Model Hub3 model years analyzed

Porsche 911 ReliabilityAll Years Ranked (19801982)

Side-by-side reliability scores, risk levels, and owner-cost projections for every Porsche 911 we've analyzed. Identify the best years to buy, the ones to avoid, and the problems that follow the 911 across generations.

Average Score

66/100

Best Year

1982 Porsche 911

Score 72

Weakest Year

1980 Porsche 911

Score 58

Every Porsche 911 Ranked

Sorted by reliability score. Each link opens the full year-specific report.

Problems That Follow the 911 Across Generations

Issues that appear in the top-3 risks across multiple model years — the cost of ownership you can actually predict.

Engine Oil Leaks

Appears in 2 model years · 67% of generations

Electrical System

Appears in 2 model years · 67% of generations

Buying a Used 911?

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Score, risk level, top risk areas, repair costs, mileage danger zones, and "what I would do" guidance — all in under 60 seconds.

Full Detail

Pick a year. Get the full report.

Side-by-side rankings are a great start, but the detailed repair costs, mileage danger zones, and buyer checklist live inside each year's full reliability report.