X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-d22.mx.aol.com ([205.188.144.208] verified) by logan.com (CommuniGate Pro SMTP 5.0c2) with ESMTP id 719981 for flyrotary@lancaironline.net; Tue, 13 Sep 2005 00:37:39 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.144.208; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-d22.mx.aol.com (mail_out_v38_r5.3.) id q.15a.58bece00 (3657) for ; Tue, 13 Sep 2005 00:36:48 -0400 (EDT) From: WRJJRS@aol.com Message-ID: <15a.58bece00.3057b160@aol.com> Date: Tue, 13 Sep 2005 00:36:48 EDT Subject: Re: [FlyRotary] New Subject... Vapor pressure changes with premix oil To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1126586208" X-Mailer: 9.0 SE for Windows sub 5017 X-Spam-Flag: NO -------------------------------1126586208 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 9/12/2005 4:18:48 PM Pacific Standard Time, bhughes@qnsi.net writes: Anyone have any data as to what affect mixing two stroke oil with auto fuel does to vapor pressure? Will it make auto fuel more tolerant at higher altitudes or less? Bobby Since the oil is harder to vaporize it should reduce the tendance to vapor lock. I always get crossed up on vapor pressure, higher is harder to vaporize? I sure you get the idea. Bill Jepson PS the oil can reduce the octane level if mixed in high enough quantity although at the 100:1 needed for the rotary I doubt if you would even notice it's there. Bill -------------------------------1126586208 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 9/12/2005 4:18:48 PM Pacific Standard Time,=20 bhughes@qnsi.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
Anyone h= ave any=20 data as to what affect mixing two stroke oil with auto fuel does to vapor=20 pressure? Will it make auto fuel more tolerant at higher altitudes or= =20 less?
 
Bobby
Since the oil is harder to vaporize it should reduce the tendance to va= por=20 lock. I always get crossed up on vapor pressure, higher is harder to vaporiz= e? I=20 sure you get the idea.
Bill Jepson
PS the oil can reduce the octane level if mixed in high enough quantity= =20 although at the 100:1 needed for the rotary I doubt if you would even notice= =20 it's there. Bill
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