My dealer is not much help with this question so I'll pose it to the users. I'm not positive but I seem to remember seeing my oil level physically about half way up the sight glass near the rear PTO. Lately, it is always completely red. Am I to assume red means full? Or is the plate behind the glass red so it is beliow level? One would logically think if correct, the lower half of the circle is red and upper half is silver assuming the plate is silver. Since I cannot see a level, I can't tell. Help?