mx6929 said:this story may not fit exactly in this thread but here it is
my wife's 04 6S Wagon 3.0 V6 has been having clicking sound (like metal to metal contact) since day 1 we got the car. we thought it may be normal so leave it there..2 yrs after as of now..it still exist..so i finally brought the car in and have dealer take a look..tech claimed coz we used pennzoil 5W-30 so it's too thick for "special designed" 3.0 V6 engine..i told him i have been using syntheic 5W-20 and 0W-20 since the 1st oil change in 2k miles...he said "i believe you sir but since u just wanted us to put in ur new 5W-30..the clicking sound will still be there"..his suggestion is to used dealer's "orange 5W-20" conventional oil and it may go away in 1 to 2 month...
i don't know..i just don't buy it..and i tend to stick with what i know..go for sythentic no matter what..and maybe bring to other dealers next time...
It might not be related to your oil. Sounds more like camshaft tick as described by this TSB.