X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmfepo102.cox.net ([68.230.241.144] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTP id 4902055 for flyrotary@lancaironline.net; Thu, 10 Mar 2011 11:12:26 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.144; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmfepo102.cox.net (InterMail vM.8.01.04.00 201-2260-137-20101110) with ESMTP id <20110310161151.IHIX18463.fed1rmfepo102.cox.net@fed1rmimpo01.cox.net> for ; Thu, 10 Mar 2011 11:11:51 -0500 Received: from BigAl ([72.199.216.14]) by fed1rmimpo01.cox.net with bizsmtp id HUBq1g00h0KDB3c03UBqor; Thu, 10 Mar 2011 11:11:50 -0500 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=WtRarTlxVJ38pOpEoV/iO0An5zAk6Rp4dU44mOq+3B0= c=1 sm=1 a=TPvrVRyicAsl4VeEYn0L5g==:17 a=daa7jAkejdZacHJAkwgA:9 a=NRj-78F_es-ImTInE4YTmAuu_ysA:4 a=wPNLvfGTeEIA:10 a=yMhMjlubAAAA:8 a=OJSF7mDwTF8GTbkYQzwA:9 a=Mt5G0FY_E6zDqHDwLk8A:7 a=GP5GWvOWlvkkhyLkmsJiAHUzIq0A:4 a=TPvrVRyicAsl4VeEYn0L5g==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: 2-stroke oil mix ratio Date: Thu, 10 Mar 2011 08:11:34 -0800 Message-ID: <1154C522C3724E6891E392CE389A0AB4@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01CBDEFA.C541DF90" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6863 Importance: Normal Thread-Index: AcvfOCRHtKWINdj4SMWoI9kpopm+OwAA7PkQ X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_001C_01CBDEFA.C541DF90 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable And Mark, my math (75 G * 4 qts / 2 qts) says you are mixing at 150:1 = =85 seems a bit light. Perhaps I=92m mixing too strong 22 L / .2 L =3D 110:1, one Gerry can at = t time. =20 Jeff; I expect it varies with installation and typical operating conditions, = but I find with my NA 20B anything over =BE oz/gallon (170:1) results in = increase oil level in the pan; and dilution of the expensive Mobile 1. I use the Super-Tech (TCW3) 2-stroke oil. I would think the TCW3 spec is more consistent with our operating conditions than oils speced for high performance air-cooled 2-cycle engines; but I=92d be interested if = someone has better info on the subject. =20 Al =20 ------=_NextPart_000_001C_01CBDEFA.C541DF90 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

And Mark, my math (75 G * 4 qts / 2 qts) says = you are mixing at 150:1 … seems a bit light.

Perhaps I’m mixing too strong 22 L / .2 = L =3D 110:1, one Gerry can at t time.

Jeff;

I expect it varies with = installation and typical operating conditions, but I find with my NA 20B anything over = =BE oz/gallon (170:1) results in increase oil level in the pan; and dilution of the = expensive Mobile 1. I use the Super-Tech (TCW3) = 2-stroke oil. I would think the TCW3 spec is more consistent with our operating conditions than oils speced for high performance air-cooled 2-cycle = engines; but I’d be interested if someone has better info on the = subject.

Al=A0

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