QIKSLVR

I just received my first oil analysis from Blackstone Labs for my '07 Z. Everything appears failrly good except the lead content is a bit high. They suggest we keep an eye on the lead content in the oil because I track the car.

Does anyone have any experience knowing at what point the lead content in oil is unacceptable; point at which bearings need replacing?

I'd rather replace engine bearings and/or rebuild the engine rather than having to replace an entire engine.

AzDave47

I can't help you on your questions. My results only had 4PPM Lead after 15K miles on the car and 5K on the oil. I'll be doing another oil change/oil test in the next few weeks.

QIKSLVR

My analysis shows 17 ppm w/35,800 mi on the odo.

Dirty Howie

Download the file Blackstone sent in their email to you. Then upload it to PhotoBucket. Then copy the image code from PhotoBucked and paste it into your post. Here is mine:





DH

Random84

The lead sounds suggestive in that it's elevated, but not conclusive either.

What kind of oil and just how much track time? Temps during track events?

ETA: I agree with Howie, post the report to help us out.