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50% 100ll 50% Av Gas

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rwwende

Joined: 12 Mar 2010
Posts: 23

Posted: Wed Jul 30, 2014 11:42 am Post subject: 50% 100ll 50% Av Gas

Anybody running a 50/50 mix with the IO540?

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Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Wed Jul 30, 2014 12:35 pm Post subject: 50% 100ll 50% Av Gas

I don't think you asked what you meant. 100LL=Avgas. Perhaps you meant 

Mogas?

Certainly should be doable with 91 Octane mogas or better IF you have 

stock 8.5:1 pistons. Any higher compression ratio pretty much demands 

100 octane.

Then there is the issue of finding mogas without ethanol. In most of the 

country today that is very difficult because of requirements for air 

pollution and renewable fuels mandates. Ethanol creates its own problems 

and you would have to plan ahead to have fuel system built to withstand 

the ethanol and to deliver enough higher fuel flow to counter the leaner 

mixture the ethanol will cause.

On 7/30/2014 12:42 PM, rwwende wrote:

 	  Quote: 	
		   



 Anybody running a 50/50 mix with the IO540?





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=427574#427574

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

flysrv10(at)gmail.com
Guest

Posted: Wed Jul 30, 2014 12:52 pm Post subject: 50% 100ll 50% Av Gas

I know someone in Florida (famous guy around here).  Run 50/50 in his Rv6 for years and finally sold the engine after 3000 hrs without any overhaul and bought another new engine.  



He flew the plane almost daily so that might be the reason for the longevity. 



I think he took off on avgas and cruised on unleaded. If you need better details, I will have to chase him down as he is a Snowbird living in Florida during the winter month.   



Can't promise quick turnaround. 



Do not archive. 



 	  Quote: 	
		   On Jul 30, 2014, at 3:42 PM, "rwwende" <n7006w(at)gmail.com> wrote:

 

 

 

 Anybody running a 50/50 mix with the IO540?

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=427574#427574

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