I know this has been discussed before but there still might be uncertainty about the subject.If we take the same paper element in all filters and you use the formulas of flow dynamics you end up with a very logical result.The thinner the filter and inner filter media the easier the oil can get through to the core.The fatter the filter and filter media the more resistance there will be to flow.So if you want a higher flow filter the thinner one should be best but should clog up sooner due to less filter material.If you lengthen the thin one you can get more life from it and there is more area for flow as well.The oil flow needs of your engine should dictate the type of filter you use.Keep in mind that a fat filter can flow very well if it has got a hi flow filter media in.
Short fat or long and thin oil filter.
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Way to much "theory" going on. What counts is the overall delta-p across the filter. Oil flow through an oil filter is literally forced by the positive displacement oil pump, so what you're tying to describe above doesn't matter. If the media area of the filter was always the same, it wouldn't matter what shape the can and media was.
If oil flow was pushed through by a very small pressure (ie, simply gravity head pressure) then maybe it would matter. With a positive displacement oil pump, the flow isn't due to a "pressure source", it's due to the physical displacement of the oil volume with each turn of the pump. The pressure you see is the result of the volume being forced through a resistive flow path.
Here's bench Flow vs Delta-P test data from Purolator of a medium sized PureOne filter.
PureOne Flow vs PSID
If oil flow was pushed through by a very small pressure (ie, simply gravity head pressure) then maybe it would matter. With a positive displacement oil pump, the flow isn't due to a "pressure source", it's due to the physical displacement of the oil volume with each turn of the pump. The pressure you see is the result of the volume being forced through a resistive flow path.
Here's bench Flow vs Delta-P test data from Purolator of a medium sized PureOne filter.
PureOne Flow vs PSID
Something u should be asking your girlfriend, ha ha
I always just buy the filter to fit the car.
Usually, even between brands, they are approximately the same size.
The only exception is the Purolator to fit my son's Mazda RX8.
It uses a PH6607 FRAM and the Purolator alternate looks 1" longer.
But the Bosch 3300 version is similar in size to the FRAM.
Usually, even between brands, they are approximately the same size.
The only exception is the Purolator to fit my son's Mazda RX8.
It uses a PH6607 FRAM and the Purolator alternate looks 1" longer.
But the Bosch 3300 version is similar in size to the FRAM.
Both. At the exact same time.
Originally Posted By: SilverC6
I always just buy the filter to fit the car.
Usually, even between brands, they are approximately the same size.
The only exception is the Purolator to fit my son's Mazda RX8.
It uses a PH6607 FRAM and the Purolator alternate looks 1" longer.
But the Bosch 3300 version is similar in size to the FRAM.
odd since Bosch = Purolator (it's a P1 without the texture grip)
I always just buy the filter to fit the car.
Usually, even between brands, they are approximately the same size.
The only exception is the Purolator to fit my son's Mazda RX8.
It uses a PH6607 FRAM and the Purolator alternate looks 1" longer.
But the Bosch 3300 version is similar in size to the FRAM.
odd since Bosch = Purolator (it's a P1 without the texture grip)
I try to buy the largest filter that will fit as long as it has the same bypass setting. For my V8 4Runner I use a Mobil 1 M1-209. For the same price I get a tiny bit more capacity and more filter area. What's not to like about that?
Originally Posted By: barkingspider
Something u should be asking your girlfriend, ha ha
No kidding! Blonde or Brunette, as long as she gets the job done what difference does it make?
Something u should be asking your girlfriend, ha ha
No kidding! Blonde or Brunette, as long as she gets the job done what difference does it make?
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