Top 10 manufacturers - most reliable engines Manufacturer Failure Rate 1 Honda 1 in 344 2 Toyota 1 in 171 3 Mercedes-Benz 1 in 119 4 Volvo 1 in 111 5 Jaguar 1 in 103 6 Lexus 1 in 101 7 Fiat 1 in 85 8 Ford 1 in 80 9 Nissan 1 in 76 10 Land Rover 1 in 72