Hum... usually noisy lifter are heard better before an oil change because of the additives depletion. Also, the longer you let the oil go.. the more viscous it gets. (thicker) Which rarely quiets a motor. Unless you let it go a LOOOOONG time.
If your suddenly hearing them after a oil change.. it would stand to reason that the oils additives are not enough to quiet them. Or that the oil passages feeding them are somewhat clogged.
Bumping the thickness up a little would be a good way of finding out whats happening.
Try 10w-30. Or even straight 30w. I personally would'nt go to a 40w unless the motor had at *least* 100k on it.
If it still rattles.. then I'd go back down to a 5w-30 and run full synthetic.
He who is enslaved to the compass is free to sail the seas
Last edited by wydopnthrtl; 11-07-2007 at 10:21 AM.