Nasty stuff. I guess they have to do something to boost the octane of the refinery tailings we seem to get here for mogas.
Mike > On 5 Feb 2015, at 4:40 pm, dennis hipperson <[email protected]> wrote: > > I believe the smell could be Toluene, used as an octane booster. (Maybe) > > Dennis > > >> On 5/02/2015 2:29 pm, Ian Mc Phee wrote: >> I must admit I used epoxy resin Ciba/G 3600 and not vinyl ester. I am >> going to try again using vinyl ester. >> >> I am doing another trial with shell/liberty 98 and BP 98 with smell. In >> every case the shell smells like turps is added where as BP smells normal >> like you expect fuel to smell like. People are smelling the difference >> 100%. Some are describing the smell as paint thinners. Shell is a golden >> bright yellow colour where BP is more normal fuel colour. >> >> In germany they have zero issues of fuel turning clear fuel lines a real >> dark brown so dark you can not see brought be in 2 months. Sure happens >> here with liberty /shell >> >> So 98s are not the same. >> >> Ian mcphee >> >>> On 04/02/2015 1:31 pm, "DMcD" <[email protected]> wrote: >>> >>I'll stick to Avgas in the BD-4 even though the 7:1 compression ratio >>> >>engine (same as Super Cub) can handle unleaded from an octane rating >>> >>basis. >>> >>> Unless things have changed, with some two strokes used in SLGs like >>> the Solo engines, the manufacturer recommends using 95, not Avgas. The >>> claim is that Avgas makes the engine run rougher and vibrate more than >>> 95. >>> >>> It's difficult to get a real picture but a lot of the US experience, >>> where they tend to overcompensate and use Avgas instead of 95, seems >>> to suggest they have more problems overall, not less. Then again, they >>> can't get the recommended Castrol 2 stroke oil either. >>> >>> I tend to agree with Mike here regarding resins too. It's really >>> difficult to point your finger at the fuel without knowing more about >>> the resins used in the layup. >>> >>> And the problems and expense of wing fuel bags seem to be not worth >>> the effort. The recommendations in the manual that I have read say >>> that they cannot be left with fuel in overnight, that they cannot be >>> entirely drained either but need to have a small amount of oil in >>> them. They have a very short life span (8-10 years?) and are sodding >>> expensive to replace. >>> >>> Probably cheaper to replace than a fuselage mounted glass tank though! >>> >>> D >>> _______________________________________________ >>> Aus-soaring mailing list >>> [email protected] >>> To check or change subscription details, visit: >>> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> >> >> _______________________________________________ >> Aus-soaring mailing list >> [email protected] >> To check or change subscription details, visit: >> http://lists.internode.on.net/mailman/listinfo/aus-soaring > > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring
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