Replies to This Discussion

Permalink Reply by David R Ferrell on July 26, 2020 at 10:18am

I have the original rubber lines rated for fuel in injection pressures in my 650B with a UL 350iS and I run 93 octane auto.  It's been 7 years and I check them every year at annual for any signs of deterioration and no problems as yet. I also look before every flight for any signs of debris in the fuel drain check and have seen none.

I have changed every other line on the plane out for teflon braided lines with no life expectancy limitations. If I were building again I'd go with those type of lines for all lines including the lines from the tanks. It's on my to do list to replace those lines but it's a big job and have not done it as yet..

• ▶ Reply

Permalink Reply by David Olson on August 1, 2020 at 5:39pm

Thanks.  I assume that is 93 ethanol you use. 

• ▶ Reply

Permalink Reply by David R Ferrell on August 14, 2020 at 11:16am

Correct. I get it from Costco and test it regularly but find very little ethanol in it. I'm using the easy test with a water bottle and sharpie so not scientific! But in 7 years I have found no issues with their fuel. The engine runs better on 93 octane auto fuel in my experience. 

• ▶ Reply