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Best tires for the Infiniti M45

Top picks across four categories for the Infiniti M45, anchored to the current-generation OEM size 245/45R18. 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 2026-06-09

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 Potenza Sport
Best budget
Goodyear Assurance MaxLife
Best quiet
Bridgestone Turanza QuietTrack
Best winter
Bridgestone Blizzak WS90
UTQG treadwear300820800
Mileage warranty85,000 mi80,000 mi
Cabin noise72 dB70 dB68 dB71 dB
Season classsummerall-seasonall-seasonwinter
Typeperformancetouringtouringpassenger

OEM tire sizes by year

What size does the Infiniti M45 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
2003–2004235/45R18Year-specific fitment →
2006–2007245/40R19Year-specific fitment →
2008–2010245/45R18Year-specific fitment →

How we ranked these tires for the Infiniti M45

We started with the latest model-year's OEM tire size — 245/45R18 — and filtered our catalog of 22,000+ tires to those offered in that exact size. From there, four parallel rankings:

Performance trims trade tread life for grip. Expect summer-class compounds to wear 15,000–25,000 miles vs 50,000+ for all-season touring. The all-season recommendation below is the daily-driver compromise; the budget pick saves money for owners who want the same compound class without the brand premium. 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 M45

5
Complaints
0
Crashes
1
Injuries
0
Deaths

Top issue category: Tires (General)

Most reported: Tires (General) (3) · Tread / Belt (2)

Reported across: 2003 – 2007 (3 years)

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 M45?
The all-season touring slate above ranks the top options for the 245/45R18 OEM size. The leader is selected by matching infiniti-segment fitment, all-season compound class, and premium-brand quality bonus. For most Infiniti M45 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 M45?
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 M45 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 245/45R18 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 M45?
Plus-size and minus-size alternatives within ±3% overall diameter are typically safe per the ETRTO standard. See the 245/45R18 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 2026-06-09.