I just bought an07 ram with a 5.7 ,with 96,000kms ,when engine is cold. It runs quiet , once it warms up it starts to tick , almost like a bad lifter but not as loud , is this the hemi tick ? Is there a way to fix this tick? What causes it ? Oil dalership used seems very thin , I drained oil filter and used some pensionless and a new filter , seems to have lessened the noise but it's still there .any ideas anyone?