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If you are running short drain intervals, then filter choice really doesn't matter (<5K IMHO).
However if you are running extended drain intervals, then filter choice matters.
I was at 16k on my TDI oil when I did the last Used Oil Analysis; it looked great then, i assume it still looks good at 20k. However I am running a wix full flow (at least decent) + oil guard bypass filter so I'm fairly well filtered . . . .
What kind of drain intervals does your shop run on heavy trucks? Any bypass setups, or just full flow?
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2016 Tesla Model X
2022 Sprinter
Gone 2012 Tesla Model S P85
Gone 2013 Nissan LEAF SV
2012 Nissan LEAF SV
6 speed ALH TDI Swapped in to a 2003 Jetta Wagon
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