lets think about this for just a second
I'm not going to throw out that i'm a diesel mechanic. Lets just stick with some basic facts on this IDI motor's. First off at 20 microns (oil filter) this isze particulate that is in the oil has no ill factor on the bearings the motor what so ever. There are a lot of mis nomers on WMO. one of the first is that when its black its dirty.
Not true its been over heated and or has unburnt fuel in it from passing pass the compression and oil rings. Since we know that the diesel fuel being put into the engine is clean and the engine oil is clean there are simply no contaments to enter the system at the burn time. Or i should say what causes your diesel oil to become black when your gas car stays clean.
now sludge is a factor kinda but really hard carbon is the issue built up in a nasty old non serviced engine. I agre this can factor in, but remember that i said filter the oil with a engine oil filter at collection. No reason here to get into settling of oil as every WVO guy knows how that is the best filter in the world if you have time. So a guy gets his oil changed at quiky world the oil dropped and it settles in a bin for a a few hors then is transferred to a storage tank by gravity. this is one hell of a settling set up i have found. the oil sets for weeks in most locations. the bottom of this tank must be nasty but thats from settling (filter it, dont suck off the bottom and treat it like VO). Your going to leave every thing bigger than 20 microns in the transfer pump filter. With that said that means the oil you are collecting into your storage tank is actually clean enough to go back into the car it came out of with no harmful effects.
In a IDI IP and all the otheres until you get to some large commercial euipment there are no internal screens or filters in the IP or the insjector it self. I would have to measure a injector orfice but I know just from looking down the barrel of one that some thing many times 20 microns will flow through it with now issues. The pump just sucks it it ion and crams it out on a huge volume with no small orfices at all so the pump is a non issue here. any one questioning this just needs to take one apart and see how un HI TECH the pumps are.
Now for wmo verses vo or diesel hands down your going to get more miles out of your engine, IP injectors etc from running wmo filtered to at least what we would run in the crank case 20 microns. Dont do this test but just think about it. change your oil put in clean VO and run it. i'm guessing it blow up in a few miles but we can be sure it will blow up VO is not a good lube and would make a poor motor oil. Lest try that same thing with diesel, we all know what happens iof your fuel pump fails and fills that crank case with diesel it takes the motor with it. HMMMMM now lets take that WMO and run it. My point is that wmo is lube and its designed to lubricate as you know becuase your truck motor will only work with it.
I'm just trying to save you guys some money and time, i dont post alot but when i do its only to help out. there is nothing wrong with filtering to 2 microns at all. but the only reason you do this is becuase the filters for fuel are 2 microns. which for a IP or injector is completly over kill by so many factors. saying that you need to filter to 5 or less is like exxon saying you cant drive on wmo it wont work. We all need a class in partical size 20 microns is so very small and 2 microns is incredible.
On the flip side to switching to oil filters for filtering oil is that you can use used filters and get them for free at the local oil chnage place which you should be able to get your oil for a bout .25 cents a gallon or free. and like i said before i have never had a filter issue yet becuase wmo is so much cleaner than wvo during the whole process.