The 2020 Nissan Maxima sits at the modern end of Nissan’s long-running four-door flagship line, blending full-size sedan comfort with a more athletic character than many mainstream family cars. Buyers looking at one today are usually balancing everyday road use with keeping the car’s original stance and wheel package intact. Tire fitment centers on two radial sizes, 245/40R19 and 245/45R18, depending on sub-model and wheel diameter. That makes the first decision less about vintage-style construction and more about confirming trim and rim size, then comparing available blackwall performance-oriented tire series. For a Maxima that still wears its intended proportions, matching the correct size to the exact sub-model matters most.
Which Tire Size Is Right for The 2020 Nissan Maxima
The 2020 Nissan Maxima uses two primary tire sizes, and the correct one depends on the exact sub-model and wheel diameter. All fitments are radial, but some trims use an 18-inch wheel with 245/45R18 while others use a 19-inch wheel with 245/40R19. Before choosing a tire, confirm both the sub-model and the wheel currently on the car, especially if it has ever had replacement wheels installed.
245/40R19 is a modern metric radial size in which 245 identifies the nominal section width in millimeters, 40 is the aspect ratio, R denotes radial construction, and 19 is the rim diameter in inches. On the 2020 Nissan Maxima, this size suits trims equipped with the larger 19-inch wheel package and keeps the lower-profile look associated with that setup. Available choices in this size come from BFGoodrich in blackwall form across g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A series. This is the size to evaluate when the car already has 19-inch wheels and the goal is to preserve that wheel-and-tire proportion.
245/45R18 is a modern metric radial size where 245 is the nominal section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 18 identifies the rim diameter in inches. On the 2020 Nissan Maxima, this size applies to trims equipped with 18-inch wheels, so the wheel diameter must be confirmed before moving ahead. Product choices include blackwall tires from BFGoodrich and Nitto, with series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size is the right place to compare options when the car retains its 18-inch wheel fitment.
Sub-model fitment on the 2020 Nissan Maxima is not uniform, because some trims use 18-inch wheels and others use 19-inch wheels. Checking the exact trim matters before selecting tires, since the two sizes are close in overall diameter but are built for different rim diameters.
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2020 Nissan Maxima Platinum
The 2020 Nissan Maxima Platinum uses the 245/40R19 radial tire size. That makes 19-inch wheel confirmation the key first step, followed by comparing blackwall tire series that match the car’s existing wheel package and intended road use.
The 2020 Nissan Maxima Platinum Reserve uses the 245/40R19 radial tire size. Tire selection here starts with verifying that the car still carries its 19-inch wheels, then choosing among available blackwall radial performance-oriented options in that size.
The 2020 Nissan Maxima S uses the 245/45R18 radial tire size. Buyers should confirm the 18-inch wheel setup first, then compare available blackwall tires by brand, series, and rim-width compatibility within that size.
The 2020 Nissan Maxima SL uses the 245/45R18 radial tire size. With this trim, the main tire decision is staying with the correct 18-inch fitment and then sorting through the available blackwall radial choices for the desired balance of style and use.
The 2020 Nissan Maxima SR uses the 245/40R19 radial tire size. That points the buyer toward 19-inch-wheel tire options, where the practical decision becomes comparing the available blackwall series rather than sorting through multiple construction types.
The 2020 Nissan Maxima SV uses the 245/45R18 radial tire size. Choosing for this trim means confirming the 18-inch wheel diameter and then narrowing the available blackwall radial options by brand, series, and wheel-width suitability.
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 2020 Nissan Maxima Tires for Sale
Available 2020 Nissan Maxima tire choices center on blackwall radial performance-oriented designs in 245/40R19 and 245/45R18. BFGoodrich appears in both sizes across several g-Force series, while 245/45R18 also adds a Nitto NT555 G2 option for buyers comparing brand and series differences.
Tire questions for the 2020 Nissan Maxima usually come down to trim-specific sizing, 18-inch versus 19-inch wheel fitment, and how to compare the available radial tire series once the correct size is confirmed.
Tire Size & Fitment
What tire size fits a 2020 Nissan Maxima?
The 2020 Nissan Maxima uses two tire sizes: 245/40R19 and 245/45R18. Both are radial fitments, but they do not apply across every trim. Platinum, Platinum Reserve, and SR use 245/40R19, while S, SL, and SV use 245/45R18.
The most important step is matching the tire to the exact sub-model and the wheel currently on the car. These two sizes are close in overall diameter, but one is built for a 19-inch rim and the other for an 18-inch rim, so the wheel diameter must be confirmed before choosing a replacement.
What size rim does a 2020 Nissan Maxima use?
A 2020 Nissan Maxima uses either an 18-inch or 19-inch rim, depending on the sub-model. The 245/45R18 tire size belongs on an 18-inch rim, while the 245/40R19 tire size belongs on a 19-inch rim.
Wheel diameter should be verified on the car rather than assumed, especially if a previous owner changed wheels or moved tires between trim levels. Tire size and rim diameter must match exactly, so an 18-inch tire cannot be mounted on a 19-inch wheel, and a 19-inch tire cannot be mounted on an 18-inch wheel.
Do all 2020 Nissan Maxima sub-models use the same tire size?
No, the 2020 Nissan Maxima does not use one tire size across every sub-model. Platinum, Platinum Reserve, and SR use 245/40R19, while S, SL, and SV use 245/45R18. All of these are radial tires, but the wheel diameter changes with the trim.
That difference means trim identification matters before comparing brands or tire series. A buyer looking only at overall width might think the sizes are interchangeable because both begin with 245, but the aspect ratio and rim diameter differ, so the correct starting point is always the exact sub-model and wheel size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2020 Nissan Maxima?
Start with the correct trim-specific size: 245/40R19 for Platinum, Platinum Reserve, and SR, or 245/45R18 for S, SL, and SV. From there, compare radial tire choices by brand, tire series, sidewall style, and wheel-width compatibility so the replacement matches the car’s actual wheel package.
A useful comparison goes beyond size alone. Consider whether the car is used mainly for commuting, weekend driving, or a more performance-focused feel, then look at details such as rim-width range, load figures where given, and whether the tire keeps the appearance and stance you want on the Maxima.
What brands offer tires for the 2020 Nissan Maxima?
The 2020 Nissan Maxima has available tire options from BFGoodrich and Nitto, depending on size. BFGoodrich appears in both 245/40R19 and 245/45R18, while Nitto is available in 245/45R18 through the NT555 G2 series.
Brand choice should still come after confirming the correct size and wheel diameter for the trim. Once that is settled, compare the available series within that size rather than assuming any tire from either brand applies across the whole Maxima range, since the two factory fitments use different rim diameters.
What tire series are available for the 2020 Nissan Maxima?
Available tire series for the 2020 Nissan Maxima include BFGoodrich g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A. In 245/45R18, the Nitto NT555 G2 is also available, adding another series choice for trims that use the 18-inch wheel fitment.
Series comparisons matter most after the correct size is confirmed. Once the tire size is narrowed down, the series helps distinguish the character of the options in the product grid, along with brand, blackwall presentation, rim-width specification, and any stated load or weight details that may matter to the buyer.
Restoration & Appearance
Which tire should I choose for a period-style 2020 Nissan Maxima?
A period-style approach on a 2020 Nissan Maxima starts with keeping the correct original-size fitment for the specific trim, either 245/40R19 or 245/45R18. Since this Maxima uses modern radial sizing rather than vintage bias-ply formats, the period-style decision is mostly about preserving the intended wheel diameter and overall visual proportion.
Appearance is best maintained by avoiding size substitutions that change the relationship between tire sidewall and wheel. A Maxima meant to retain its original trim-level look should stay with the proper 18-inch or 19-inch package, then compare available blackwall series for the presentation that best suits a clean, stock-style modern sedan.
Does correct tire fitment matter for a 2020 Nissan Maxima restoration?
Yes, correct tire fitment matters on a 2020 Nissan Maxima because the tire size is tied directly to the trim’s wheel diameter and the car’s intended proportions. Using 245/40R19 on the 19-inch-wheel trims or 245/45R18 on the 18-inch-wheel trims keeps the fitment aligned with the proper wheel package.
Even on a relatively recent car, restoration-minded buyers should avoid treating near-size alternatives as interchangeable without checking the full setup. Proper fitment affects how the car sits, how the wheels fill the openings, and whether the finished result still looks consistent with the Maxima’s original trim-level presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2020 Nissan Maxima?
Yes, modifications can affect tire fitment on a 2020 Nissan Maxima. Wheel changes, altered offsets, suspension lowering, replacement springs, or body modifications can all change the clearance relationship around either the 245/40R19 or 245/45R18 fitment.
A Maxima with aftermarket wheels should be checked carefully before replacement tires are chosen, even when the size on the sidewall looks familiar. Confirm the actual wheel diameter and width, then inspect fender, strut, and steering clearance so the new tire matches the car’s current setup rather than only its original trim specification.
What should I inspect before driving a 2020 Nissan Maxima on new tires?
Before driving a 2020 Nissan Maxima on new tires, inspect the wheel condition, verify the tire size against the trim, and make sure inflation is set correctly for the vehicle’s needs. It is also wise to look over the suspension and alignment condition so the new tires start life on a sound platform.
Road use is smoother when the basic checks are handled first. Look for signs of rubbing, confirm that lug hardware and wheel mounting surfaces are in good shape, and make sure there are no cuts, bulges, or air-loss issues from installation. A short initial drive followed by a recheck helps catch any fitment concerns early.
How often should tires on a 2020 Nissan Maxima be inspected?
Tires on a 2020 Nissan Maxima should be inspected regularly, especially for tread wear, air loss, sidewall damage, and signs of uneven wear that may point to alignment or suspension issues. Even on a newer collector-kept or lightly used sedan, time and storage conditions can affect tire condition as much as mileage does.
A practical routine is to check the tires visually before longer drives and to give them a closer inspection at regular service intervals. Pay attention to cracking, punctures, bulges, and shoulder wear, and do not forget the wheel itself. Catching early wear patterns can help prevent replacing the next set prematurely.
