O-320 (160 HP), 8.50:1 Pistons - Mogas no prob since 500+ hrs
Tharpo,
the RV-4 I have has the O-320 (160 HP) with 8.50:1 Pistons and me and the previous owner are running Mogas with no prob since 500+ hrs. In Germany we still have Ethanol free Mogas with an European ROZ of 98 which is ca. 94 after US specs as far as I know.
However as I am going to the UK where is no Mogas available I top up the tanks up with ca. 20 - 25 US gals Avgas every couple of weeks but I don´t think that matters really. As well I agressively lean while being on the ground and I don´t get any lead fouling on the sparks, too.
Just my 2 cents - you milage may/will vary, Heinz
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Homebased Muenster-Telgte, Germany, Europe
a.) Eggenfellner H-6 powered 4-seat Robin, PH-ERD 325+hrs since SEP 2008 .... counting
b.) bought flying & sold: Vans RV-4 with O-320, PH-EIL .... very sad ending - lost a friend
c.) bought flying at 51 TT: Vans RV-3A, PH-URZ .... now at 150 hrs (and having fun  )
Last edited by Jumbo : 11-15-2011 at 12:30 AM.
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