I was given an 80 sedan deville that started life as a conversion diesel , 65k warranty swap , 135k (60k new ) warranty swap , GM and the dealer teamed up and made the original owner take an olds 350ho gas motor instead of another diesel . I got it with 195k on it and sold it with 335k .Car had a metric th250 trans that had finally given up and nobody in the Lansing area wanted to touch it due to lack of local parts .But the motor still ran like a champ .