Add oil when adding bypass? - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 08-17-2011, 07:36 AM Thread Starter Fanatic
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Add oil when adding bypass?

I'm going to be adding the oil bypass filter this weekend. I know the truck holds 15qts. but it seems logical to bump that to 16 to make up the extra room in the system caused by the 2nd filter.

Anyone have any experience with this?

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post #2 of 5 Old 08-17-2011, 08:22 AM
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Prefill your oil bypass filter before you hang it on the filterhead, or add a quart.
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post #3 of 5 Old 08-17-2011, 09:06 AM
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Depends on the size of the filter. Like NYC said, Prefill the filter and then after running check the level and top off as needed. Then you'll know how much more oil to put in.
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post #4 of 5 Old 08-17-2011, 01:50 PM
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my FS2500 requires about 1.8 additional

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post #5 of 5 Old 08-17-2011, 03:51 PM

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I use 15 quarts when I swap out both filters. Past years people recommended 14qt oil changes to prevent the "romps". 15 qts doesn't bother my rig.

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