The dipstick on the floorboards has had the rubber top part worn off. To pull it out I need to use pliers. The dealer told me if you push it in too far you will get an inaccurate reading. Does the rubber part tell it where to stop and without it I am pushing it in too far? I really don't want to spend $33 for a new one and I see aftermarket ones for much less. I could not find this dipstick on the parts diagram to match it with the aftermarket ones. Also, is the reading on the side window down below something else? Thank you!