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Best tires for the Infiniti Q45

Top picks across four categories for the Infiniti Q45, anchored to the current-generation OEM size 235/45R18. Every recommendation is selected from our 22,000-tire catalog by ranking on UTQG treadwear, mileage warranty, cabin-noise rating, and season class; no commission-weighted reordering.

By Mark Bishop · Last verified 2026-10-07

Daily driver

Best all-season touring

Long warranty, low noise, balanced ride. The one-tire compromise that works for 80% of owners.

Lowest cost per mile

Best budget

Best price-per-warranty-mile in this size. Trade-off is shorter warranty vs premium options, not safety.

Lowest cabin noise

Best quiet

Tread patterns engineered to break up the harmonic peaks that cause highway droning. Pick this if you commute long highway distances daily.

Cold-weather grip

Best winter

Dedicated winter or all-weather compounds that stay pliable below 7 °C. Necessary for >5 snow days a year.

Side-by-side

Pick the trade-off that matches your driving

All-season
Bridgestone Turanza QuietTrack
Best budget
Goodyear Assurance MaxLife
Best winter
Bridgestone Blizzak WS90
UTQG treadwear800820-
Mileage warranty80,000 mi85,000 mi-
Cabin noise68 dB70 dB71 dB
Season classall-seasonall-seasonwinter
Typetouringtouringpassenger

OEM tire sizes by year

What size does the infiniti Q45 use?

Recommendations on this page are anchored to the latest model-year's OEM size. Confirm yours against the driver-door placard before purchase.

YearOEM size
1990–1996215/65R15Year-specific fitment →
1997–1998215/60R16Year-specific fitment →
1999–2001225/50R17Year-specific fitment →
2002–2005245/45R18Year-specific fitment →
2006245/40R19Year-specific fitment →

How we ranked these tires for the infiniti Q45

We started with the latest model-year's OEM tire size; 235/45R18; and filtered our catalog of 22,000+ tires to those offered in that exact size. From there, four parallel rankings:

For sedans and compacts, the all-season touring tire below is the best default; long warranty, low cabin noise, reasonable cost per mile. Switch to the quiet pick if highway droning is a deal-breaker; switch to the winter pick if you see significant snow each year. Use the side-by-side comparison above to weigh the trade-offs against your specific driving; highway-heavy, winter-state, performance-oriented, or budget-constrained.

NHTSA-reported issues for infiniti Q45

14
Complaints
1
Crashes
1
Injuries
0
Deaths

Top issue category: Tires (General)

Most reported: Tires (General) (12) · TPMS (2)

Reported across: 1991 – 2005 (8 years)

What owners described

Blowout or sudden deflation is the most common description, in 20% of these reports. Percentages are shares of the 10 reports covering every model year of the Infiniti Q45 that include a written account; a single report can describe more than one problem, so they do not total 100%.

Reported problemThis subjectAll tire complaintsRelative
Blowout or sudden deflation 20% 20% 1.0×
Sidewall failure 10% 15% 0.7×
Bubble or bulge in the tire 10% 6% 1.7×

In owners' own words

Verbatim excerpts from complaints filed with NHTSA about Infiniti Q45. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.

WHILE DRIVING 25-30 MPH VEHICLE HIT A POT HOLE AND IT VIBRATED UNCONTROLLABLY. DRIVER WAS PULLED OVER AND NOTICED THAT THE REAR LEFT TIRE WAS FLAT. VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION, AND MECHANIC DETERMINED THAT THE TIRE NEEDED TO BE REPLACED. *AK SECOND TIRE DEVELOPED A BUBBLE ON OUTSIDE YET THE TIRE HAD NO SIGN OF DAMAGE ON THE OUTSIDE, THIS HAPPENED AT 42,538 MILES. CONSUMER HAS BOTH FAULTY TIRES. THE DEALER STATED THAT THE LEFT REAR RIM AND TIRE WERE BENT AND REPLACED REAR TIRE AND RIM MOUNT AND BALANCED THE TIRES. *BF

NHTSA complaint 529848 · 2000 vehicle

MY CAR A 1999 INFINITI Q45 HAS 4 CONTINENTAL TIRES. THESE WERE PURCHASED LAST YEAR AND HAS BEEN USED FOR ABOUT 6000 MILES. ON TUESDAY AUGUST 30 THE RIGHT REAR TIRE BLEW OUT CAUSING THE VEHICLE TO SLIDE ON THE RIGHT SIDE AND EVENTUALLY OVERTURN. IS IT NORMAL WITH A STEEL BELTED RADIAL FOR THE THREAD SURFACE TO COME COMPLETELY OFF THE SIDEWALL. THE AFFECTED TIRE IS IN 3 PIECES WITH THE WALLS ON THE RIM AND THE TREAD COMPLETELY CUT OFF BUT STILL IN A CIRCLE.

NHTSA complaint 553202 · 1999 vehicle

Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.

FAQ

What's the best all-season tire for the Infiniti Q45?
The all-season touring slate above ranks the top options for the 235/45R18 OEM size. The leader is selected by matching infiniti-segment fitment, all-season compound class, and premium-brand quality bonus. For most Infiniti Q45 owners, the all-season touring pick is the best one-tire compromise; long warranty, low noise, reasonable cost per mile.
Should I get a cheaper tire for my Infiniti Q45?
The budget slate above ranks tires by cost-per-warranty-mile, ignoring brand premium. The budget pick is genuinely competitive on durability metrics; the trade-off is shorter warranty and slightly higher cabin noise, not actual safety risk. If you drive less than 15,000 miles a year, the budget pick will outlast your replacement window regardless.
Does the Infiniti Q45 need winter tires?
If you see more than 5 snow days a year or drive at sustained temperatures below 7 °C, yes; winter compounds stay pliable in cold where all-season rubber hardens, which translates directly to shorter braking distances. The winter pick above is 3PMSF severe-snow rated and works for the 235/45R18 OEM fitment. Storage cost is real (4 extra tires somewhere), but the safety margin in winter conditions is substantial.
Can I run a different tire size on my Infiniti Q45?
Plus-size and minus-size alternatives within ±3% overall diameter are typically safe per the ETRTO standard. See the 235/45R18 upsize options for the full categorised alternatives table with verdicts.
Where can I buy these tires?
Each tire links to its detail page with live pricing from our online retailer partners. Out-the-door cost (including mount, balance, TPMS service, and disposal) varies by state; use the install cost calculator for a realistic estimate.

Last verified 2026-10-07.