Northern Spy
Guru
- Joined
- Feb 5, 2012
- Messages
- 4,075
- Location
- Canada
- Vessel Name
- Northern Spy
- Vessel Make
- Nordic Tug 26
That is the industry view. 100%.I used to always pre-fill the filter, but recently read something from Caterpillar saying it may not be a good idea.
Filters usually flow from the outside to inside. If you introduced some crud or contamination into the center of the new filter it would be pumped directly into the bearings. Typically, if you just ran the engine to heat up the oil, there would be enough lubrication in the bearings to handle the brief time it takes for the new filter to fill.
Anyway, just thought I'd throw this out there for your consideration.
Unfiltered oil is dirtier than filtered oil. It comes ~20/18/15. We used to add oil to equipment only via a filter cart in pretty much all industries I've worked in.
Filtered oil is generally 19/17/14.
But, my view is if you are filling your engine from a bottle or pail, without a filter, it is no different than filling the filter, n'est-ce pas?
The perfect is the enemy of the good.