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Infiniti vs Mazda Reliability

Nearly a tie: Infiniti averages 61/100 vs Mazda at 63/100 across 319 real pre-purchase inspections (94 Infiniti / 225 Mazda). 55% of Infinitis and 59% of Mazdas scored 60/100 or higher. The average car we check scores 61/100.

vs
Head to head
InfinitiMazda
Cars inspected94225
Average condition61/10063/100
In good shape (60+/100)55%59%
Holds up to (avg dips below decent)~121k mi~115k mi
Repainted or replaced panel82%76%
Structural repair found7%5%
Fault codes recently cleared27%24%

Green = the better number of the pair. Condition reflects the mix of cars that came to us — age, price, model — so treat small gaps as a tie.

How they score
Infiniti
Excellent 27% Good 28% Mediocre 26% Poor 20%
Mazda
Excellent 28% Good 31% Mediocre 24% Poor 17%
How long do they stay good?
Good cars by mileage
▬ Infiniti▬ Mazda▬ all cars
0 25 50 75 100 Infiniti, 40–60k mi: 91%, drawn from the nearby bands (14 cars in this band)Infiniti, 60–80k mi: 71%, drawn from the nearby bands (12 cars in this band)Infiniti, 80–100k mi: 59% in good shape (22 cars)Infiniti, 100–120k mi: 47%, drawn from the nearby bands (13 cars in this band)Infiniti, 120–140k mi: 34%, drawn from the nearby bands (11 cars in this band)Infiniti, 140–160k mi: 20%, drawn from the nearby bands (7 cars in this band)Infiniti, 160–180k mi: 29%, drawn from the nearby bands (7 cars in this band) Mazda, 0–20k mi: 89%, drawn from the nearby bands (18 cars in this band)Mazda, 20–40k mi: 80% in good shape (20 cars)Mazda, 40–60k mi: 83% in good shape (36 cars)Mazda, 60–80k mi: 63% in good shape (30 cars)Mazda, 80–100k mi: 50% in good shape (36 cars)Mazda, 100–120k mi: 40% in good shape (30 cars)Mazda, 120–140k mi: 32% in good shape (22 cars)Mazda, 140–160k mi: 29%, drawn from the nearby bands (15 cars in this band)Mazda, 160–180k mi: 35%, drawn from the nearby bands (7 cars in this band)Mazda, 180–200k mi: 23%, drawn from the nearby bands (6 cars in this band) 40k 80k 120k 160k 200k mileage when we inspected it
Good cars by age
▬ Infiniti▬ Mazda▬ all cars
0 25 50 75 100 Infiniti, 3 years old: 93%, drawn from the nearby bands (5 cars this age)Infiniti, 4 years old: 79%, drawn from the nearby bands (7 cars this age)Infiniti, 5 years old: 69%, drawn from the nearby bands (8 cars this age)Infiniti, 6 years old: 58%, drawn from the nearby bands (6 cars this age)Infiniti, 7 years old: 53%, drawn from the nearby bands (6 cars this age)Infiniti, 8 years old: 45% in good shape (11 cars)Infiniti, 9 years old: 40%, drawn from the nearby bands (7 cars this age)Infiniti, 10 years old: 48%, drawn from the nearby bands (8 cars this age)Infiniti, 11 years old: 50% in good shape (8 cars)Infiniti, 12 years old: 42%, drawn from the nearby bands (5 cars this age)Infiniti, 13 years old: 35%, drawn from the nearby bands (6 cars this age)Infiniti, 14 years old: 41%, drawn from the nearby bands (5 cars this age) Mazda, 1 years old: 95%, drawn from the nearby bands (11 cars this age)Mazda, 2 years old: 97%, drawn from the nearby bands (11 cars this age)Mazda, 3 years old: 92%, drawn from the nearby bands (16 cars this age)Mazda, 4 years old: 85%, drawn from the nearby bands (15 cars this age)Mazda, 5 years old: 79%, drawn from the nearby bands (14 cars this age)Mazda, 6 years old: 72%, drawn from the nearby bands (15 cars this age)Mazda, 7 years old: 63%, drawn from the nearby bands (17 cars this age)Mazda, 8 years old: 57%, drawn from the nearby bands (19 cars this age)Mazda, 9 years old: 43% in good shape (28 cars)Mazda, 10 years old: 48%, drawn from the nearby bands (16 cars this age)Mazda, 11 years old: 50%, drawn from the nearby bands (12 cars this age)Mazda, 12 years old: 38% in good shape (13 cars)Mazda, 13 years old: 28%, drawn from the nearby bands (7 cars this age)Mazda, 14 years old: 38%, drawn from the nearby bands (10 cars this age) 2y 4y 6y 8y 10y 12y 14y 16y vehicle age when we inspected it

Share in good shape (scoring 60+/100) by mileage and by age when we inspected them (each dot ≥5 cars; a band under 20 cars follows the nearby bands, so a run above the all-cars line stays above it, and a band of 20 or more uses the rate we measured; where a band has too few cars, the line follows the trend between the bands on either side; rolled-back odometers excluded from the mileage curve). Dashed grey = all cars we check.

Most common faults
Infiniti
Oil leaks · Engine
57%
Tires condition & wear · Brakes and tires
49%
Active error codes · Electronic equipment
35%
Fluid leaks · Steering (hydraulic power)
35%
Low coolant / cooling system issues · Engine
31%
Mazda
Oil leaks · Engine
65%
Fuel trim out of range · Engine
34%
Tires condition & wear · Brakes and tires
33%
Worn suspension joints · Suspension
18%
Belts · Engine
14%
Trajectory by generation
Infiniti

Not enough Infinitis at the 5–10 year checkpoint yet to draw a generation trend.

Mazda ↘↗ Dipped in the mid-2010s — the newest generation recovered 40% 60% 80% 2012–14: 64% in good shape (age-adjusted; 23 cars, raw 61%) 64 2015–17: 53% in good shape (age-adjusted; 43 cars, raw 47%) 53 2018–20: 65% in good shape (age-adjusted; 34 cars, raw 71%) 65 2009–11 2012–14 2015–17 2018–20 2021+

Share in good shape when inspected at the same age (5–10 years, age-adjusted), by model-year generation; dashed = all-brand average. All brands →

FAQ
?
Which is more reliable, Infiniti or Mazda?
Nearly a tie: Infiniti averages 61/100 vs Mazda at 63/100 across 319 real pre-purchase inspections (94 Infiniti / 225 Mazda). 55% of Infinitis and 59% of Mazdas scored 60/100 or higher.
?
What are the most common problems with used Infinitis and Mazdas?
On Infinitis we flag oil leaks (57%), tires condition & wear (49%), active error codes (35%). On Mazdas: oil leaks (65%), fuel trim out of range (34%), tires condition & wear (33%).
?
How many Infiniti and Mazda vehicles have you inspected?
94 Infinitis and 225 Mazdas — 319 real pre-purchase inspections. Updated Oct 27, 2026.
?
How long do Infinitis and Mazdas stay in good shape?
In our data, the average Infiniti dips below “decent” around ~121k mi; Mazda around ~115k mi. Individual cars vary — get the one you’re buying inspected.
Buying a used Infiniti or Mazda? Get a pre-purchase inspection before you pay.
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Based on 319 inspections · updated Oct 27, 2026