I read the article on the oil filter studies, my question I guess is do the best filtering oil filter starve the motor for oil because of the lack of flow? or should I use a high flowing filter? I have a 2004 Chevy 4x4 crewcab 5.3 v8? I would think the best filtering filters would still supply plenty of oil to the motor, I cant see someone making a oil filter with too much filtering?
Need some cold hard facts on oil filters
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No filter will starve the engine of oil.
That's why there is a by-pass valve. Worst case is you get unfiltered oil for an unspecified time length. When the valve closes, you go back to 100% filtration through the element.
Even if the by-pass valve fails and sticks closed,you get a temporary starvation, the pressure build up will collapse the element. Then you don't get any filtering, but you also don't starve the engine of oil, either..
That's why there is a by-pass valve. Worst case is you get unfiltered oil for an unspecified time length. When the valve closes, you go back to 100% filtration through the element.
Even if the by-pass valve fails and sticks closed,you get a temporary starvation, the pressure build up will collapse the element. Then you don't get any filtering, but you also don't starve the engine of oil, either..
Performance of oil filters is indicated by capacity in grams as measured according to SAE HS806.
I noticed the Mobil 1 filtered very good, but didn't flow well.. It just seems to me that flow is not all that important, compared to filtering especially if the filter with the best filtration will never starve the motor of oil, because of how well it filters the oil, is that correct?
Some folks feel that flow is most important and others feel that filtration is more important. The discussion may never end. I went to Purolator and asked them about the flow rates of their Pure One filter (one of the best filtering and most restrictive flow in the study). Their answer was that the Pure One filter meets or exceeds all the flow requirements of the automaker for the applications the filter is speced for. Make your choice and run your engine.
Performance of filters is more than dirt holding capacity.
I wouldn't think a oil filter company would make a oil filter to restrictive to were it would starve the motor. As for my personal opinion then I would allways buy the best filtering filter.
I cant see buying a filter that flows real well, but doesn't really filter that good? kind of defeats the purpose of a oil filter?
I think this question has been of allot of peoples minds, and it kinda cleared things up for me?
Thanks
Coop
I cant see buying a filter that flows real well, but doesn't really filter that good? kind of defeats the purpose of a oil filter?
I think this question has been of allot of peoples minds, and it kinda cleared things up for me?
Thanks
Coop
Only a certain percentage of the holes in the filter is the stated size. The one that was linked stated a rangre of 4 microns to 24 microns for one media type. Must be why they use the multi-pass rating.
Around 1978 I ran across a salesman with aluminum spin on shell that held rolls of toilet paper to filter the oil. No, I didn't buy one. I thought that the fact that they lasted long enough to sell was funny.
Around 1978 I ran across a salesman with aluminum spin on shell that held rolls of toilet paper to filter the oil. No, I didn't buy one. I thought that the fact that they lasted long enough to sell was funny.
Ahh, but it can. You can have the best of both by using the best flowing spin-on filter in conjunction with a bypass filter. Most bypass filters filter down to at least 1 micron and do such a good job of cleaning that they make both your engine and oil last longer. The reason for this is that they have many times the filter media than the FF(spin on) has and slowly filters a few CC's per second. Yes, some of these use bathroom tissue such as toilet paper or paper towel rolls. Our Military/Air force/ etc exploits these filters and SAE did a scientific study that claimed up to two to three times more engine life.
All spin on filters filter down to 1 micron. Even sub micron.
So do all by-pass filters.
The question is how efficiently.
Automotive OEM's claim filtration should be in the 5-25 micron range. Because those are the particle sizes that create the most wear within the engine. The better you remove them, the longer the engine life.
So do all by-pass filters.
The question is how efficiently.
Automotive OEM's claim filtration should be in the 5-25 micron range. Because those are the particle sizes that create the most wear within the engine. The better you remove them, the longer the engine life.
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