The oil level label was on the outside of the casing - it's probably gone by now! I think that the level mark was also pressed into the outside casing - it's at a level about 0.85 litres up from empty.
Are you aware of this site yet?
Fill to the mark and don't worry about the transfer. The holes are there by design and transfer is going to occur anyway. If I had time I'd try to find you a proper explanation - but I haven't.
Hi all Can anyone advise whether the oil level in Ser III filter is supposed to spill over into the inner ring through the small holes and be the same level as in the outer "ring" of oil. Any quick response so I can close up and carry on would be appreciated. James 13h00
Something to do with inclines when off road? TonyB
Yes. Both the outer and inner parts are filled to the same level - that's why there are holes to make sure both are filled. Level is to the step in the outside. JD
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