oil filters and oil pressure increase ?

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rustytoolss

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Long ago I read some information about different brands of oil filter that "could help" increase oil pressure "a bit" . The filters only helped a small amount 2-3 psi ( as I recall)
My old 273 has low hot pressure at idle. Does anyone know of any oil filters that "many improve" my low hot idle oil pressure ? I know I should change the bearings and such. But that's not in the cards at this time.
 
Oil filters cannot “increase pressure.”
If they do it’s because of restriction.
Your loss is as you put it bearings and such.

Sorry but no way around it. Clearance is clearance.
 
I haven't heard of such a thing, I would just put thicker oil in it... Something with -40 or -50 viscosity rating (like a 15W-40 or 20W-50). Just don't use it in the winter time.
 
Go with a thicker oil! What are you using now?
In my 318 I was using quite a bit of oil so I switched from 10w30 to 20w40 with Lucas additive and it has helped quite a bit!!
I have noticed some improvement in oil pressure also especially at idle.
 
I haven't heard of such a thing, I would just put thicker oil in it... Something with -40 or -50 viscosity rating (like a 15W-40 or 20W-50). Just don't use it in the winter time.
Thats what I will have to try..Thanks... I did not see how the filter could change the pressure. But thought I would ask... I fell for it.
 
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A oil filter creates is a restriction to flow or in other words a pressure drop. The oil pressure will be higher entering the filter than it is leaving the filter. The pressure drop will vary with the flow rate of the oil , but it is generally it is usually only a few PSI's. All factory oil pressure sensor readings locations are downstream of the oil filter so you are always reading the oil pressure after the filter.
 
How are you determining that your oil pressure is low at idle?
 
Long ago I read some information about different brands of oil filter that "could help" increase oil pressure "a bit" . The filters only helped a small amount 2-3 psi ( as I recall)
My old 273 has low hot pressure at idle. Does anyone know of any oil filters that "many improve" my low hot idle oil pressure ? I know I should change the bearings and such. But that's not in the cards at this time.

Might have been me, I commented one time in an oil filter discussion, about switching from a k-n filter to a mopar filter, and the pressure went up 2-3 pounds at idle. Running a purolater now, pressure is about the same .
 
The needle drops?? Lol
I know that oil pressure is supposed to be lower at idle but I don't know how low is LOW
I walked right into that one. :lol: My oil pressure warning light used to come on at idle till I changed it (it was the OE sender)

What are you getting for pressure? My 67 273 has an 8lb switch (IIRC) Mine runs about 10 lbs at hot idle with 30w (higher with 40w) about 100,000 miles on last rebuild. (50 to 60 lbs at speed)
 
I walked right into that one. :lol: My oil pressure warning light used to come on at idle till I changed it (it was the OE sender)

What are you getting for pressure? My 67 273 has an 8lb switch (IIRC) Mine runs about 10 lbs at hot idle with 30w (higher with 40w) about 100,000 miles on last rebuild. (50 to 60 lbs at speed)
Haha. I'm not sure honestly my gauge has three dashes a 0 a 40 and a 90! Usually when idling cold it will be right at 40 when its warm it will be right to the left of 40 while driving it's quite a bit to the right of 40. So I'm guess like 30 to 32 during idle and 50 to 55 during driving. That is in a magnum 318 with 260k miles.
 
IMHO

You're good to go.(250,000 is a lot of miles)

If you want, try a 40w variant at your next oil change and see if you like the results better.
 
Haha. I'm not sure honestly my gauge has three dashes a 0 a 40 and a 90! Usually when idling cold it will be right at 40 when its warm it will be right to the left of 40 while driving it's quite a bit to the right of 40. So I'm guess like 30 to 32 during idle and 50 to 55 during driving. That is in a magnum 318 with 260k miles.

Those factory oil pressure gauges on the Magnum vehicles aren't very accurate, confirm with a mechanical oil pressure gauge what the "real" pressure is if you really want to be sure. I think you should be OK though, unless you're getting <10psi at idle you're solid. BTW if you really have 30 psi at hot idle that's damn good for an engine with 260k miles!
 
There are two filters that are the best to use and they are both made by WIX. They are "WIX" and "NAPA Gold" Most engine builders recommend these filters. They are a high flow filter all my vehicles get WIX filters. I won't run anything else on my Diesel's either.

Buy some filters and cut them in half length wise. You will see the difference in drain back/ bypass valve and filter assembly.
 
There are two filters that are the best to use and they are both made by WIX. They are "WIX" and "NAPA Gold" Most engine builders recommend these filters. They are a high flow filter all my vehicles get WIX filters. I won't run anything else on my Diesel's either.

Buy some filters and cut them in half length wise. You will see the difference in drain back/ bypass valve and filter assembly.

I tried to find a short WIX , but couldn`t . The purolater claims to be made in America ---??
I have to run a short filter like on the old 4.7 pick ups , because of my thick radiator and shroud. I change it often-
 
Might have been me, I commented one time in an oil filter discussion, about switching from a k-n filter to a mopar filter, and the pressure went up 2-3 pounds at idle. Running a purolater now, pressure is about the same .
Knew I read it some place.
 
I run the Mopar 090 on everything but my 'stang. Never had an issue....
 
I run Baldwin B34 filter in both my vehicles. Great price, made in U.S. and certified for use in commercial and industrial engines with very good filtration specs. You just have to buy them through Grainger Industrial Supply they aren't sold in stores.
 
If an oil filter increases pressure, that means it flows "more" than one it replaced. If an oil filter flows "more" than one it replaced, that means it lets more oil through. What else does it let through? Looking for more oil pressure from a filter? Nonsense.
 
If an oil filter increases pressure, that means it flows "more" than one it replaced. If an oil filter flows "more" than one it replaced, that means it lets more oil through. What else does it let through? Looking for more oil pressure from a filter? Nonsense.
may be nonsense to you, I stated a proven fact, don't give A RATS *** , ONE WAY OR ANOTHER !!
 
may be nonsense to you, I stated a proven fact, don't give A RATS *** , ONE WAY OR ANOTHER !!

Yes, and like I said, the pressure goes up on the K&N the same reason the K&N air filter flows more air. It lets more "stuff" through. "Stuff" is everything. Oil, dirt and all. I'll stay with WIX.
 
Pressure drop across the filter should be kept to a minimum. You can over filter an oil. Amsoil did it years ago. There will always be trash floating around in an engine. Always has been, always will be. If you filter all of it out, you will reduce oil flow to the engine for no reason.
 
Yes, and like I said, the pressure goes up on the K&N the same reason the K&N air filter flows more air. It lets more "stuff" through. "Stuff" is everything. Oil, dirt and all. I'll stay with WIX.

My 505 had a couple pounds less oil pressure with the K-N , I think less restriction / high flowing filter. When I changed to the m090 mopar filter it went up 2/3 pounds.
I watch it very closely, have never had enough hot idle oil pressure to suit me . I have to run short filters because of shroud room.
 
Less restrictive doesn't absolutely equate to less performance/filtering. Consider panty hose nylon as filter element... 2 or 3 layers would be 2 or 3 times restrictive. If no debris passes through the first layer, those additional layers are not required. So we can't know that a less restrictive filter is less filtering until we cut all of them open and study their element/design.
Or just apply simple minded concept, run the less restrictive filter and replace it more frequently, assuming the lesser element clogs sooner.
 
Less restrictive doesn't absolutely equate to less performance/filtering. Consider panty hose nylon as filter element... 2 or 3 layers would be 2 or 3 times restrictive. If no debris passes through the first layer, those additional layers are not required. So we can't know that a less restrictive filter is less filtering until we cut all of them open and study their element/design.
Or just apply simple minded concept, run the less restrictive filter and replace it more frequently, assuming the lesser element clogs sooner.

It does most certainly with air filters. It's been proven in many studies and comparisons. It stands to reason the oil filter would be similar. I'm simple minded anyway. I have better things to think about than gettin horsepower from a filter of any kind. I just pick a good brand and stick with it, changing it regularly.
 
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