Oil filter question.
Le Mans Master
Joined: Jun 2003
Posts: 9,251
Likes: 217
From: 2007 Nat'l Corvette Challenge 11.50 index Champ. New Jersey
Re: Oil filter question. (Aggie99)
Just installed the AC Delco Ultraguard UPF44 on Saturday. Hard to find them though, so I got a case from Fred Beans. They're a forum sponsor. Good, fast service. They are approx. $5 each. Good luck!
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: Oil filter question. (Aggie99)
Who prefers what oil filter & why & how much do they run?
Thanks in advance.
Thanks in advance.
Their filter seems to be a good mix of high flow and good filtering. I started with the Delco UPF 44 ultra but didn't like the resulting low oil pressure.
Here is an interesting test if you want to read up on filtration vs flow.
http://home.earthlink.net/~memphis3/...lters/merc.htm
If you can't find them locally you can order them from http://www.adiesel.com/
Race Director
Joined: May 2001
Posts: 15,323
Likes: 2,077
From: Guelph, Ontario
Re: Oil filter question. (vetdude)
Here is the updated version (with more filters added) of that study that Rich posted about:
http://www.oilfilterstudy.com/
You'll notice the UPF filters do not flow as well as many others out there.
http://www.oilfilterstudy.com/
You'll notice the UPF filters do not flow as well as many others out there.
Team Owner
Joined: Jan 2003
Posts: 21,234
Likes: 19
From: Freestate Corvette Club! Elkridge, MD
St. Jude Donor '17
Re: Oil filter question. (Patman)
Here is the updated version (with more filters added) of that study that Rich posted about:
http://www.oilfilterstudy.com/
You'll notice the UPF filters do not flow as well as many others out there.
http://www.oilfilterstudy.com/
You'll notice the UPF filters do not flow as well as many others out there.
So use the results carefully.
[Modified by Ragtop_Rob, 7:08 AM 5/26/2004]
Instructor
Joined: Jul 2003
Posts: 101
Likes: 0
Re: Oil filter question. (Aggie99)
I've been using Amsoil synthetic oil and Amsoil filters for over 8 years now, in every car, truck, tractor, ATV, mower, etc. Every vehicle I've owned got better gas mileage after switching to Amsoil. It's not cheap though, oil is about $6 a quart and filters are $7+. My $.02
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: Oil filter question. (Ragtop_Rob)
Here is the updated version (with more filters added) of that study that Rich posted about:
http://www.oilfilterstudy.com/
You'll notice the UPF filters do not flow as well as many others out there.
While that test is fascinating - it says nothing as to the quality of the filter. The test uses a UPF filter 1218 that is not even manufactired anymore and not the same as the UPF44 used on the LS1. To say every UPF filter from the past is like every current or future version is not valid. Additionally, it tests the flow at 10 psi (FAR less than your oil pump produces even at a stumbling idle). Also the test was conducted with oil at 70 degrees, again no where near real world temps.
So use the results carefully.
[Modified by Ragtop_Rob, 7:08 AM 5/26/2004]
http://www.oilfilterstudy.com/
You'll notice the UPF filters do not flow as well as many others out there.
While that test is fascinating - it says nothing as to the quality of the filter. The test uses a UPF filter 1218 that is not even manufactired anymore and not the same as the UPF44 used on the LS1. To say every UPF filter from the past is like every current or future version is not valid. Additionally, it tests the flow at 10 psi (FAR less than your oil pump produces even at a stumbling idle). Also the test was conducted with oil at 70 degrees, again no where near real world temps.
So use the results carefully.
[Modified by Ragtop_Rob, 7:08 AM 5/26/2004]
[Modified by Richin Chicago, 8:14 AM 5/26/2004]
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Le Mans Master
Joined: Oct 1999
Posts: 8,205
Likes: 40
From: Tucson AZ
Re: Oil filter question. (Radiant Heat)
I've been using Amsoil synthetic oil and Amsoil filters for over 8 years now, in every car, truck, tractor, ATV, mower, etc. Every vehicle I've owned got better gas mileage after switching to Amsoil. It's not cheap though, oil is about $6 a quart and filters are $7+. My $.02
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Re: Oil filter question. (carpe dm)
The AMSOIL SDF filters are very good, as the link above shows.
There are some results from a test AMSOIL contracted to an independent lab on this page:
AMSOIL Oil Filter Info
FYI, if you become an AMSOIL preferred customer ($10 for six months), you can buy AMSOIL products at about 15-20% discount.
AMSOIL Preferred Customer Program
There are some results from a test AMSOIL contracted to an independent lab on this page:
AMSOIL Oil Filter Info
FYI, if you become an AMSOIL preferred customer ($10 for six months), you can buy AMSOIL products at about 15-20% discount.
AMSOIL Preferred Customer Program
Drifting
Joined: May 2000
Posts: 1,917
Likes: 3
From: Southern NH
Re: Oil filter question. (Subdriver)
UPF44 filters have very good performance and filtering efficiency. If I can't get one, I've used Mobil-1 which is basically the exact same filter (apparently with a stronger casing and more $$$).
Drifting
Joined: Feb 2004
Posts: 1,250
Likes: 0
From: Katy TX
St. Jude Donor '08-'09
Re: Oil filter question. (Aggie99)
I used a Mobil1 filter. My oil pressure dropped through out the entire range of driving. I have also asked does anyone know where the oil pressure is sensed from, before the oil filter or after. If before than the delta pressure is much lower across the mobil filter than the original, good sign, isnt working the oil pump as hard. If after the oil filter than the drop in pressure may have me concerned.
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: Oil filter question. (dadsturn)
I used a Mobil1 filter. My oil pressure dropped through out the entire range of driving. I have also asked does anyone know where the oil pressure is sensed from, before the oil filter or after. If before than the delta pressure is much lower across the mobil filter than the original, good sign, isnt working the oil pump as hard. If after the oil filter than the drop in pressure may have me concerned.
Pro
Joined: Mar 2004
Posts: 512
Likes: 0
Re: Oil filter question. (Aggie99)
Here is a interesting link where the writer states that the reason the "UPF" filters were discontinued was because of pressure drop across the filter which could cause the oil to bypass the filter...
http://caddyinfo.netgetgoing.com/howtooilfilters.htm
I've also read that Champion has said that they haven't made any of the "UPF" filters for AC Delco for over a year. Someone else must be making them since AC Delco started putting them out again. Not sure if that's good or bad, but thought some of you might want to know.
[Modified by Donovan 572, 9:41 PM 5/27/2004]
http://caddyinfo.netgetgoing.com/howtooilfilters.htm
I've also read that Champion has said that they haven't made any of the "UPF" filters for AC Delco for over a year. Someone else must be making them since AC Delco started putting them out again. Not sure if that's good or bad, but thought some of you might want to know.
[Modified by Donovan 572, 9:41 PM 5/27/2004]
Drifting
Joined: May 2000
Posts: 1,917
Likes: 3
From: Southern NH
Re: Oil filter question. (Donovan 572)
Here is a interesting link where the writer states that the reason the "UPF" filters were discontinued was because of pressure drop across the filter which could cause the oil to bypass the filter...
http://caddyinfo.netgetgoing.com/howtooilfilters.htm
I've also read that Champion has said that they haven't made any of the "UPF" filters for AC Delco for over a year. Someone else must be making them since AC Delco started putting them out again. Not sure if that's good or bad, but thought some of you might want to know.
[Modified by Donovan 572, 9:41 PM 5/27/2004]
http://caddyinfo.netgetgoing.com/howtooilfilters.htm
I've also read that Champion has said that they haven't made any of the "UPF" filters for AC Delco for over a year. Someone else must be making them since AC Delco started putting them out again. Not sure if that's good or bad, but thought some of you might want to know.
[Modified by Donovan 572, 9:41 PM 5/27/2004]
http://www.shoclub.com/lubrication-o...n-oilpart5.htm
The reason UPF44 filters were brought back to the market was predominantly because of Corvette owners request to continue making this premium filter.
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: Oil filter question. (JC in XTC5)
Here is a interesting link where the writer states that the reason the "UPF" filters were discontinued was because of pressure drop across the filter which could cause the oil to bypass the filter...
http://caddyinfo.netgetgoing.com/howtooilfilters.htm
I've also read that Champion has said that they haven't made any of the "UPF" filters for AC Delco for over a year. Someone else must be making them since AC Delco started putting them out again. Not sure if that's good or bad, but thought some of you might want to know.
[Modified by Donovan 572, 9:41 PM 5/27/2004]
Funny. Other tests had found UPF filters were tested and comfirmed Delco's claims of high quality and performance, and in fact the filtering efficiencies were achieved while maintaining high flow rates (i.e. low differential pressure).
http://www.shoclub.com/lubrication-o...n-oilpart5.htm
The reason UPF44 filters were brought back to the market was predominantly because of Corvette owners request to continue making this premium filter.
http://caddyinfo.netgetgoing.com/howtooilfilters.htm
I've also read that Champion has said that they haven't made any of the "UPF" filters for AC Delco for over a year. Someone else must be making them since AC Delco started putting them out again. Not sure if that's good or bad, but thought some of you might want to know.
[Modified by Donovan 572, 9:41 PM 5/27/2004]
Funny. Other tests had found UPF filters were tested and comfirmed Delco's claims of high quality and performance, and in fact the filtering efficiencies were achieved while maintaining high flow rates (i.e. low differential pressure).
http://www.shoclub.com/lubrication-o...n-oilpart5.htm
The reason UPF44 filters were brought back to the market was predominantly because of Corvette owners request to continue making this premium filter.