Hiemedall

Hey Gus... I'm Doug... I too have a 2007 Highland Hybrid.. Over the last 2.5 to 3 years I too have seen a decline in mileage economy.. My all time high on a combined city and highway driving was 36 mpg on a full tank..... It has consistently been ebbing to now around 25 mpg.. still good.. but no where I use to be.. I was afraid my fall off occured when I started using Synthetic oil, but the dealer says that should have no issue... I have noticed the I.C. engine kicks in a lot quicker than it use to.. Maybe someone else out there can help us... Regards, Doug