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I was wondering what BobIsTheOilGuy members thought about this UOA methodology from Lake Speed Jr's live stream yesterday. Does this seem like a sound method? I think it does.

Does anyone know how to calculate a total wear metals per 1000 miles statistic from a blackstone UOA? Do you just add up all the metals I've put a red square on here and divide by the mileage/1000? So for instance here I got 23 ppm of all the red boxed metals, and 23/2.578 = 8.9 twm per 1k mi. I understand that a shorter OCI will skew the TWM number high as stated in the livestream, so I will go for a 5k OCI next time.

I wasn't sure about the the moly since the VOA for this oil had 70 ppm, so it seems like it shouldn't be counted as a wear metal.

I took a bit of flack on posting this first UOA since I was concerned about the oil viscosity even though the wear metals seemed fine.

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I also found the filter discussion in the video pretty interesting, I didn't realize I was sacrificing efficiency for capacity by going with the long endurance filters, like the Fram Synthetic Endurance I'm using. If I'm going to a 5000 OCI maybe it is not the best choice?

I'll hang up and listen.