Gas Mileage???

Thank you Mattax

I will check for the AFR Numbers tomorrow. Will take some pics from the plugs also.
Perhaps the fuel we use here is a little better than yours ? I use a fuel that not contains ethanol.. ( is a little more expensive..but well worth the money ) This gas has 102 European Octane.. so about 97 -98 of your Ron /moz gas
We have also Shell V Power that has 100 Octane.. 95-96 in your numbers..

Greetings Juergen