X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 05 May 2014 07:16:15 -0400 Message-ID: X-Original-Return-Path: Received: from nm22-vm3.bullet.mail.gq1.yahoo.com ([98.136.217.66] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6858032 for lml@lancaironline.net; Sun, 04 May 2014 06:46:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=98.136.217.66; envelope-from=casey.gary@yahoo.com Received: from [98.137.12.59] by nm22.bullet.mail.gq1.yahoo.com with NNFMP; 04 May 2014 10:45:23 -0000 Received: from [98.137.12.251] by tm4.bullet.mail.gq1.yahoo.com with NNFMP; 04 May 2014 10:45:23 -0000 Received: from [127.0.0.1] by omp1059.mail.gq1.yahoo.com with NNFMP; 04 May 2014 10:45:23 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 601545.13574.bm@omp1059.mail.gq1.yahoo.com Received: (qmail 29840 invoked by uid 60001); 4 May 2014 10:45:23 -0000 X-YMail-OSG: Gu_bGgkVM1mrYR2T4orp8U9wZiS8WnEan0QY5Br09wtMPFc 98_SkeLCAKjSahVHenBkS9wQ0xoHCvWtPhzQpS2eSSJb6X5xqMtel37tc0Po VvgkGyasBJOzJtt5VXnJuKrZ7LlNPeJY6ZpXSk9t9ttdSczmNQ7e6d7zE1Rp C2.yXlBOX2CR8Nrtl45s.DWW3CyvFboHS8bD08yS8WjPFdcBiTyN4FTUqfMY daBTUVLJsdwygN.maKfzq.mUdTwhrd.WBZJf794nR.3dPRQXgRyEywABw7Nh yPKyOMOTcyYe8zaXq6N7mt6IUJHOu_PJx8RO5uMPoUcdK3SYw4Qo6OL4GBRA B465YqV6PXt1Jiv50xZQEFtMzq.I7KmOO.2m7CkI9y_FC4E6yDaA8DRrPB90 dW9rSnTum8ONH48E5i4iUaGZvDq0XmJioVxtE2K_So.Nr3sXCGEr_lSVRnVw SuovT9kIc7v.HyvAsjnr_eQxgODlFZvTKJw82FiFWmsJgjvzvVIwBeuC7b2Q 5LUTBYuwesAAJvfsdVSjKAp3T23qBZZb1c0oOj2PB3NQtRNqiFsjf.XWrv_d ngqyNxO1H2H4Qk9NMCStDzW9L.V_SRC5DwHiEr1M.rPPrcmVCk9xY9y7DH0i Ylk7nzoQnqG2cEETSKUDlLKPf88ZGQkQ4ASGKDVhxtEIQD1KvvVKQ67B9.j5 Q3vqU3f6978WjU8L6HYE0d7ODBDXqY7dZo03_RhtDN6U55BBr7A-- Received: from [24.247.14.116] by web163506.mail.gq1.yahoo.com via HTTP; Sun, 04 May 2014 03:45:23 PDT X-Rocket-MIMEInfo: 002.001,SSB3YXMgdG9sZCBvbmNlIChhIGxvbmcgdGltZSBhZ28pIHRoYXQgdGhlIG1haW4gZGlmZmVyZW5jZSBiZXR3ZWVuIGF1dG9tb3RpdmUgYW5kIGFpcmNyYWZ0IGZpbHRlcnMgaXMgdGhhdCB0aGUgYWlyY3JhZnQgZmlsdGVycyBhcmUgYnVpbHQgZm9yIGEgbXVjaCBoaWdoZXIgbWF4aW11bSBwcmVzc3VyZS4gwqBGZWVsIHRoZSB3ZWlnaHQgLSB5b3UgY2FuIHRlbGwgdGhlIG1ldGFsIGlzIHRoaWNrZXIuIMKgQXQgc29tZSBwcmVzc3VyZSBhbnkgb2lsIGZpbHRlciB3aWxsIGRpc3RvcnQgZW5vdWdoIHRvIGxpZnQBMAEBAQE- X-Mailer: YahooMailWebService/0.8.188.663 References: X-Original-Message-ID: <1399200323.80449.YahooMailNeo@web163506.mail.gq1.yahoo.com> X-Original-Date: Sun, 4 May 2014 03:45:23 -0700 (PDT) From: Gary Casey Reply-To: Gary Casey Subject: Re: Oil filter X-Original-To: Lancair Mailing List In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-895122751-147945160-1399200323=:80449" ---895122751-147945160-1399200323=:80449 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable I was told once (a long time ago) that the main difference between automoti= ve and aircraft filters is that the aircraft filters are built for a much h= igher maximum pressure. =A0Feel the weight - you can tell the metal is thic= ker. =A0At some pressure any oil filter will distort enough to lift the sea= l off the surface and blow oil out. =A0The problem occurs on a cold-oil tak= eoff - max rpm with cold oil. =A0I doubt very much if an automotive oil fil= ter will exceed its pressure rating (which is something around 500 psi), bu= t that's what I was told once upon a time. =A0Another difference is that ce= rtified aircraft oil filters have to have a means for positively retaining = the filter - a safety wire tab. =A0However, I have never seen or heard of a= n oil filter coming loose after having been tightened reasonably. =A0The fi= nal difference is that aircraft filters have to have a means of measuring i= nstallation torque. =A0But other than that, I suspect automotive filters ar= e at least as good as the aircraft version. =A0You pays your money and takes= your choice, I guess.=0AGary Casey=0A=0AHi Jim -=0A=0AI've meant to answer= this for a while, but kept putting it off. I've used a=A0=0AMobil M1-107 a= utomotive oil filter on my Lycoming IO-320 for over ten years.=A0=0AThem M1= -107's gasket fits the standard Lycoming spin-on perfectly. It's a=A0=0Apre= mium automotive filter and, although I don't have emperical evidence, I'm= =A0=0Acertain it's superior to antiquated 'aviation' oil filter technology.= It's=A0=0Aalso considerably smaller than the Champion, which might solve y= our=A0=0Ainterference problem.=0AHere are Mobil's claims from their website= ...=A0=0Ahttp://www.mobiloil.com/USA-English/MotorOil/Other_Products/Mobil_= 1_Extended_Performance_Oil_Filters.aspx=0A=0A1) Remove more contaminants th= an conventional filters using an advanced=A0=0Asynthetic fiber blend filter= media=0A2) Holds and remove three times the dirt versus the leading econom= y filter=A0=0Abrand=0A3) Reduces resistance to oil flow while improving fil= ter efficiency=0A4) Withstands up to nine times the normal system operating= pressure=0A=0ABill Rumburg=0AN403WR (Sonic bOOm) ---895122751-147945160-1399200323=:80449 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
I was told once (a long time ago) that the main difference between automo= tive and aircraft filters is that the aircraft filters are built for a much= higher maximum pressure.  Feel the weight - you can tell the metal is= thicker.  At some pressure any oil filter will distort enough to lift= the seal off the surface and blow oil out.  The problem occurs on a c= old-oil takeoff - max rpm with cold oil.  I doubt very much if an auto= motive oil filter will exceed its pressure rating (which is something aroun= d 500 psi), but that's what I was told once upon a time.  Another diff= erence is that certified aircraft oil filters have to have a means for posi= tively retaining the filter - a safety wire tab.  However, I have neve= r seen or heard of an oil filter coming loose after having been tightened re= asonably.  The final difference is that aircraft filters have to have = a means of measuring installation torque.  But other than that, I susp= ect automotive filters are at least as good as the aircraft version.  = You pays your money and takes your choice, I guess.
Gary Casey

Hi Jim -

I've meant to= answer this for a while, but kept putting it off. I've used a =
Mobil M1-107 autom= otive oil filter on my Lycoming IO-320 for over ten years. 
Them M1-107's gasket f= its the standard Lycoming spin-on perfectly. It's a 
premium automotive filter a= nd, although I don't have emperical evidence, I'm 
certain it's superior to antiqu= ated 'aviation' oil filter technology. It's 
also considerably smaller than the Champion, which might solve = your 
i= nterference problem.
Here are Mobil's claims from their website... 
http://www.mobiloil.com/USA-English/MotorOil/Other_Products/Mob= il_1_Extended_Performance_Oil_Filters.aspx

1) Remove more contaminants than conventional filters usi= ng an advanced 
synthetic fiber blend filter media
2) Holds and remove three times the dirt ve= rsus the leading economy filter 
brand
3) Reduces re= sistance to oil flow while improving filter efficiency
4) Withstands up to nine times t= he normal system operating pressure

Bill Rumburg
N403WR (Sonic bOOm)
=

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