<prompt> Human: My dad wants to trade in his car Ford F-150 for a Kia Sorento and he told me that hes going to put my name on this so it can develop my credit score??? im 19 turning 20 this year and ive had a credit card for like the past year and a half and have developed it up to 743 and i dont know what the fuck he means by putting my name. im just worried my credit score is going to go to shit. im at the car dealership right now with my dad and would appreciate any quick responses. thank you! Edit: Thank you so much for the replies, thanks to all the replies i was confident enough to tell my dad that im fine and i dont need help on increasing my credit score.  <response>: Tell him your credit is doing fine. From my understanding, if you cosign you are responsible for the loan if your dad cant pay it. I would not do it. 