Red, my 525 exc,which is essentially the same motor gets anywhere from 15-20 km per liter. 15km in baja sand washes, 20ish when it's not churning as hard.oil changes every 20 hr's( i've got a ht oil cooler, so almost 2 lt per change).everything else on an as needed basis. The RFS ktm engine is as close to bullet proof as you will find . You may have beta's engine if your bike is 08 or newer? I haven't heard much about them, but on that note-no news is good news right?