 Leased one month ago.  Now have 1558 mi and I am at gas station 2-3 times week. Spoke to Service tech was told breaking in period. I’m getting 10 -13.9 mi according to info on Car console.  I was under impression 20 mi at least. For today’s cars better efficiency is a must.  Not being told that’s the way it is.  After insisting this sucks and not acceptable  I was told bring it in and will put on machine.  Wow I hope there is a problem or this will be a long 3 year lease