- Mar 2, 2005
Was running Mobil 1 5W-30 EP and it started tapping and ticking after 10k. Switched to Castrol Edge 5W-30 and it slowly went away. Now completely gone. Now you can go search for all the threads talking about how Castrol Edge runs smoother than brand X.
Originally Posted By: Ram01
Castrol weak [censored] products all of them will thin out and cause tapping in your motor