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post #1 of 10 Old 09-19-2014, 08:25 PM Thread Starter
coconut_pete
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oil filter question....

i have an '03 tj with a 4.0 the mobil oil filter that it calls for is an m1-204, however that one doesn't fit. i have to use the larger m1-209. anybody else have this issue? i have searched and searched to try to figure out how this could be with no luck. the number stamped on the passenger side of the block is 207mx16.

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post #2 of 10 Old 09-19-2014, 08:42 PM
jkp
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What do you mean it doesn't fit?

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post #3 of 10 Old 09-19-2014, 09:00 PM Thread Starter
coconut_pete
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the 204 is smaller than the mounting surface
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post #4 of 10 Old 09-19-2014, 09:59 PM
chris142
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those filters are interchangeable. both are 3\4x16 threads and both use the same gasket,bypass etc. just one is short and fat and one is longer and skinny. if one wont screw on you may have gotten a dud.bad thread maybe.
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post #5 of 10 Old 09-20-2014, 06:30 AM
jkp
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204 is the correct one. Be sure the filter is a 204, sometimes they are in the wrong box.

Or it is damaged.

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post #6 of 10 Old 09-20-2014, 07:35 AM
RandyTJ
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I always use the Motorcraft FL1 A or a Purolator L 30001.

Both are the larger size filters.

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post #7 of 10 Old 09-20-2014, 09:00 AM
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Quote:
Originally Posted by RandyTJ View Post
I always use the Motorcraft FL1 A or a Purolator L 30001.

Both are the larger size filters.
Agreed - if the larger filter fits, why not? More filtration capacity (within reason) is generally a good thing.

I tend to use the PureONE filters, and I also like Baldwin, but they are a pain to find. The outer can on the Baldwin is so thick I'd swear you can hammer nails in with it.

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post #8 of 10 Old 09-20-2014, 09:29 AM
aparke4
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M1-301 for the 4.0 iirc.
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post #9 of 10 Old 09-21-2014, 07:26 PM Thread Starter
coconut_pete
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thanks for the input. it was the "long and skinny" vs the "short and fat" thing that had me worried.
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post #10 of 10 Old 09-21-2014, 08:24 PM
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Quote:
Originally Posted by aparke4 View Post
M1-301 for the 4.0 iirc.
That's what I've been using. Although, I don't think I have a good argument for why I use the larger filter.

The one time I went to Grease Monkey, I was criticized for wasting my money by using the larger filter. That filter was 3k miles old, which they forced me to change because all filters filter the same.

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