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Used Car Reliability Database

Know the engine before you buy.

Compare engine-specific reliability ratings across 50 brands. Backed by 1,508,163+ NHTSA federal complaints.

Worst Engines
Engines to Avoid
  • #1 Acura CL 2001-2003 ❌ Avoid
  • #2 BMW 1 Series 2008-2013 ❌ Avoid
  • #3 BMW 3 Series 2000-2006 ❌ Avoid
View all rankings →
Most Reliable
Proven Reliability
  • #1 GMC Terrain 2010-2017 ✅ Recommended
  • #2 Hyundai Sonata 2020-2024 ✅ Recommended
  • #3 Lexus LX 2008-2021 ✅ Recommended
View all rankings →
4,553 Engines Rated
1,434 Generations Analyzed
1,508,163 NHTSA Complaints
50 Brands

Browse by Brand

Ford
39 models · 240 engines
Chevrolet
45 models · 902 engines
Toyota
30 models · 365 engines
Honda
24 models · 296 engines
Jeep
12 models · 67 engines
Dodge
19 models · 72 engines
Nissan
25 models · 138 engines
Hyundai
23 models · 140 engines
GMC
19 models · 332 engines
Kia
23 models · 97 engines
BMW
31 models · 80 engines
Volkswagen
20 models · 80 engines
Ram
6 models · 8 engines
Chrysler
12 models · 28 engines
Tesla
5 models · 0 engines
All Brands
Mercedes-Benz Subaru Mazda Pontiac Cadillac Audi Buick Saturn Lexus Mercury Acura Volvo Lincoln Mini Mitsubishi Infiniti Land Rover Porsche Suzuki Oldsmobile Jaguar Saab Fiat Isuzu Hummer Daewoo Fisker Genesis Polestar Alfa Romeo Rivian Maserati Lucid Lotus Vinfast

How We Rate Engines

Every rating is derived from NHTSA federal complaint data — the same database used by government safety investigators. We decode VINs to identify specific engines, then compare complaint density within each vehicle segment. No subscription required. No manufacturer sponsorship.

Powered by: NHTSA Complaints Database · NHTSA VIN Decoder · TWD Editorial Analysis

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