While we are on the subject, something you may or may not know. Looking at a filter substitution guide, which I have done several times so as to reduce the types of filters necessary to service my equipment, I obviously look for the smallest micron filtration number.
What you have to remember is that "full flow" rated filters have a limit as to how small a particle they will allow to pass, usually 20 microns, give or take to allow the volume of oil to pass that the engine requires.
On OTR diesels, you will find 2 filters, a full flow and a partial flow. The partial flow only gets about 10% of the oil volume (due to internal restrictions) but it's of a much tighter media limiting flow-through to around 5 microns and is in there to clean up the leftovers......one of the reasons why you get a million miles between major overhauls.
Course you could do it all with one filter but to get the full flow, it would be huge.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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