[TCSGTO]

I had Blackstone do a UOA on a fresh engine with about 2K miles on it and it had a higher level of lead also, around 50 IIRC. Copper and tin were low and everything else looked good so they pretty much told me the same thing as thy told OP.
Was running Valvoline VR-1 conventional with no additives and always ran unleaded gas.

[Jay S]

Originally Posted by TCSGTO

I had Blackstone do a UOA on a fresh engine with about 2K miles on it and it had a higher level of lead also, around 50 IIRC. Copper and tin were low and everything else looked good so they pretty much told me the same thing as thy told OP.
Was running Valvoline VR-1 conventional with no additives and always ran unleaded gas.

I guess they have to say something about it.

I would not be at all worried about it. Lead will leach easily. It can get up to a couple hundred ppm just by a small scratch in a bearing. It takes almost nothing to raise it to 100ppm from fuel, a lead fuel can make the number a couple thousand ppm, and can read high for a long time after it isn’t even used anymore. The tin and copper are the problem metals, lead will usually go up when they go up.