McGuillicuddy
Veteran Member
Had a UOA done for the first time. I was shocked to see extremely high lead/copper numbers. I'm worried my bearings are in trouble. Everything else looks pretty reasonable.
Some details:
-Oil is LiquiMoly 5W40
-Oil was collected after driving for about 15 minutes. Car sat for about 20mins after that before collecting.
-Sample was taken in the later part of the drain
-Was collected during some pretty cold weather (early Jan); could cold starts be contributing?
-This oil was changed at the same time that the clutch/flywheel and rear-main seal were replaced. Wondering if this could influence the result at all if any of the clutch material/gear oil got in the oil pan during that process.
I went through part of the massive UOA thread but couldn't find much guidance. Does seem that high copper/lead numbers (even higher than mine) are not unheard of for the ALH but not sure what that means for my oil change interval, or the optimum oil type.
Here are the results:

Would appreciate input from anybody who is more familiar with these things!
Some details:
-Oil is LiquiMoly 5W40
-Oil was collected after driving for about 15 minutes. Car sat for about 20mins after that before collecting.
-Sample was taken in the later part of the drain
-Was collected during some pretty cold weather (early Jan); could cold starts be contributing?
-This oil was changed at the same time that the clutch/flywheel and rear-main seal were replaced. Wondering if this could influence the result at all if any of the clutch material/gear oil got in the oil pan during that process.
I went through part of the massive UOA thread but couldn't find much guidance. Does seem that high copper/lead numbers (even higher than mine) are not unheard of for the ALH but not sure what that means for my oil change interval, or the optimum oil type.
Here are the results:

Would appreciate input from anybody who is more familiar with these things!
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