lnmech

have a 2006 v6 and ever since i bought the car at start up u can hear the lifters not real loud but u can hear them,after warm up seems to go away but at low speeds i can hear them still high speeds nothing.my 96 3.8 does it at start up for about 5 sec and its done.i know on the 96 its the oil sitting in pan but what is it on new one?i checked oil every day and just changed it 3 days ago any help or info would be great.