What types of problems could arise if you use an inferior engine oil (compared to top tier synthetics) that would not show themselves on a UOA. For example, if you use Pennzoil 5W30 dino and all wear metals are in the low single digits for a 5,000 OCI, is there even a need to run synthetics other than prolonging the change interval? What other factors of an ill engine do not show up on a UOA? Does a great UOA with little wear numbers show that your using an oil that is good for your engine?
[ May 30, 2004, 05:30 PM: Message edited by: ryansride2017 ]
[ May 30, 2004, 05:30 PM: Message edited by: ryansride2017 ]