so i am driving along and it is about 3000 Km since i changed my oil .bike has been running great until now with 4000km on the clock .then i slow down for a traffic light and it doesnt downshift (auto tranny) .i manage to get it going in 3rd gear and by manually downshifting i only get stuck in 3rd and 2nd at a few intersections and i get it 120km to home .from what i have read here on the forum , dirty fiters have an effect on shifting , so i change the oil and filters and use the brp full synthetic .but i only had 4 litres and it doesnt completly solve the problem .so i buy some amsoil and add some more and it works better but sometimes it wont get out of reverse for 30 seconds or so .i start thinking about these problems and the common denominator is oil level .after 3000 km i have used up about .3 L according to other threads i have read on all the spyder forums .and that is when shifting problems start .with too little oil , auto downshifting goes wonky .and you check the oil level exactly the way the manual says and it is in spec .but for proper auto downshifting the oil level needs to be higher , where it was when you changed the oil .but i got it up a little too high and then it gets stuck in reverse for about 10 seconds .once the oil is up to operating temperature ,that problem disappears .so i changede the oil again , this time i used amsoil 10w40 , put in the exact amount and everything works perfect .and i have a litre in the frunk for when i use a bit and i need to top it up .