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Best Oil Filter for the 912

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Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Thu Dec 28, 2006 8:54 pm Post subject: Best Oil Filter for the 912

Hi All,



I just spent the last month on oil filter research for the 912s.



Here are the top picks based on fact and safety valve bypass pressures.

If you want all the whys and how comes please call me at 520-574-1080 in Tucson, Az.

Yes, there is a difference. 

I just spent 1.5 hrs. typing on another forum and lost the whole thing so I'm not up for retyping the whole thing.

This is the Readers Digest version.



1.  Purolator  best    

     Pure One  PL10241  

     synthetic medium and 3.3" long



2. This is a tie

     Mobile-1  M1-102   synthetic medium and more than the Mahle

     Mahle OC 11, this is the Rotax 825-701  It is a good filter  2.44" long



3. Sorry John H., but this filter really does fall behind these others as far   

    as quality and filtering effiency. I used it too, until I did the research

    and now it is most definitly Pure One.

    Fram Tough Guard TG3614 

    Standard paper type medium,  3.3" long



All bypass pressures are similar. They all start at 12 psi and the Mahle OC 11 starts at 13 psi

No, 1psi does not make a difference.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Thu Dec 28, 2006 9:04 pm Post subject: Best Oil Filter for the 912

What's wrong with the Rotax filter?



Would like to read your research and discussion paper on oil filters 

for the 912S.



john h

mkIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

jindoguy(at)gmail.com
Guest

Posted: Thu Dec 28, 2006 10:24 pm Post subject: Best Oil Filter for the 912

Roger, good to know, there are equivalents out there. According to K & N their HP-1002 is a replacement for the L-10241. If for no other reason that it's all ready for safety wire, I'd like to know how they compare.  

I'd be interested to know your research sources. Have you seen this study?



http://minimopar.knizefamily.net/oilfilterstudy.html



Rick 



On 12/28/06, Roger Lee <ssadiver1(at)yahoo.com  (ssadiver1(at)yahoo.com)> wrote:[quote] --> Kolb-List message posted by: "Roger Lee" <ssadiver1(at)yahoo.com (ssadiver1(at)yahoo.com)>



Hi All,



 I just spent the last month on oil filter research for the 912s.



 Here are the top picks based on fact and safety valve bypass pressures.

If you want all the whys and how comes please call me at 520-574-1080 in Tucson, Az.

Yes, there is a difference.

I just spent 1.5 hrs. typing on another forum and lost the whole thing so I'm not up for retyping the whole thing. 

This is the Readers Digest version.



1.  Purolator  best

     Pure One  PL10241

     synthetic medium and 3.3" long



2. This is a tie

     Mobile-1  M1-102   synthetic medium and more than the Mahle 

     Mahle OC 11, this is the Rotax 825-701  It is a good filter  2.44" long



3. Sorry John H., but this filter really does fall behind these others as far

    as quality and filtering effiency. I used it too, until I did the research 

    and now it is most definitly Pure One.

    Fram Tough Guard TG3614

    Standard paper type medium,  3.3" long



All bypass pressures are similar. They all start at 12 psi and the Mahle OC 11 starts at 13 psi 

No, 1psi does not make a difference.



--------

Roger Lee

Tucson, Az.





Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=84139#84139 http://www.matronics.com/Navigator?Kolb-List  

when you live at the airport.   [quote][b]

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Fri Dec 29, 2006 11:54 am Post subject: Re: Best Oil Filter for the 912

Hi John,



There is nothing wrong with the Rotax filter #825-701 which is a Mahle 

OC 11. It is a good filter and used on Ducatti motorcycles. I only offered up options based on good research. I know you have used the TG3614 for years and so have I, but new info has made me change. The Pure One is the same physical size as the Fram TG 3614 and it is a better filter in construction and filter medium. There is also a difference in the plain old Fram filter and the Tough Guard. The Tough Guard is better. 

That being said the Pure One PL10241 has far more filter medium and has a very good synthetic medium.



The top three filters on that list are really good filters and you couldn't go wrong using any of them. These are just options. The TG3614 is just a average filter, but still ok since we change oil so often.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Fri Dec 29, 2006 1:16 pm Post subject: Best Oil Filter for the 912

Roger L:



Was hoping you would give us some numbers/data/tests so we could see 

what the differences are in the filters that were examined and tested.



Bypass valve release pressure is very important if one is operating in 

cold climates.  When the engine and oil is cold, is when the oil 

pressure can overpower the bypass valve and dump dirty oil and crud 

back into the system.



I have looked at several comparisons, two different sites, but not 

come to any conclusive evidence.  Most of it is preference on the 

examiners/comparers part.



john h

mkIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Fri Dec 29, 2006 4:57 pm Post subject: Re: Best Oil Filter for the 912

Hi John,



The "safety valve bypass pressure" is important, but all the filters listed are at 12 psi or 13 psi. The Pure One, Fram Tough Guard and the Mobile 1 start at 12 psi and they are full open at 15 psi. The Mahle starts at 13 psi and is full open at 15.9 psi. Talking to the engineers and reading the articles 1 psi made no real difference. The springs are not that exact and can differ slightly even between filters with the same number. The cold morning problem should not be an issue for most people that use the proper viscosity (usually multi viscosity is better) and a good grade oil as in the semi and full synthetics. Poreability is down into the low -30 to -50 F and if it's that cold I want to watch a guy go fly and open or semi open Kolb. Most of the really cold climate guys use some type of an engine or oil heater anyway. If your filter is that clogged then you have a more serious problem to worry about or have done something seriously wrong.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Fri Dec 29, 2006 8:51 pm Post subject: Re: Best Oil Filter for the 912

Where do you get the purolater filter ?

_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Sat Dec 30, 2006 8:54 am Post subject: Best Oil Filter for the 912

Jet Pilot,



According to Purolator's website, Advance Auto Parts, Sears, PepBoys 

among others carry Purolator Filters.



Thom in Buffalo

do not archive

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Sat Dec 30, 2006 1:27 pm Post subject: Re: Best Oil Filter for the 912

Hi Roger



Talking about Fram filters, I always use them in my car as they sell some High end filters also.   Did you consider or get information on the Higher End fram filters like the Extended Guard ?



Im wondering how the more expensive Fram Extended Guard with the metal mesh, etc. etc. would compare against the Tough Gaurd and the Purolater ?



JettPilot

_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Sat Dec 30, 2006 5:21 pm Post subject: Re: Best Oil Filter for the 912

Hi Jetpilot,



Believe it or not the Fram Tough Guard was rated higher than the Extra Guard. If I remember right the Extra Guard has TFE which was what people used to put in stuff like Slick 50 (just teflon). Most people agree now that you should not use that in your engines and no real evidence supports any benifits. 

Some people will quote a filter as being able to filter, let's say 10 microns. This does not really mean a whole lot unless you quantify it with an effiency rating, i.e. 10 microns at 80%, then larger particles get through the other 20%. Different filters have different effiency ratings. The Tough Guard has a metal mesh screen filtration if the safety bypass were to open.

 The Tough Guard and the others are good average filters, but the Pure One is better. Better medium and effientcy rating.



Hope this helps.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Thu Jan 25, 2007 7:13 pm Post subject: Re: Best Oil Filter for the 912

I have been researching Rogers post about oil filters and found the exact same results that Robert did.   Motorcycle people are an excellent source for high performance engine information, and they gave the Purolator Pure One filter the best ratings in filtering out the smallest particles, the amount of filter media used, and construction.   Some off road sites also came to the same conclusion Roberd did,  Pure One beign the best, Mobil 1 being second, and down from there....  Check out the following websites.



http://www.calsci.com/motorcycleinfo/FilterStudy.html

http://minimopar.knizefamily.net/oilfilterstudy.html

http://www.calsci.com/motorcycleinfo/Filters.html#OilFilters

http://minimopar.knizefamily.net/oilfilters.html



I was hesitant to try a different oil filter in my brand new 912-s, and I could care less if the filter cost 5 dollars or 15 dollars, I just want to put on the best filter avialable.   I called some Rotax mechanics and asked them about it, and they gave me the same line they gave Robert, " Use Rotax because of the higher bypass pressure "...    Well the Rotax Bypass pressure is 13 PSI and the Purolator bypass pressure is 12 PSI, 1 PSI just will not make any difference...   



Here is the Kicker,  the mechanic said "you dont want to be in bypass"...   The Purolator filter has a lot more media than the Rotax Filter, so even though it is 1 PSI difference, the oil flow through a lot of media in the Purolator is much better than through less media in the Rotax filter.   So in the end, I am less likely to see bypass at cold oil temperatures or due to clogging in the Purolator filter.  One thing some websites said is that the purolator has so much filter media, that they from looking at it they think it could impede flow as the pleats are close together, although there have never been any reported problems.  If I were very worried about this, and wanted to be conservative and error on the safe side, I would use the Mobil 1 filter...



For those of you that use Fram filters in your engines ( I have used Fram in my cars for years ) you REALLY need to see the bottom of the page in the last link of the websites !!!   Fram always rates in the lowest of the sites I have found, but this is scarey !!!  



The easy thing for me to do would be to just buy the Rotax filter, but I want the best filter I can get.   Falsely feeling good about a Rotax Filter just because they relabeled it and Rotax tells us all to use it does not make it the best filter.  Look how long it took manufaturers to discover the advantages of synthetic oil and finally give us their "blessing" to use it.  I have run out of reasons not to stick a Purolator filter on my 912-s after my first oil change.   Any input from those that have been flying 912's for a long time would be greatly appreciated.



Michael A. Bigelow

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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Thu Jan 25, 2007 7:53 pm Post subject: Best Oil Filter for the 912

| I have been researching Rogers post about oil filters and found the 

exact same results that Robert did.

|

| Michael A. Bigelow

Hi Mike:



IIRC I have already given you my opinion and the product I use on this 

issue.



I read all these "less than scientic" "unprofessional" reports that 

you posted some time ago, well before Roger Lee posted reference 912 

oil filters.  I just now scanned through them very quickly.  Did not 

see any info on first pass or one pass percentage of filtration.  The 

filter I use is 98%.  I have been flying more than 2,000 hours with 

the Fram filters.  The one I use now is the Fram TG3614.  If I want to 

double the amount of filter area I can run a Fram TG3600.  However, 

the Rotax Factory seems to think the size of their filter is more than 

sufficient to do the job, so I will stick to a filter of that size, or 

the TG3614.   These filters are readily available and are inexpensive, 

about 5.00 at Wal-Mart.  Since I am not independently wealthy, I will 

probably keep on using Fram.  BTW I have had no filter, lubrication, 

or any problems with my two 912 engines because of a Fram oil filter.



I might add, I drive a 1992 Dodge/Cummins diesel pickup with well over 

317,000 miles, all those miles the engine was lubricated with Shell 

RotellaT and Fram filters.



Most of the oil filters today are produced by a few, very 

manufacturers.  I am sure we would be hearing thousands of horror 

stories if the filters being sold on the market are defective, 

inferior, and not getting the job done.



Not trying to sell myself or anyone else on using Rotax, Purolator, 

Fram, or any other brand of oil filter.  I haven't seen or experienced 

anything to make me change my mind about the way I maintain my Rotax 

912ULS.



john h

mkIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

biglar

Joined: 14 Jan 2006
Posts: 457

Posted: Fri Jan 26, 2007 3:42 pm Post subject: Best Oil Filter for the 912

That's all well and good, but you might want to listen to what Dodge has to 

say about using Fram filters on the Cummins diesel.  Why take a chance ?? 

Lar.



Larry Bourne

Santa Fe, NM

www.gogittum.com



---

_________________
Larry Bourne
Palm Springs, CA
Building Kolb Mk IIIC
"Vamoose"

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