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Old 12-06-2008, 09:42 AM   #1
axelthrasher
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Default Fuel filter replacements???

I have a WRX, which has the fuel filter mounted by the driver side strut tower. My question was has anyone just replaced the cannister type with a universal inline fuel filter. I don't see how it would be any different. Plus it would make it easier to deal with as it is smaller and can move around more easily.

I was thinking... http://store.summitracing.com/partde...5&autoview=sku

Also - does anyone know how many microns the stock fuel filter actually filters out?
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Last edited by axelthrasher; 12-06-2008 at 10:10 AM.
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Old 12-06-2008, 09:58 AM   #2
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No one knows the micron level and no one ever will as there is no bling in testing fuel filters. Do what you want, but even if you rig up 13 of the in series, it won't matter. Just replace it as you like and be happy.
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Old 12-06-2008, 10:01 AM   #3
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Originally Posted by Unabomber View Post
No one knows the micron level and no one ever will as there is no bling in testing fuel filters. Do what you want, but even if you rig up 13 of the in series, it won't matter. Just replace it as you like and be happy.
Well thank you for your facetious post. That really didn't help me out at all. But upon my second look that fuel filter only has a max of 10PSI anyway. So it wouldn't work anyway.
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Old 12-06-2008, 12:34 PM   #4
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How about I piggyback a question to yours?

Is there a benefit to adding an inline fuel filter to the newer vehicles that have only the in-tank filter?

As to your original question: I don't see why there would be a problem with what you propose.
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Old 12-06-2008, 01:03 PM   #5
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Originally Posted by bulwnkl View Post
How about I piggyback a question to yours?

Is there a benefit to adding an inline fuel filter to the newer vehicles that have only the in-tank filter?

As to your original question: I don't see why there would be a problem with what you propose.
The advantage that I see is eliminating the in tank filter. Then running an in-line filter because it is a lot easier to get to and change out than an in tank filter.
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Old 12-06-2008, 01:54 PM   #6
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More then likely you will never need to deal with the in-tank filter anyways, even if you put 175k on your car. Why bother making it "easier" to replace if you really don't need to mess with it in the first place?

Their is an obvious difference between a filter for the older 5 PSI pressure carburetor engines and a 45 PSI fuel injected engine. Cant use the cheap glass see through filters on our cars.

What you may need here however is an ability to fabricate. Jegs has what you want if you can fabricate.
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Old 12-06-2008, 01:56 PM   #7
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It wasn't facetious. You could have certified HEPA filtering capability along with 0 PSI loss and you'd net 0HP and 0TQ and 0 reliability over what you have now. Your car has the OEM unit mounted where it's accessible already, it's not like it's an in tank pain to swap out. If you are just looking for a fun project, sure...have at it and I encourage you to do so, but to swap it out to make a 10 minute filter change into a 5 minute filter change is really spinning your wheels. It's your car though, but I can see the logic with your thought process.
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Old 12-06-2008, 02:04 PM   #8
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the ONLY advantage of using any other than stock filter is being able to move it out of the way of something that needed to use the space where the stock filter sits

forget all the rest as mental mastrubation and just change the damned thing regularly
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Old 12-09-2008, 08:59 AM   #9
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So far, I have owned 9 cars in my life, and I have NEVER replaced a fuel filter (including 2 escorts with 200k+ miles). There are so many filters BEFORE the fuel even gets into your tank, your filter is usually not doing much. Unless you pour sand in your gas tank, it's likely that your fuel filter will outlast your car. So, unless there is a problem, leave well enough alone.
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Old 12-10-2008, 01:20 PM   #10
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Quote:
Originally Posted by Bacon117 View Post
So far, I have owned 9 cars in my life, and I have NEVER replaced a fuel filter (including 2 escorts with 200k+ miles). There are so many filters BEFORE the fuel even gets into your tank, your filter is usually not doing much. Unless you pour sand in your gas tank, it's likely that your fuel filter will outlast your car. So, unless there is a problem, leave well enough alone.
Worst. Advice. Ever.

The fuel filter has a replacement period listed in the owners manual. Sediment develops in tank, and in the ground at pumps.

Ever fill your tank while the tanker was delivering fuel? God help your tank and what it kicked up from the bottom of the ground tank.

There was a thread awhile back that showed fuel that passed through a dirty fuel filter and the same fuel passed through a new fuel filter and there was a obvious difference.

Replace the filter as your owners manual indicates, I have an intank filter and im debating removing the intank filter and installing a inline filter for obvious reasons.

Last edited by Engmus; 12-10-2008 at 02:39 PM.
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Old 12-10-2008, 03:40 PM   #11
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Worst. Advice. Ever.
agreed. take out your current fuel filter and let the dirty side drip into a glass, you'll see plenty of debris in there. That tends to clog up your fuel filter over time. your previous cars may not have had a filter change, but i'll bet they wanted it.
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Old 12-11-2008, 10:22 AM   #12
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agreed. take out your current fuel filter and let the dirty side drip into a glass, you'll see plenty of debris in there. That tends to clog up your fuel filter over time. your previous cars may not have had a filter change, but i'll bet they wanted it.
Maybe, but my cars always run well. The suby service manual reccommends every 30k and requires it at 120k. I was sharing what I do, and I've never had a problem. By all means, do what you feel is best.
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