i'm sure ive read on here somewhere that you place your hand on the side of the oil tank and line your knuckles with the top of the tank and where the end of your fingers are is about where the oil level should be, but dont quoet me on this as i could be wrong. also i think it would be better to fit the sticker with the oil tank fitted and on level ground to get the sticker level when fitted. all the best fella, chicago