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Old 05-28-2011, 03:31 PM   #1 (permalink)
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Default Mobil 1 Filter Much Smaller then Subaru

I did my searches on the forms to see if anyone else brought this up before, but I changed my oil with the Mobil 1 m1-108 filter like everyone says to use. Am the only one to step up and ask why is it so much smaller then the Subaru Genuine Parts filter?

Just doesn't seem right to me?
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Old 05-28-2011, 03:45 PM   #2 (permalink)
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Originally Posted by liquidride59 View Post
I did my searches on the forms to see if anyone else brought this up before, but I changed my oil with the Mobil 1 m1-108 filter like everyone says to use. Am the only one to step up and ask why is it so much smaller then the Subaru Genuine Parts filter?
The stock Subaru is 2.5 inches tall. As I recall that is slightly smaller than the Mobil-1 filter.
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Old 05-28-2011, 03:58 PM   #3 (permalink)
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What year is yours? Your profile says 2011, which has an entirely different motor than previous years and uses a new filter thats different from the filter used on all previous subarus. No aftermarket replacement yet it seems.
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Old 05-28-2011, 04:31 PM   #4 (permalink)
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Take a look at this thread. Any harm in oversizing an oil filter?

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Old 05-28-2011, 06:57 PM   #5 (permalink)
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Use the filter the dealers sell, most all after market filters have incorrect pressure spec for the bypass valve. 2009, 2010 this spec was 23.2 psi. Not sure if its different for 2011, however.
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Old 05-29-2011, 12:31 PM   #6 (permalink)
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If you have a 2011 2.5 N/A Forester, you have the wrong oil filter. Don't buy a filter that works with 2009 or 2010. Only use the one shown in the owner's manual.
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Old 05-31-2011, 05:15 AM   #7 (permalink)
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according to mobile 1's site it is the right filter, it just seems so small compared to the OEM one.
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Old 05-31-2011, 05:15 AM   #8 (permalink)
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I would post the url but it's saying i need 15 or more posts.
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Old 05-31-2011, 05:39 AM   #9 (permalink)
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Quote:
Originally Posted by liquidride59 View Post
according to mobile 1's site it is the right filter, it just seems so small compared to the OEM one.
The Mobil 1 filter is the wrong filter. Even my dealer gave me the wrong filter.

Only use the filter shown in the owner's manual unless you are 150-percent sure an aftermarket filter is correct.
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Old 05-31-2011, 07:43 AM   #10 (permalink)
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Quote:
Originally Posted by liquidride59 View Post
according to mobile 1's site it is the right filter, it just seems so small compared to the OEM one.
Check again. The M1-108 is Mobil's recommendation for the turbo engine (2458 cc) in the 2011 Forester (oil filter underneath engine). Mobil recommends their M1-104 for the 2011 Forester with the new normally-aspirated (non-turbo) 2498 cc engine (oil filter "on top"). I don't know if it's a suitable substitute or not.

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Old 05-31-2011, 08:56 AM   #11 (permalink)
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wow that' s crazy...if you click on your link your right it says 104. if you do the guide that says what oil is right for me and punch in the same car, it will say the Mobil 1 0w-20 and click here for filters. You click on it and it says 108. I will go see if the 104 filter looks the same size.

Thank you for showing me that.
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Old 05-31-2011, 10:14 AM   #12 (permalink)
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Quote:
...it will say the Mobil 1 0w-20 and click here for filters. You click on it and it says 108.
Bad news!!

Best of luck,
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Old 05-31-2011, 05:16 PM   #13 (permalink)
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I only use OEM filters, especially when it calls for specific bypass valve pressures. In fact, I use the original Japanese filters for my Subie and the original Japanese filters for my 4Runner. Both manufacturers moved to slightly cheaper filters since...still my second choice. After that, I'd use Mobil 1 or Pure One. Some say I overanalyze and that I'm a big geek when it comes to these things. Guilty as charged. :)
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Old 07-14-2011, 10:28 AM   #14 (permalink)
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Default M1104 is the correct filter

I just bought Mobil 1 0W-20 oil, and they sold me the M1108 filter for my non-turbo model Forester. I opened the hood and saw the size difference so I called Champ Oil Filter (manufacturer of Mobil 1 filters) 1-800-882-0890, and they confirmed it should be the M1104 filter for the non-turbo model. I know their website gives you two different answers based on how you search out the filter for your vehicle, but I was told the M1108 (still correct for older engines and 2011 turbo) was a mistake that is being updated in their system to now reflect the M1104 for the newer designed engine. I was told, however, the M1108 will still work in the 2011 non-turbo, but the better choice would be the M1104.
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Old 05-04-2012, 04:34 PM   #15 (permalink)
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So do people here recommend the M1 104 filter?

Today I was at Advance Auto buying my oil and they were running a special where buying the oil and the M1 104 filter would be less than just buying the oil.

Unfortunately, I had already bought my Subaru filter from the dealership.

But is this M1 104 filter a suitable substitute?
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