---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Tue 05/07/19: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:47 AM - Fuel - Mogas (Kelly McMullen) 2. 07:02 AM - Re: Fuel - Mogas (Rob Kermanj) ________________________________ Message 1 _____________________________________ Time: 06:47:22 AM PST US From: Kelly McMullen Subject: RV10-List: Fuel - Mogas I believe nearly every parallel valve -540 engine was certified on 91/96 octane avgas. Of course, that fuel had mostly disappeared when I got my license in 1974. However, most engines in type certificated airframes with engines that were certified on that fuel were capable of obtaining a 91 octane mogas STC, excepting those where airframe issues precluded its use. My question is whether any -10 users have contemplated use of mogas. Yesterday I was at Bountiful Skypark in Salt Lake area, preparing for takeoff when another -10 departed. It is one airport I am aware of that offers 91 octane, ethanol free, mogas...partly to support their fleet of Rotax powered LSA trainers. Rotax not only approves its use, but extends oil change intervals to double what is prescribed when using 100LL. My main concern is less any effect on the engine, and more whether mogas has any impact on the Pro-Seal used in the tanks. So, just looking for whether there is any experience out there. Obviously not considering anything less than 91 octane and not anything with ethanol. Kelly ________________________________ Message 2 _____________________________________ Time: 07:02:02 AM PST US From: Rob Kermanj Subject: Re: RV10-List: Fuel - Mogas Research Turbo Eddie on vansairforce blog. He has had thousands of hours with togas. Perhaps 4000 hrs plus. > On May 7, 2019, at 7:45 AM, Kelly McMullen wrote: > > I believe nearly every parallel valve -540 engine was certified on 91/96 octane avgas. Of course, that fuel had mostly disappeared when I got my license in 1974. > However, most engines in type certificated airframes with engines that were certified on that fuel were capable of obtaining a 91 octane mogas STC, excepting those where airframe issues precluded its use. > My question is whether any -10 users have contemplated use of mogas. Yesterday I was at Bountiful Skypark in Salt Lake area, preparing for takeoff when another -10 departed. It is one airport I am aware of that offers 91 octane, ethanol free, mogas...partly to support their fleet of Rotax powered LSA trainers. Rotax not only approves its use, but extends oil change intervals to double what is prescribed when using 100LL. My main concern is less any effect on the engine, and more whether mogas has any impact on the Pro-Seal used in the tanks. > So, just looking for whether there is any experience out there. Obviously not considering anything less than 91 octane and not anything with ethanol. > Kelly > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv10-list Browse Digests http://www.matronics.com/digest/rv10-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.