Wix XP oil filter Jeep 3.6
- Thread starter JeepJKU85
- Start date
Wix XP filters around 40 to 50 microns where there Purolator is around 20 microns. I'm sure there is more restriction on the Purolator vs the XP because of the filtering quality. The filter is a couple mm longer for a tighter fit causing a little crushing which isn't going to hurt anything, the worst for me are Mopar filters for crushing.
At higher RPM with hot oil? Or at what conditions. How do you know the oil temperature is exactly the same when you're reading the oil pressure?
Efficiency and "dP vs flow" are not always correlated. Especially if the total media area is different with different media designs.
. This was with Wix.
I have found most of the standard WIX filters for the Pentastar to not have the center cage spin freely of the outer media shell. Usually either ratchety or just plain stuck. Will twist sometimes when installed.
Me personally, I would not have swapped it out for that inconsequential of a PSI difference. Engine has a two stage oil pump and will regularly seem 70+ PSI above 2800 rpm.
Me personally, I would not have swapped it out for that inconsequential of a PSI difference. Engine has a two stage oil pump and will regularly seem 70+ PSI above 2800 rpm.
Two-stage variable output oil pump makes it even harder to evaluate what affect the filter has. Only time a difference in dP vs flow of an oil filter might matter is on a race car running near redline with an oil pump that puts out 15 GPM.
What RPM is the engine at with 30-32 PSI of oil pressure with 200-201F oil? After the oil gets to ~200F after a drive, you can check the oil pressure at xyz RPM by just putting it in neutral and holding the revs at say 2500 in the driveway or parking lot - safer that way too since you can look at the dash all you want.
Whatever that means. I still would not have changed it for a 2 PSI noticed difference.
It means that the 2-stage pump doesn't work like an old fashioned spring loaded pressure relief valve type PD pump. As shown in another thread, there's only a few PSI difference in oil filters at 10 GPM with hot oil. Pretty much all oil filters "flow well". The oiling system itself is 10-12 times more flow restrictive than the oil filter.
What software program is this?
My Uconnect stereo.
DON'T TORQUE PLASTIC!!!!!! Tight cap down until it STOPS TURNING!!!!!! The O-Ring in cap seals and prevents cap from coming unscrewed. Not all filter cartridges are the same length. The MOPAR ones fit the best, so that's what I use.
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- Oct 1, 2024
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Agreed regarding the torque spec listed on the cap however after replacing two leaking oil coolers (and using the torque spec) I’ve decided to simply tighten the oil filter cap until it bottoms and leave it at that. I believe it’s true that the oil cap o-ring provides the seal. Looking forward to my current oil cooler lasting longer without leaking than the most recent one following this protocol.
FWIW, my 2014 Jeep JKU with the 3.6 at 193,xxx miles displays oil pressures of 45 (idle) - 90 (2,000 rpm) psi when the engine is cold and warming up. At operating temperature (204 degrees F) the oil PSI displays 29 at idle and 45 at 2,000+ RPM. I typically use the Fram Ultra oil filter.
FWIW, my 2014 Jeep JKU with the 3.6 at 193,xxx miles displays oil pressures of 45 (idle) - 90 (2,000 rpm) psi when the engine is cold and warming up. At operating temperature (204 degrees F) the oil PSI displays 29 at idle and 45 at 2,000+ RPM. I typically use the Fram Ultra oil filter.
This.
With plastic threads on both the cap and filter housing, there is somewhat of a elastic hysteresis of the thread engagement that can give a false feedback of just doing it by hand and stopping at first perception of full stop. I have done plenty of Pentastar oil changes and torqued to spec and gotten a good partial turn.
