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Old 06-21-2018, 05:44 PM   #1
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8.1 filter n oil capacity

I have a 2003 w-22 8.1

Does anyone have the part number for the larger oil filter and an roundabout amount of oil needed for change?


Thanks in advance
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Old 06-21-2018, 05:56 PM   #2
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Napa Gold 1060 1 Qt
Wix 51060 1 Qt
7 quarts of oil
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Old 06-21-2018, 05:57 PM   #3
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Hello
I have the same yr & the 8.1
Wix filter oil 51794 is the larger filter I think it's 2 qt.
I read more than once that 8 qts is what you need with that filter. I was over full with 8qt so I would put in 7qt & start checking it.
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Old 06-21-2018, 06:42 PM   #4
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I think the stock oil filter is 1/2 quart, though many people use 1 or even 2 quart filters. The fitting is recessed enough that even the 2 quart is fairly well protected. I have only used the 1 quart filters on my 8.1L
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Old 06-21-2018, 06:50 PM   #5
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As long as the filter does not hang below the pan your good to go. I ran 2 qt filters for the better part of 10 years with no issues.
Link to filter numbers http://www.oemys-performance.com/whparts1.htm#filters
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Old 06-21-2018, 06:52 PM   #6
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I use the AC PF932 which allows me a total capacity of 8 qts. Do a search for Omey's website. He has a listing of the proper filters for the 8.1. His website has a wealth of information for anyone with a Workhorse chassis.
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Old 06-22-2018, 09:26 PM   #7
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Mobil 1 Extended Performance filter

If that isn't available I'll go with either a WIX or NAPA Gold.
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