9.0-inch rims, 245/45R18 fits roughly 7.5 to 9.0-inch rims, and 245/40R19 fits 8.0 to 9.5-inch rims.

That means a 2010 Acura buyer should start by identifying the exact model and then confirming the wheel diameter already on the car. The RL is simple because it stays with one 18-inch size, while the TL and TSX can require different tires depending on wheel package. Once the model and wheel are confirmed, the remaining comparison is among brands, speed ratings, and load details within that exact size.

On a 2010 Acura, 245/45R18 is a modern metric radial size. The 245 is the tire's nominal section width in millimeters, 45 is the aspect ratio, meaning the sidewall height is 45 percent of the section width, R means radial construction, and 18 is the wheel diameter in inches. In the 2010 Acura range, this size fits the RL and certain TL applications.

That code matters because it ties the tire to both the wheel and the stance of the car. A 2010 Acura owner seeing 245/45R18 should not substitute a 17-inch or 19-inch fitment simply because the width looks similar. Staying with the correct diameter keeps the tire matched to the wheel, while the exact product choice within 245/45R18 can then be narrowed by brand preference, speed rating, and load specification.

No. The 2010 Acura lineup uses different tire sizes by model, and in some cases by wheel package within the same model. The RL uses 245/45R18, the TL uses 245/50R17, 245/45R18, or 245/40R19, and the TSX uses 225/50R17 or 235/45R18. Only 245/45R18 overlaps between two models, covering the RL and part of the TL range.

That is why year and make alone are not enough for a confident tire choice on a 2010 Acura. A buyer with a TL or TSX should confirm whether the car is on its original wheel package or has been changed over time. If the wheels are still original, the factory wheel diameter is usually the quickest path to the correct size; if not, the tire must match the wheel actually on the car.

The 2010 Acura sizes with product coverage here are all available in Blackwall form. That applies to 225/50R17, 235/45R18, 245/45R18, and 245/40R19, so the visual theme stays consistent across the RL, TL, and TSX sizes represented. Blackwall styling fits the modern sport-luxury character Acura used in this period and avoids the vintage sidewall treatments associated with earlier collector cars.

For a 2010 Acura owner, the sidewall decision is therefore straightforward: focus less on cosmetic variation and more on the exact size, wheel diameter, and performance category that suits the car. If appearance matters, Blackwall is also the easiest match to late-model factory presentation. The larger practical choice is not sidewall style, but selecting the right size first and then comparing brand and speed-rating details within it.

BFGoodrich and Nitto cover the 2010 Acura sizes that have product availability here. BFGoodrich appears across 225/50R17, 235/45R18, 245/45R18, and 245/40R19, while Nitto is available in 225/50R17 and 245/45R18. Every one of those products is a radial Blackwall tire aimed at modern road use rather than vintage-style construction.

That gives a 2010 Acura owner a modest but useful range of brand choices, especially in the shared 245/45R18 size. If you are replacing one tire on an axle or trying to keep the car's handling balance consistent, staying within the same size and closely matching the tire category is usually more important than chasing the widest brand mix. Brand selection comes after the model and wheel package have been confirmed.

On the 2010 Acura sizes where both appear, the two BFGoodrich lines are close in construction type and fitment but differ in some published details. In 245/45R18, g-Force Sport Comp 2 carries a 96W marking and 1,565-pound maximum load at 51 psi, while g-Force Phenom T/A carries a 100Y marking and 1,764-pound maximum load at 50 psi. In 245/40R19, g-Force Sport Comp 2 is marked 98W XL with 1,653 pounds at 50 psi, while g-Force Phenom T/A is marked 98Y with the same 1,653-pound maximum load at 50 psi.

Those differences matter most when you want to compare speed symbol, load figure, and small spec changes within the same Acura size. They do not change the need to match the tire to the correct wheel diameter first. Once the right size is settled, comparing the sidewall marking and capacity figures is a sensible way to narrow the choice between two similar modern radial performance tires.

Rim-width ranges vary by size on 2010 Acura applications. 225/50R17 fits 6.0 to 8.0-inch rims, 235/45R18 fits 7.5 to 9.0-inch rims, 245/45R18 fits about 7.5 to 9.0-inch rims, and 245/40R19 fits 8.0 to 9.5-inch rims. Those ranges reflect the tire size itself, not a universal wheel width for every RL, TL, or TSX.

A 2010 Acura owner should use that information as a wheel check before choosing a replacement tire. If the car still wears its original wheels, the correct size usually falls into place quickly once the wheel diameter is confirmed. If aftermarket wheels are involved, measure or verify the wheel width before ordering so the tire stays within its approved range instead of relying on appearance alone.

The 2010 Acura sizes covered here are modern radial fitments, and none of the available products carry tube-type markings. That points to tubeless use across the 225/50R17, 235/45R18, 245/45R18, and 245/40R19 products represented here. On a 2010 Acura sedan, that is consistent with the late-model wheel-and-tire design Acura used in this period.

Even so, the wheel itself still needs to be in suitable condition for tubeless service. A clean bead seat, sound valve stem, and undamaged rim are just as important as the tire choice. If a 2010 Acura has older aftermarket wheels, corrosion at the bead area or a poor valve-stem seal can cause air loss that gets blamed on the tire when the wheel is really the issue.

A 2010 Acura should be stored away from direct sunlight, ozone sources such as electric motors or battery chargers, and standing moisture. Keep the tires inflated to an appropriate storage pressure and move the car periodically so one contact patch does not carry the full load for months at a time. Modern radials resist flat spotting better than older bias-ply tires, but long static storage still ages rubber and can stiffen the carcass.

If the car will sit for a season, clean the tires, avoid petroleum-based dressings, and consider tire cradles or jack stands used carefully under the suspension points if storage will be extended. A 2010 Acura kept indoors and exercised occasionally will usually age its tires more gracefully than one parked outside year-round. Storage habits matter because collector-style low mileage can disguise age-related deterioration.

On a 2010 Acura, tire age often matters more than mileage, especially if the car sees limited use. A sensible rule is to evaluate tires closely once they reach the five- to seven-year range and to treat around ten years as a strong replacement point regardless of remaining tread. The DOT date code on the sidewall is the quickest way to confirm when the tire was made.

That approach is especially important on sport-luxury sedans because a tire can look acceptable at a glance yet still harden with age. If a 2010 Acura spends long periods parked and only comes out for occasional drives, the rubber may age out before the tread wears down. Sidewall cracking, persistent vibration, and loss of wet-weather confidence are all signs that age is catching up with the tire.

Tires on a 2010 Acura should be checked before every drive and again before any extended highway trip. Look for cuts, bulges, uneven wear, embedded debris, visible cracking, and any slow air loss. Because these are tubeless radial applications, valve-stem condition and bead sealing are also worth checking as part of a regular inspection routine.

Frequent inspection matters because the RL, TL, and TSX can all place very different demands on their tires depending on wheel size and driving style. A quick visual check in the garage can catch age cracking or shoulder wear before it turns into a road issue. Monthly pressure checks are also a good habit, since an underinflated performance-oriented radial can wear rapidly and alter the car's feel.

Yes, the 2010 Acura tires covered here are modern radial designs with speed symbols suited to normal highway use when they are in good condition and correctly sized to the car. The products represented here carry W and Y speed ratings, which correspond to 168 mph and 186+ mph respectively. Those ratings are far beyond ordinary legal highway speeds and sit well above the real-world use most RL, TL, and TSX owners will ever ask of the car.

Safety still depends on age, condition, inflation, alignment, and the mechanical state of the car as much as the speed symbol on the sidewall. A 2010 Acura with worn suspension parts or old brake components will not feel secure simply because the tire carries a high rating. Treat the tire's rating as capacity headroom, not a reason to ignore the broader condition of the vehicle.

Use the factory pressure recommendation for your exact 2010 Acura model and wheel package as the starting point, then compare it with the tire's own sidewall information and the manufacturer's published guidance for that specific product. Maximum load figures in these sizes include examples such as 1,477 pounds at 51 psi for some 225/50R17 products, 1,653 pounds at 50 psi for some 235/45R18 and 245/40R19 products, and up to 1,764 pounds at 50 psi for some 245/45R18 products. Those figures are capacity limits, not automatic everyday inflation targets.

The practical lesson is not to transfer a pressure figure from one size to another or from one Acura model to the next. A TL on 19-inch tires may want something different from a TSX on 17-inch tires even before brand differences enter the picture. Check the driver's door placard or owner's manual for the car, then verify that the tire you choose is being used within its intended pressure range.

Before a longer drive in a 2010 Acura, inspect each tire for cracking, punctures, bulges, and uneven wear, and confirm that pressures are set correctly when cold. Check the valve stems, make sure the spare is serviceable, and look for any sign of a slow leak around the bead area. On a sedan with performance-oriented wheel packages like the TL or TSX, also pay attention to inner-edge wear that may be easy to miss at a glance.

A tire check should be part of a broader pre-trip inspection rather than a standalone step. Brakes, fluid levels, suspension condition, and alignment all influence how securely a 2010 Acura travels at speed. If the car has been sitting, drive a short local loop first to feel for vibration or pull before committing to a full highway run.