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First off, I'm glad this mistake happened. Nothing was harmed and I learned a lot as a result of digging into it. Here is the first lab result with the mistake I've been running Schaeffer 15w40 for the summer and this is my third extend drain on it. The last 5 analysis's were on this oil...

These are the new style. PF-3001XL and XWS-3002XL. Both are well made. What had me was the ss filter mesh for the PF-3001. Not that I think this set up won't filter as advertised, but rather that I see no need to be changing it at the same interval as the xws-3002. I keep a spare in the truck in...

Was pretty suprised by the amount of metal, even a couple decent chunks about 1.5mm large. This was installed shortly after we bought the van when I flushed the fluid with amsoil ss. Full flush(diy fluid exchange) including pan drop and rock catcher. Van had 285k km at time of flush and filter...

Fast Pto coolers w/ passive filter installed at last OC. Installed pumped cooling loop and filter(magnefine) at 2nd last UOA (10,500km). Loop made about a 10-15 celsuis degree difference. Fast coolers didn't do much. Not sure what is causing the spike in silicon, could this be rtv getting...

Not sure how much the formulation has changed since, but from my UOA this seems to be pretty close.

Post this mainly for data's sake. All UOA in this report are schaeffer 5w40. Engine was rebuilt at 456k km

And this is why I do uoa's! Amsoil claims 50k to 150k + miles for this oil. As you can see it has sheared and oxidized pretty good. Don't mind the new oil values, they are placeholders since I didn't have a voa for this oil a this point. Otherwise, wear metals do look really good imo. This was...

Virgin Analysis

First time poster. Learned a lot over the years here at bitog, thought I'd add my findings for others to learn from. Here is my latest uoa from agat with past history. 4L make up oil. Truck goes through about 1L every 5000km on average, but uses mainly when towing. AL may seem high, but when I...