Pre fill oil filter?
Logistics Pro
Joined: Mar 2005
Posts: 2,536
Likes: 200
From: southeast PA
Always. And when you do be sure to do your best to fill it through the outside holes and let it filter to the center. Otherwise you send unfiltered oil right to the bearings. Granted it's new and should be clean..............but you never know.
Hotshot
Joined: Nov 2013
Posts: 10,107
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From: Hempstead, TX
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
I see no need. Most of the gas burner engines use to have the oil filter mounted at an angle that would not allow you to pre-fill the filter. Never heard of any of the hipo engines such as the 427, boss 302 or boss 429 and similar CJ/SCJ engines ever have a problem by not trying to fill the filter during an oil change.
There should be enough oil film on the bearings and parts to prevent problems prior oil filter filling and pressure up to normal psi.
For me, filling the filter is just an opportunity to drop the filter or turn it on its side prior to installation and making a big mess....lol
There should be enough oil film on the bearings and parts to prevent problems prior oil filter filling and pressure up to normal psi.
For me, filling the filter is just an opportunity to drop the filter or turn it on its side prior to installation and making a big mess....lol
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FTE Legend
Joined: Mar 2017
Posts: 31,874
Likes: 9,171
From: Western NY
I used to do it for my old truck, my 96 F250 after I put the dual filter setup on with the adapter plate on the 351w. I can't do it to my son's 99 Cherokee XJ as the filter sits horizontal on the motor, same as on the 22re's that my 88 and 94 4Runners came with. But when I have changed my wife's oil in the 09 Escape, I've prefilled the filter. Now, I've been taking it to a friend's shop. I take my new 16 to the dealer.
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Logistics Pro
Joined: Mar 2005
Posts: 3,533
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From: West Michigan
Oh, My....
Laughing Gas
Joined: Jul 2010
Posts: 1,155
Likes: 31
From: Idaho
Oil
Yep I fill it and then put it on. It holds a little more then a quart so I fill it. The oil pump would have to pump a quart + before the oil leaves the filter without pre filling.
But I don't sweat filling it to the very top
But I don't sweat filling it to the very top
Hotshot
Joined: Apr 2013
Posts: 10,119
Likes: 652
From: NH
I pre-fill mine as well. Plenty of mechanics have told me it is not necessary...but common sense tells me it will certainly be beneficial to not starve the engine of oil for 3 seconds or so while the pump fills the filter...
Senior User
Joined: Dec 2014
Posts: 212
Likes: 4
But, to be concerned with trying to pour oil thru the check valve holes of the filter to make sure it gets filtered, is way way way over kill imo, unless you first filter the other 12 quarts before you pour it down the oil fill tube..?
jmo