Do it the smart way:
PRINT OUT YOUR IMAGE
With a ruler measure the distance from the extreme top edge of the cover to the extreme top edge of the filler plug.
Now do the same from the bottom of the filler hole to the extreme bottom edge of the cover.
Got it?
Do both images. Two photos.
The relationship of the two measurements will tell you the height orientation of the filler plug to the cover.
Compare the two RELATIONSHIPS. Percentages, whatever you care to call it.
The relationships are different. Cover to cover.
What do you come up with?
