The 2012 Acura RL sits at the end of Acura’s flagship sedan line, blending luxury-sedan refinement with the brand’s understated performance character. Buyers looking at one today are often balancing everyday road manners with the need to preserve the car’s composed, high-speed touring feel. This model uses one primary tire size, 245/45R18, in radial construction on an 18-inch rim. Available choices in that size center on modern blackwall performance-oriented radial lines from BFGoodrich and Nitto. For an RL owner, the real decision is less about finding the right size and more about matching the tire’s character, rim compatibility, and road-use priorities to the car’s current setup.
Which Tire Size Is Right for The 2012 Acura RL
The 2012 Acura RL uses one primary tire size: 245/45R18, a metric radial built for an 18-inch wheel. The Acura RL Base uses that same fitment, so the main choice is not between different factory sizes, but between available tire lines in the correct size, along with rim-width compatibility and the kind of road feel you want from the car.
245/45R18 is a modern metric radial size in which 245 represents the nominal section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 18 is the wheel diameter in inches. On the 2012 Acura RL, this size supports the car’s modern sedan fitment and keeps selection focused on contemporary radial performance tires rather than vintage sizing formats. Available options in this size come from BFGoodrich and Nitto, with blackwall styling and several distinct tire series. That makes this size a matter of choosing the right tire personality and wheel match, not decoding multiple fitments.
Fitment is straightforward across the covered 2012 Acura RL sub-models. The key point is simply confirming that the car remains on its original 18-inch wheel setup before choosing among the available 245/45R18 radial options.
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2012 Acura RL Base
The 2012 Acura RL Base uses the same 245/45R18 radial tire size as the core model fitment. That keeps tire selection centered on comparing available blackwall radial products, checking wheel width, and making sure the car has not been altered with a different wheel or suspension setup.
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 2012 Acura RL Tires for Sale
Available 245/45R18 choices for the 2012 Acura RL come from BFGoodrich and Nitto, all in blackwall radial construction. The product grid is most useful for comparing tire series, rim-width compatibility, weight, and load-capacity details within this single correct size.
These 2012 Acura RL tire FAQs focus on the 245/45R18 fitment, 18-inch wheel requirements, available radial choices, product selection differences, and the inspection points that matter before regular road use.
Tire Size & Fitment
What tire size fits a 2012 Acura RL?
The 2012 Acura RL uses 245/45R18 as its primary tire size. It is a radial fitment designed for an 18-inch wheel, and the RL Base uses the same size, so there is no separate alternate size to sort through within the covered model range.
That makes the buying decision fairly simple: stay with 245/45R18 and compare the available tire lines in that size. Before selecting a tire, confirm that the car still has the correct 18-inch wheels and has not been changed to a different wheel diameter, width, or offset that could affect fitment.
What size rim does a 2012 Acura RL use?
The 2012 Acura RL uses an 18-inch rim with its 245/45R18 tire size. That 18 at the end of the tire size is the wheel diameter in inches, so any tire choice for this fitment needs to match an 18-inch wheel.
Wheel diameter is only part of the fitment picture, though. The available 245/45R18 products also carry rim-width specifications, generally in the 7.5- to 9-inch range, so it is worth confirming both wheel diameter and actual wheel width before choosing among the available RL tire options.
Does the 2012 Acura RL Base use the same tire size?
Yes. The 2012 Acura RL Base uses the same 245/45R18 radial tire size as the broader 2012 Acura RL fitment. That means the Base model does not introduce a second primary tire size or a different wheel diameter within this covered application.
For most owners, that simplifies the process to selecting the right tire series and checking compatibility with the wheels currently on the car. If the RL Base has aftermarket wheels or suspension changes, verify wheel width, offset, and clearance rather than assuming every 245/45R18 tire will behave the same on a modified setup.
Choosing the Right Tire
What should I consider when choosing a 245/45R18 tire for a 2012 Acura RL?
Start with the correct size, 245/45R18, and confirm that the tire is suited to the RL’s 18-inch wheel setup. From there, compare the available radial tire series, rim-width requirements, weight, and load-capacity details to narrow the choices within the correct fitment.
The RL is a modern luxury sedan, so the right choice often depends on how the car is actually used. A mostly stock car driven on the street may call for a balanced all-season or performance-oriented radial, while a more aggressively driven example may benefit from closer attention to tire series and construction details.
What sidewall styles are available for 2012 Acura RL tires?
The available 245/45R18 tires for the 2012 Acura RL use blackwall sidewalls. That keeps the appearance modern and restrained, which suits the RL’s late-model luxury-sedan presentation more naturally than vintage sidewall treatments such as whitewalls or redlines.
Since sidewall styling does not vary here, the meaningful comparison shifts to tire series, brand, rim-width compatibility, and load-related specifications. Owners focused on appearance can still compare tread and sidewall design language, but the visual choice remains within blackwall radial tires rather than multiple sidewall treatment types.
What brands offer tires for the 2012 Acura RL?
The 2012 Acura RL has 245/45R18 tire options from BFGoodrich and Nitto. Within those brands, the available products span several radial tire series, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2.
Brand choice should be treated as part of a broader comparison rather than the only decision point. It is more useful to look at the specific tire series, wheel-width range, load figures where shown, and the kind of driving you expect from the RL, especially if the car is used for more than routine commuting.
Restoration & Appearance
Which tire should I choose for a period-style 2012 Acura RL?
A period-style 2012 Acura RL is still a modern luxury sedan, so staying with the correct 245/45R18 radial size and a clean blackwall presentation is the most natural starting point. The available BFGoodrich and Nitto radial lines fit that overall visual character without introducing an obviously vintage look.
Appearance should be balanced with the car’s actual wheel setup and intended road use. Since several tire series are offered in the same size, the better restoration-minded choice is usually the one that preserves the RL’s original overall stance and contemporary look while remaining compatible with the wheels currently on the car.
Does correct tire fitment matter for a 2012 Acura RL restoration?
Yes, correct tire fitment matters even on a newer collector or preservation-oriented sedan like the 2012 Acura RL. Using the proper 245/45R18 size helps maintain the car’s intended proportions, keeps the wheel-to-tire relationship in line with the original design, and avoids an obviously mismatched appearance.
Fitment also affects more than looks. A tire that is too wide, too narrow, or mounted on the wrong wheel can change how the car sits and how it responds on the road. Owners restoring or preserving an RL should confirm wheel size and width before making appearance-based tire decisions.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2012 Acura RL?
Yes. Even though the correct primary tire size is 245/45R18, modifications can change whether that fitment works the same way on every 2012 Acura RL. Aftermarket wheels, different wheel offsets, suspension changes, or ride-height alterations can all affect clearance and overall tire behavior.
A modified RL should be checked at the wheel and vehicle level, not just by tire size. Confirm the 18-inch wheel diameter, actual wheel width, and available space at the fenders and steering points before choosing a tire, especially if the car no longer sits or steers exactly as it did originally.
What should I inspect before driving a 2012 Acura RL on new tires?
Before road use, inspect wheel condition, tire pressure, valve stems, and the tire sidewalls for any damage from mounting or handling. It also helps to verify that each tire matches the intended 245/45R18 fitment and that the wheels are the proper 18-inch size for the RL.
A short follow-up check after installation is worthwhile as well. Look for any rubbing at full steering lock, confirm that the tires are wearing evenly, and monitor air pressure during the first drives. Those simple checks can catch wheel-width, alignment, or clearance issues before they become larger problems.
How often should tires on a 2012 Acura RL be inspected?
Tires on a 2012 Acura RL should be inspected regularly, not just when tread wear becomes obvious. Check them before longer drives and make a habit of looking at pressure, tread condition, sidewall cracking, cuts, bulges, and any signs of uneven wear during normal ownership.
That routine matters even more on cars that spend time parked. A low-use RL can develop age-related tire issues long before the tread is gone, so periodic inspection helps catch problems early. Consistent checks also make it easier to spot suspension or alignment concerns that may show up in the tire wear pattern.
