Oil Filter: Wix vs Mopar
#16
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Year: 1996
Model: Cherokee
Engine: 4.0L
Originally Posted by KJamesJR
I don't see the appeal of running a larger filter.
You're putting on a larger filter. A filter that's drawing in more oil, thus taking it from the engine. However your lubrication system need 6 quarts, so you add more oil. However it can only sustain a certain amount in the engine, before fouling your sparkplugs, or creating heavier leaks. At that point you're adding more, but just enough to keep it safe on the dipstick.
Now you have a larger filter, but it needs to cycle through more oil anyways just to keep it clean. At this point... You just have more oil to clean because it's all getting cycled through your engine, picking up gunk.
I don't know if my explanation is making sense so i'll try to break it down into ratios...
Let's say factory specs =
10/10 Oil/Filtration
Larger filter alone =
5/15 oil/filtration
Because the larger filter is carrying more oil, thus you're loosing what you need for lubrication.
More oil + Larger filter =
10/10
Now things are back in balance, you're just carrying more oil to accommodate a larger filter.
Now you have a larger filter... But it's cycling a greater volume of oil. Thus nothing changes. The only thing more oil is going to get you, is diluted dirt. Not as concentrated as it would be, therefore less mass, therefore more debris that will slip through your cellulose filtration.
I hope this makes sense to someone.
You're putting on a larger filter. A filter that's drawing in more oil, thus taking it from the engine. However your lubrication system need 6 quarts, so you add more oil. However it can only sustain a certain amount in the engine, before fouling your sparkplugs, or creating heavier leaks. At that point you're adding more, but just enough to keep it safe on the dipstick.
Now you have a larger filter, but it needs to cycle through more oil anyways just to keep it clean. At this point... You just have more oil to clean because it's all getting cycled through your engine, picking up gunk.
I don't know if my explanation is making sense so i'll try to break it down into ratios...
Let's say factory specs =
10/10 Oil/Filtration
Larger filter alone =
5/15 oil/filtration
Because the larger filter is carrying more oil, thus you're loosing what you need for lubrication.
More oil + Larger filter =
10/10
Now things are back in balance, you're just carrying more oil to accommodate a larger filter.
Now you have a larger filter... But it's cycling a greater volume of oil. Thus nothing changes. The only thing more oil is going to get you, is diluted dirt. Not as concentrated as it would be, therefore less mass, therefore more debris that will slip through your cellulose filtration.
I hope this makes sense to someone.
#17
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Thread Starter
Your logic is kind of skewed. A larger oil filter has more filtering surface area and allows up to another half quart of oil to aid in lubricating and cooling the engine enternals. A half of quart of oil is not going to offer much of a gain, but it's not going to hurt anything either.
Although it has a larger filtration surface, it's pushing more volume. Therefore it's all getting saturated equally... Then there's the dilution theory. The carbon particles, and other varying dirt, is getting thinned out. If the mass isn't there, nothings going to be picked up by the filter.
Of course, my logic could just be completely askew... At that point I have no idea what I'm talking about.
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#22
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Year: 88, 89, 93 & 99
Model: Cherokee
Engine: 4.0
I use bosch or mopar filters only... Came on here and everyone was all about wix so I tried one with my last oil change and will never use them again. For the first time in the 18 years I've owned my 93 I was getting dry starts. After a week of them I changed to a mopar filter and she's happy again
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