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#4434185 - 06/17/17 11:32 AM Any advantage to prefill filter?
chiefsfan1 Offline


Registered: 09/27/14
Posts: 1152
Loc: Missouri
I never have in the spin on filters, however now that I have a boosted engine would be better too fill it before I put it on?
The filter I chose is MC 910S. It looks interesting to take off, my first oil change in it.
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2014 Escape SE 1.6 EcoBoost AWD

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#4434189 - 06/17/17 11:38 AM Re: Any advantage to prefill filter? [Re: chiefsfan1]
Char Baby Offline


Registered: 05/25/05
Posts: 10023
Loc: ROCHESTER, NY
Well, if you can fill/partially fill the filter without spilling most of it out during the install, go for it. I prefill when it's convenient but, I've had vehicles where it made more of a mess than it was worth.
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#4434190 - 06/17/17 11:39 AM Re: Any advantage to prefill filter? [Re: chiefsfan1]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: Colorado
No boost going in at idle, so no difference in filtration from what you've been doing.

It may help, it might not but it certainly won't hurt. These "fill or not" threads usually get a raging debate going on, so:

popcorn
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#4434191 - 06/17/17 11:40 AM Re: Any advantage to prefill filter? [Re: chiefsfan1]
Warstud Offline


Registered: 09/02/05
Posts: 5397
Loc: MIchigan
I always do when possible...but here's a thread on the subject.

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4363266/U_Dont_Need_To_Prefill_Oil_Fil

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#4434193 - 06/17/17 11:40 AM Re: Any advantage to prefill filter? [Re: chiefsfan1]
E150GT Offline


Registered: 03/11/12
Posts: 1102
Loc: San Antonio, TX
I do in the Mazda since I can. I don't in the truck since it would make a mess. Some say not to do it since it's allowing unfiltered oil to go through the engine but I don't think it's any different than dumping your oil through the valve cover.
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#4434199 - 06/17/17 11:45 AM Re: Any advantage to prefill filter? [Re: Warstud]
chiefsfan1 Offline


Registered: 09/27/14
Posts: 1152
Loc: Missouri
Originally Posted By: Warstud
I always do when possible...but here's a thread on the subject.

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4363266/U_Dont_Need_To_Prefill_Oil_Fil


Thanks all, I'll check that thread out. The filter is on there horizontal.
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#4434234 - 06/17/17 12:36 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
kmrcstintn Offline


Registered: 05/11/06
Posts: 564
Loc: Palmyra, PA
I fill it and drain out excess...the media & space outside the center tube is filled
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#4434235 - 06/17/17 12:36 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
i_hate_autofraud Offline


Registered: 05/19/16
Posts: 705
Loc: Canada


if you're filter goes on horizontal, it's a no-go.

But for any filer that goes straight up, Ive done for yrs.

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#4434244 - 06/17/17 12:53 PM Re: Any advantage to prefill filter? [Re: i_hate_autofraud]
Kira Offline


Registered: 08/19/10
Posts: 5242
Loc: Champlain/Hudson Valley
I've read these "To pre fill or not to pre fill" threads and I've always thought that any benefit would depend mostly on engine age/condition. I also guess the "It can't hurt" school is accurate.

As far as horizontal filter applications go, you could fill the filter with oil the night before and pop it into the freezer. The next day you'd have time to spin it on drip free. Finish the rest of the oil change (add oil, clean up), wait an hour or two then start the engine.

And please remember, I said pop it into the freezer not immerse it in liquid nitrogen. Kira

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#4434258 - 06/17/17 01:01 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
69GTX Offline


Registered: 09/23/15
Posts: 3815
Loc: Connecticut
Some people think that by a pre-fill some unfiltered oil makes its way to key engine components. Probably true...and dependent on the cleanliness of the oil you bought. I just did an OCI and added 14 oz of oil to my Fram XG2 filter...which mounts nearly vertically. I think that's the best way to go.

Is there an advantage? Maybe. Is there a disadvantage? Maybe. Will it matter either way? Probably not.
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#4434267 - 06/17/17 01:12 PM Re: Any advantage to prefill filter? [Re: Kira]
chiefsfan1 Offline


Registered: 09/27/14
Posts: 1152
Loc: Missouri
Originally Posted By: Kira
I've read these "To pre fill or not to pre fill" threads and I've always thought that any benefit would depend mostly on engine age/condition. I also guess the "It can't hurt" school is accurate.

As far as horizontal filter applications go, you could fill the filter with oil the night before and pop it into the freezer. The next day you'd have time to spin it on drip free. Finish the rest of the oil change (add oil, clean up), wait an hour or two then start the engine.

And please remember, I said pop it into the freezer not immerse it in liquid nitrogen. Kira


stooges
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MacBean Clan Motto: Touch Not A Catt Bot A Targe. (Don't touch this cat without a shield).


2011 Toyota Camry XLE 2.5 I4
2014 Escape SE 1.6 EcoBoost AWD

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#4434279 - 06/17/17 01:23 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
i_hate_autofraud Offline


Registered: 05/19/16
Posts: 705
Loc: Canada


For me prefilling reduced dry cranking time right after the oil change, it adds up over the years!

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#4434291 - 06/17/17 01:34 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
AMC Offline


Registered: 10/17/10
Posts: 893
Loc: South Eastern, CT
Filters that mount at anything higher than horizontal, I don't bother. Anything lower than horizontal I fill them, at least partially. If the filter mounts facing straight up in the vertical position, I fill it totally full. Filling the will slightly reduce the time your engine runs dry, if only by a second or two. You have to oil up the gasket anyways so why not do it by dumping some oil into the filter?
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#4434294 - 06/17/17 01:40 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
Donald Offline


Registered: 03/21/04
Posts: 20457
Loc: Upstate NY
Cummins says to prefill on diesel engines.


Edited by Donald (06/17/17 01:40 PM)
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#4434307 - 06/17/17 01:54 PM Re: Any advantage to prefill filter? [Re: chiefsfan1]
PeterPolyol Offline


Registered: 03/06/16
Posts: 1345
Loc: toronto
The advantage is that whatever volume of oil goes into the filter prior to installation is directly proportional to the volume of air in the oiling system that is eliminated before the oil pump even rotates. We also know that air does not lubricate engines and that oil does.

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