Technical Oil Filter Test
Thread Starter
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
Technical Oil Filter Test
I am a member of another forum on oil analysis and they are currently starting an oil filter study much more comprehensive then the old minimopar study of cut up filters. The flow rate is being measured with some interesting initial results. Check it out at:
http://theoildrop.server101.com/ubb/...6;t=000513;p=1
http://theoildrop.server101.com/ubb/...6;t=000513;p=1
Le Mans Master
Joined: Mar 1999
Posts: 6,744
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From: delmont pa
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Re: Technical Oil Filter Test (vettenuts)
this test shows why using heavier oil that 5W -30 on startup will cause the oil filter bypass to open and let unfiltered oil thru the engine. this is also why blocking the oil filter bypass is a good thing. :chevy
Thread Starter
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
Re: Technical Oil Filter Test (clem zahrobsky)
Not sure I agree on blocking the by-pass. I think this test shows that your engine may starve for oil if you do so. It should be interesting when they get the heaters working and then do tests with the oil at temperature.
Instructor
Joined: Apr 2002
Posts: 172
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Re: Technical Oil Filter Test (vettenuts)
If you are interested in ranking the best oil filters, check out this site: http://www.minimopar.net/oilfilters.html
You might find it very interesting.
You might find it very interesting.
Race Director
Joined: Dec 2000
Posts: 19,304
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From: San Diego CA
Re: Technical Oil Filter Test (vettenuts)
Ha, I wish I could see the looks on some of these guys' faces when they saw that the least expensive filter, a Fram, flowed best!
I remember reading a Consumer Reports test on oil filters that showed Fram as doing surprisingly well.
Thanks for the link - very interesting!
I remember reading a Consumer Reports test on oil filters that showed Fram as doing surprisingly well.
Thanks for the link - very interesting!
Racer
Joined: Feb 2001
Posts: 330
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From: Baja Oregon
Re: Technical Oil Filter Test (Toyride)
If you are interested in ranking the best oil filters, check out this site: http://www.minimopar.net/oilfilters.html
You might find it very interesting.
You might find it very interesting.
Knize's study has been floating around the 'net for ages . . . and it is very informative (anyone that reads it pretty much goes on the Fram 'wagon' :D ), but it hasn't been updated in nearly 3 years and some of the info is getting dated. :)
Instructor
Joined: Feb 2003
Posts: 102
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Re: Technical Oil Filter Test (Touringpro)
i have fought an uphill battle ever since i said, we, at my work, don't like and won't use any mobil 1 products. That forum has all the information i've heard over the last 4-5 years about mobil 1 not being a true synthetic due to the laws governing oil manufacturing.
Le Mans Master
Joined: Mar 1999
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From: delmont pa
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Re: Technical Oil Filter Test (vettenuts)
every race engine i ever built has had the filter bypass blocked and even my street engines with no problems.
:chevy
Not sure I agree on blocking the by-pass. I think this test shows that your engine may starve for oil if you do so. It should be interesting when they get the heaters working and then do tests with the oil at temperature.
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Safety Car
Joined: Oct 2001
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From: Insert Wittty Comment here
Re: Technical Oil Filter Test (clem zahrobsky)
Alot of folks block the bypass on race engines to filter everything. One thing to remember is that the oil has to be up to temperature before you do anything. If you jack up the rpms with the oil cold it will destroy the filter from the pressure going too high... The bypass is a safety valve for a reason.
Also, fram filters are garbage...
Also, fram filters are garbage...
Burning Brakes
Joined: Feb 2003
Posts: 1,016
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From: Bristol Ct
Re: Technical Oil Filter Test (J-Rod)
I read the reveiw and the first thing that came to mind was that they didn't really test for the filters abilitity to filter. My first thought was that maybe the filters that flowed the best didn't filter the best? I'm I making myself understood? :confused: :confused: :confused: :confused:
Le Mans Master
Joined: Mar 1999
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From: delmont pa
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Re: Technical Oil Filter Test (J-Rod)
all good oil filter will withstand the oil pressure that any street engine puts out cold by a factor of 5 or more. the VW diesel rabbit had a 125 PSI cold oil pressure and no stock engine i know of has that kind of pressure. that is why 5W-30 is the best bet for street engine because it flows thru the filter easier and does not blow open the filter bypass as much. the reason a rear main on chevy engines get chewed up is because the dirty oil from the filter bypass goes there first. :chevy
Thread Starter
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
Re: Technical Oil Filter Test (RobsC5)
RobsC5: I am currently running the AC UPF-44. However, I also just found out that when they stopped manufacturing them and then re-started they changed vendors and Champion is not making them. Don't know if that changes anything. Also, they just did the air test on the UPF-44 on the same web site.
Highroller: Agree with the filtering ability comment. That is coming soon on this same web site. May take some time to get through all the tests, but the results in the end should hopefully put to bed the heresay and inuendo about which filter to use. I am hoping we can gleen some good information from this testing that is being done. Stay tuned :yesnod:
Highroller: Agree with the filtering ability comment. That is coming soon on this same web site. May take some time to get through all the tests, but the results in the end should hopefully put to bed the heresay and inuendo about which filter to use. I am hoping we can gleen some good information from this testing that is being done. Stay tuned :yesnod:
Burning Brakes
Joined: Feb 2003
Posts: 1,016
Likes: 0
From: Bristol Ct
Re: Technical Oil Filter Test (vettenuts)
RobsC5: I am currently running the AC UPF-44. However, I also just found out that when they stopped manufacturing them and then re-started they changed vendors and Champion is not making them. Don't know if that changes anything. Also, they just did the air test on the UPF-44 on the same web site.
Highroller: Agree with the filtering ability comment. That is coming soon on this same web site. May take some time to get through all the tests, but the results in the end should hopefully put to bed the heresay and inuendo about which filter to use. I am hoping we can gleen some good information from this testing that is being done. Stay tuned :yesnod:
Highroller: Agree with the filtering ability comment. That is coming soon on this same web site. May take some time to get through all the tests, but the results in the end should hopefully put to bed the heresay and inuendo about which filter to use. I am hoping we can gleen some good information from this testing that is being done. Stay tuned :yesnod:
Racer
Joined: Feb 2001
Posts: 330
Likes: 0
From: Baja Oregon
Re: Technical Oil Filter Test (14car)
i have fought an uphill battle ever since i said, we, at my work, don't like and won't use any mobil 1 products. That forum has all the information i've heard over the last 4-5 years about mobil 1 not being a true synthetic due to the laws governing oil manufacturing.
Thread Starter
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Re: Technical Oil Filter Test (Touringpro)
Mobil-1 is a PAO and not a hydrocracked Group III oil like Castrol Syntec. There newest version (Super Syn) also has moly and is producing much better oil analysis reports then it's predecessor Try-Syn. I just don't like their viscosity numbers, very low in the 30 weight range at temperature. Almost into the 20 weight range.
Drifting
Joined: Mar 2000
Posts: 1,956
Likes: 135
From: Maryland
Re: Technical Oil Filter Test (clem zahrobsky)
Hey, I had a Rabbit Diesel but never check the oil pressure. HATED that car. But then again I LOVED my '79 Olds Delta 88 Custom Cruise Diesel and most people hated them. It ran forever w/no maintenance, lots of torque, great mpg, and always started no matter how cold it got.
But, back to oil pressure. My Rx7 had a cold idle oil pressure of 130-135. No it wasn't stock.
But, back to oil pressure. My Rx7 had a cold idle oil pressure of 130-135. No it wasn't stock.
all good oil filter will withstand the oil pressure that any street engine puts out cold by a factor of 5 or more. the VW diesel rabbit had a 125 PSI cold oil pressure and no stock engine
Intermediate
Joined: Feb 2003
Posts: 28
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From: Carmichael CA
Re: Technical Oil Filter Test (vettenuts)
Lots of good comments so far and I agree with most of them. I think flow rate is just one factor. Good filtration coupled with good flow rate should be the goal here. I'm guessing the Fram keeps a good flow rate because there isn't as much filtration. K&N has proven with its air filters that it can filter better and, with its improved filter media, improve air flow. I would guess the same would be true with its oil filter media. Looking at the results, I'd feel very comfortable using the K&N. The M1 may be using a more resistant media to filter or maybe it does filter better. I'd like to see a test with dirty oil and see which filter removes what and still maintains a good flow rate.
I think I'll stick with K&N until someone can recommend something they believe works as good or better.
I think I'll stick with K&N until someone can recommend something they believe works as good or better.
