Ok i got in the car yesterday and used the nav, as i was going to a unfamiliar place.
Before setting destination , Gom showed 411, then when i hit start navigation, gom goes to 464.
If i check battery screen, shows whatever gom says.
Im thinking its taking speed limits along the route into consideration. Because along that route, max road speeds were 80 or 90 km.
I tried setting it to longer prev destinations but the difference was only 6km. Because i believe it was mostly utilizing 100km speed routes.
I am going to try setting that rural route today again and see if its a big difference again.