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Re: Low micron filters and flow [Re: dnewton3] #5043573
03/15/19 08:07 AM
03/15/19 08:07 AM
Joined: Aug 2011
Posts: 488
GoVols
kstanf150 Offline
kstanf150  Offline

Joined: Aug 2011
Posts: 488
GoVols
Which beer is best 🤔
Cold !!!!🤣

Re: Low micron filters and flow [Re: Spitter] #5043605
03/15/19 08:52 AM
03/15/19 08:52 AM
Joined: Aug 2018
Posts: 446
Georgia
RDY4WAR Offline
RDY4WAR  Offline

Joined: Aug 2018
Posts: 446
Georgia
I'm looking at this same situation. I can get Wix XP filters (51042xp) for about $2.50 cheaper than the Fram Ultra XG3506 filters.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Low micron filters and flow [Re: Spitter] #5043638
03/15/19 09:43 AM
03/15/19 09:43 AM
Joined: Dec 2018
Posts: 253
USA
Farnsworth Offline
Farnsworth  Offline

Joined: Dec 2018
Posts: 253
USA
Oil filters all flow the same low or high micron unless the oil pump relief valve opens or the pump has wear. If talking restriction, differential pressure, using a synthetic with uniform fibers that are smooth and slippery should lower it.

DP goes up when the owner allows a filter to get dirty. So if you like lowest restriction, change the filter of choice before it starts to restrict more. Seems like an obvious statement. Oil filters aren't changing the flow they are like any other restriction in the oil circuit.

See the leaders graphs and explanations, that's where I learned.

Re: Low micron filters and flow [Re: ZeeOSix] #5044322
03/15/19 07:18 PM
03/15/19 07:18 PM
Joined: Mar 2016
Posts: 2,068
Western S.C.
CR94 Offline
CR94  Offline

Joined: Mar 2016
Posts: 2,068
Western S.C.
Originally Posted by ZeeOSix
Mentioning the obvious is even better when actual test data supports the obvious. grin2
My point was to thank dnewton3 for having the patience to repeatedly explain facts we all should've comprehended long ago. Good test data always supports sound logic.


2011 Toyota Prius now at 99K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Low micron filters and flow [Re: Spitter] #5044348
03/15/19 07:40 PM
03/15/19 07:40 PM
Joined: May 2009
Posts: 217
So Cal
Bill_W Offline
Bill_W  Offline

Joined: May 2009
Posts: 217
So Cal
Resistance to flow is futile.
All oil filters will pass oil and the filter bypass valve is insurance. The oil pump will go up to it's pump bypass and ramp down or seals will blow. But low micron filters are a good thing, just the flow issue is over stressed.


Slick
Re: Low micron filters and flow [Re: RDY4WAR] #5044432
03/15/19 08:43 PM
03/15/19 08:43 PM
Joined: Dec 2018
Posts: 453
Fort Worth
Pinoak Offline
Pinoak  Offline

Joined: Dec 2018
Posts: 453
Fort Worth
Originally Posted by RDY4WAR
I'm looking at this same situation. I can get Wix XP filters (51042xp) for about $2.50 cheaper than the Fram Ultra XG3506 filters.

Sounds like $2.5 dollars more in your pocket.
That's really probably the only difference that could ever be measured.

Re: Low micron filters and flow [Re: CR94] #5044468
03/15/19 09:29 PM
03/15/19 09:29 PM
Joined: Jul 2010
Posts: 20,924
PNW
ZeeOSix Offline
ZeeOSix  Offline

Joined: Jul 2010
Posts: 20,924
PNW
Originally Posted by CR94
Originally Posted by ZeeOSix
Mentioning the obvious is even better when actual test data supports the obvious. grin2
My point was to thank dnewton3 for having the patience to repeatedly explain facts we all should've comprehended long ago. Good test data always supports sound logic.


Yes, dnewton3 helps to explain some of these concepts so people can comprehend - his comments are surely appreciated by many. There are many good technical contributors on this board, always has been that way. The obvious isn't so obvious at times ... and sometimes a picture is worth a thousand words, as the saying goes, and helps get a point of understandind across. grin2

Re: Low micron filters and flow [Re: Spitter] #5044707
03/16/19 08:48 AM
03/16/19 08:48 AM
Joined: May 2009
Posts: 217
So Cal
Bill_W Offline
Bill_W  Offline

Joined: May 2009
Posts: 217
So Cal
New guy here again...
Delta P in the more restrictive filter does change because at one RPM before the filter the oil pressure increases at that RPM but is on the restricted inflow. As far as the flow component of oil after the filter that does not change due to the positive displacement gear pump at that RPM and liquid oil does not compress under pressure. More RPM, more flow and it does not matter what filter you choose.

Now if a gas the flow component would be affected, like an airplane wing for instance. And that pressure difference causes lift.

Last edited by Bill_W; 03/16/19 08:58 AM.

Slick
Re: Low micron filters and flow [Re: Spitter] #5044763
03/16/19 09:42 AM
03/16/19 09:42 AM
Joined: May 2009
Posts: 217
So Cal
Bill_W Offline
Bill_W  Offline

Joined: May 2009
Posts: 217
So Cal
But... Where the oil pump bypass does kick in at RPM will be affected by PSI increase and that does affect oil flow. By that time the bearings have a boundary film pressure established though.

Last edited by Bill_W; 03/16/19 09:43 AM.

Slick
Re: Low micron filters and flow [Re: Spitter] #5044786
03/16/19 10:13 AM
03/16/19 10:13 AM
Joined: Oct 2009
Posts: 4,622
Wet side WA
JohnnyJohnson Online content
JohnnyJohnson  Online Content

Joined: Oct 2009
Posts: 4,622
Wet side WA
After only driving for 59 years I have never had a engine failure due to low oil flow. Oh the drama!


2004 Corolla 131893
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74840
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Low micron filters and flow [Re: Bill_W] #5044961
03/16/19 02:23 PM
03/16/19 02:23 PM
Joined: Jul 2010
Posts: 20,924
PNW
ZeeOSix Offline
ZeeOSix  Offline

Joined: Jul 2010
Posts: 20,924
PNW
Originally Posted by Bill_W
But... Where the oil pump bypass does kick in at RPM will be affected by PSI increase and that does affect oil flow. By that time the bearings have a boundary film pressure established though.


By the time an oil pump hits pressure relief there's still going to be quite a bit of oil flow going on. Most old fashioned fixed PD oil pumps are over designed in terms of output volume anyway. However, with the new trend for automakers to cut oil flow with variable flow pumps to gain a sliver of MPG, a large flow restriction down stream from the oil pump could become more concerning to engine health if the pump lacks proper flow volume and pressure control.

Re: Low micron filters and flow [Re: ZeeOSix] #5045107
03/16/19 05:06 PM
03/16/19 05:06 PM
Joined: May 2009
Posts: 217
So Cal
Bill_W Offline
Bill_W  Offline

Joined: May 2009
Posts: 217
So Cal
Originally Posted by ZeeOSix
Originally Posted by Bill_W
But... Where the oil pump bypass does kick in at RPM will be affected by PSI increase and that does affect oil flow. By that time the bearings have a boundary film pressure established though.


By the time an oil pump hits pressure relief there's still going to be quite a bit of oil flow going on. Most old fashioned fixed PD oil pumps are over designed in terms of output volume anyway. However, with the new trend for automakers to cut oil flow with variable flow pumps to gain a sliver of MPG, a large flow restriction down stream from the oil pump could become more concerning to engine health if the pump lacks proper flow volume and pressure control.


Kinda makes it a non-issue until the "tearolator" comes in to play.


Slick
Re: Low micron filters and flow [Re: Bill_W] #5045113
03/16/19 05:10 PM
03/16/19 05:10 PM
Joined: Jul 2010
Posts: 20,924
PNW
ZeeOSix Offline
ZeeOSix  Offline

Joined: Jul 2010
Posts: 20,924
PNW
Originally Posted by Bill_W
Originally Posted by ZeeOSix
Originally Posted by Bill_W
But... Where the oil pump bypass does kick in at RPM will be affected by PSI increase and that does affect oil flow. By that time the bearings have a boundary film pressure established though.


By the time an oil pump hits pressure relief there's still going to be quite a bit of oil flow going on. Most old fashioned fixed PD oil pumps are over designed in terms of output volume anyway. However, with the new trend for automakers to cut oil flow with variable flow pumps to gain a sliver of MPG, a large flow restriction down stream from the oil pump could become more concerning to engine health if the pump lacks proper flow volume and pressure control.


Kinda makes it a non-issue until the "tearolator" comes in to play.


Tearolators help out weak oil pumps. laugh

Re: Low micron filters and flow [Re: Bill_W] #5045170
03/16/19 05:59 PM
03/16/19 05:59 PM
Joined: Dec 2018
Posts: 453
Fort Worth
Pinoak Offline
Pinoak  Offline

Joined: Dec 2018
Posts: 453
Fort Worth
Originally Posted by Bill_W
Originally Posted by ZeeOSix
Originally Posted by Bill_W
But... Where the oil pump bypass does kick in at RPM will be affected by PSI increase and that does affect oil flow. By that time the bearings have a boundary film pressure established though.


By the time an oil pump hits pressure relief there's still going to be quite a bit of oil flow going on. Most old fashioned fixed PD oil pumps are over designed in terms of output volume anyway. However, with the new trend for automakers to cut oil flow with variable flow pumps to gain a sliver of MPG, a large flow restriction down stream from the oil pump could become more concerning to engine health if the pump lacks proper flow volume and pressure control.


Kinda makes it a non-issue until the "tearolator" comes in to play.

Just stand on your own 2 feet my man. You don't have to throw out parroted talking points to respect your self. Quite the contrary actually. Anyway witnessing it makes me embarrassed for you.

Re: Low micron filters and flow [Re: Pinoak] #5045203
03/16/19 06:28 PM
03/16/19 06:28 PM
Joined: May 2009
Posts: 217
So Cal
Bill_W Offline
Bill_W  Offline

Joined: May 2009
Posts: 217
So Cal
No issues here... Never claim to be perfect. Just learning. And do not be embarrassed Sir. I am not.

https://www.clublexus.com/forums/ls...ound-on-filter-tearing-at-purolator.html

Last edited by Bill_W; 03/16/19 06:37 PM.

Slick
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