OK, this a new Toyota Corolla. I ran the original oil 2k miles, then switched to Penz Platinum 5w30 for the next 3k.
UOA Shows the following:
copper 66
Silicon 66
Sodium 38
Magnesium 17
Calcium 1759
Phos 686
Zinc 817
Moly 49
Visc at 100 9.4
other numbers are negligably low. (Iron etc.)
Cenex who did the UOA notes that silicon and copper levels are a little high and should be "monitored".
The copper I can accept as perhaps a little elevated due to the initial wear in process of the engine. The silicon is more worrisome -- the car is never driven in the dirt at all. I worry about an air leak.
Ideas???? Should I worry??
UOA Shows the following:
copper 66
Silicon 66
Sodium 38
Magnesium 17
Calcium 1759
Phos 686
Zinc 817
Moly 49
Visc at 100 9.4
other numbers are negligably low. (Iron etc.)
Cenex who did the UOA notes that silicon and copper levels are a little high and should be "monitored".
The copper I can accept as perhaps a little elevated due to the initial wear in process of the engine. The silicon is more worrisome -- the car is never driven in the dirt at all. I worry about an air leak.
Ideas???? Should I worry??