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Hi All,

Wondering if anyone has had draining issues with using a Fumoto valve. From what I can tell, the valve significantly reduces the diameter of the drain hole, so I understand that flow will be slower.

My concern is, though, that the reduced diameter could also lead to pooling of a few millimetres of old oil below the now smaller drain opening, and that this could result in larger amounts of old oil debris staying in the pan. Has anyone with a Fumoto ever removed it right after a full drain to see what is left behind?

-BFD
 

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10,333 Posts
No worries. The amount that is left behind will be re-filtered anyway.
I always drain when the oil is hot.
 

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Basically what Willie said, a tiny bit more of old oil wont be drained, and drain it hot to get as much out as possible. S'all good
 
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