Is the Ford Mustang reliable?
46% of the 65 we inspected scored 60/100 or higher, with an average of 54/100 — it scores noticeably below average.
65
Cars inspectedreal pre-purchase inspections54/100
Average conditionall cars we check: 61/10046%
In good shape (60+)all cars we check: 56%Across 65 used Ford Mustangs we inspected, this model scores noticeably below average — average condition 54/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Oil leaks · Engine
57%
Fuel trim out of range · Engine
37%
Tires condition & wear · Brakes and tires
37%
Active error codes · Electronic equipment
18%
Oil leaks · Drivetrain
18%
Share of inspected Ford Mustangs where each item was flagged.
How they score
Excellent 18%
Good 28%
Mediocre 25%
Poor 29%
Hidden history
What the seller might not mention — how often we find it on this model.
83%had a repainted or replaced panelall cars: 74%
15%showed structural repairall cars: 4%
15%had fault codes recently clearedall cars: 24%
How long does a Mustang stay good?
Good cars by mileage
Share of Ford Mustangs 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). The dashed grey curve is all cars we check.
More on Ford
Transit
70 cars · 67% good
F-150
127 cars · 56% good
Escape
40 cars · 55% good
Fusion
38 cars · 45% good
Explorer
32 cars · 40% good
F-250
28 cars · 36% good
Other Ford models we've inspected — or see the full Ford profile.
Straight from recent Ford Mustang reports
2023 Ford Mustang · 9k mi — flagged: smoothness, oil leaks, battery condition. Inspected Sep 9.
2018 Ford Mustang · 117k mi — flagged: low coolant / cooling system issues, oil leaks, battery condition. Inspected Sep 6.
The bottom line
Treat a clean-looking Mustang as a body-and-engine problem until proven otherwise. Structural repairs turn up on 15% of these cars against 4% across the fleet, so inspect the structure before you trust the paint, which is repainted more often than average. Oil leaks are the main mechanical tell, with fuel-trim faults and worn tires right behind them. Walk or cut the price if you see structural work plus a wet engine or a fuel-trim code. Cleared codes are less common here than fleet-wide, so a clean scan means a bit more, but it does not excuse leaks.
FAQ
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What are the most common problems on a used Ford Mustang?
The items we flag most often are oil leaks (57%), fuel trim out of range (37%), tires condition & wear (37%). Have these checked before buying.
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Should I worry about cleared fault codes?
On 15% of these cars the ECU codes had been erased shortly before sale, which can hide active faults. Ask for a diagnostic scan and start the engine from cold.
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Based on 65 inspections · updated Oct 22, 2026
