My 2018 Taurus 3.5L has an usually high level of fuel dilution. Don't know why. Driving habits haven't changed. Used 4 qrts RGT 2 Qrts of QS FS 0w20. The only thing I changed is I've been using non ethonol fuel these last 4 tanks. Anyone else experimec this. Oil going back in is 5w20 RGT with champion filter.