The frontier has to be one of the most reliable vehicles Nissan makes. I have worked for Nissan for many years now and can tell you these things stand the test of time. Now I am not saying that you will never have any issue with one but I can tell you it is a lot less than some other Nissan vehicles. Yes Nissan kicked themselves in the face for the radiator/trans but really as long as you replace the radiator and or bypass it you will be fine. I chose to purchase a Nissan frontier because of their reliability, styling, and simplicity. You really cannot go wrong with this truck.