54,000 Mile Oil Analysis - Increased Lead

[sdsteele2]

In this context PPM can be thought of like this; for 1000 grams of motor oil there would be 7 milligrams of lead. Typically distributed as very very tiny particles.

I have asked this question to blackstone and waiting for a response.

I have also asked them about the right method of filling the sample container. I think I have not been consistent in how I take the sample as far as when/how I fill the sample container during the draining process. For example, in this last sample I filled the half of the container a little after opening the drain plug and the last half was towards really the end. The thinking was I would get a bit of the oil thats at the bottom of the sump and a bit at the top. Historically, in the very early samples I sent to them I always filled up the container all the way right after draining the oil. I dont know if this can be a reason for some discrepancy. So it might be that I was getting the "clean" oil in the previous samples but in the last sample I really filled half of the container with pretty much the bottom of the sump's oil.

Sponsored

 

[Hack]

In this context PPM can be thought of like this; for 1000 grams of motor oil there would be 7 milligrams of lead. Typically distributed as very very tiny particles.

If true, then the GT350's ~4.3 kg of oil would contain 30 mg of lead at 7 ppm. Which I think would be 0.3 cc. More than I would have expected. Maybe I did the math wrong.