Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 19 Aug 2003 11:05:08 -0400 Message-ID: X-Original-Return-Path: Received: from web41004.mail.yahoo.com ([66.218.93.3] verified) by logan.com (CommuniGate Pro SMTP 4.1.1) with SMTP id 2533018 for lml@lancaironline.net; Tue, 19 Aug 2003 10:19:29 -0400 X-Original-Message-ID: <20030819141924.56935.qmail@web41004.mail.yahoo.com> Received: from [165.247.225.154] by web41004.mail.yahoo.com via HTTP; Tue, 19 Aug 2003 07:19:24 PDT X-Original-Date: Tue, 19 Aug 2003 07:19:24 -0700 (PDT) From: Jim Thomas Subject: Autogas in Airplanes X-Original-To: New Mail List Lancair MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii I was told by a Lycoming rep many years ago that if I was going to run auto gas in my O-320 powered Super Cub, I should blend it 3 parts auto gas to 1 part 100LL. The reason is that 100LL contains 4 times more lead than 80/87. By blending down the 100LL with 3 parts auto gas you end up with an equivalent amount of lead as 80/87 which reduces the chance of lead fowling of your plugs but keeps some lead to lubricate the valves. I've done this on and off for years and have had no observable problems. The rep also told me that those operating P&W R-985s (Beavers) should blend just the reverse; 3 parts 100LL to 1 part auto gas. I think he told me the radials need more lead for lubricating the valves. Yes, the smell of auto gas is terrible. I no longer use auto gas since I purchased a hangar and keep my plane inside. Walking into my hangar filled with auto gas smell would nearly make me want to turn around and walk back out. Jim Thomas L2K #166 __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com