bvolcko38 wrote:I have an MGL efis with sonex supplied probe. I calibrated with 100ll. Using 90 or 91 non ethanol, my fuel gauge reads about 2 gallons low.
bvolcko38 wrote:I think its an electro-chemical issue. 100ll has different properties from 90 non ethanol. I could re calibrate with non ethanol.
sonex892. wrote:Skip. Australian fuels may have more similar dielectric properties. I have been using both Avgas and 98 octane (90% 98 octane) with this probe for 13 years now. Have never seen difference in level readings when alternating or mixing fuels. I use a calibrated dipstck to confirm fuel level preflight.
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