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#1864000 - 04/19/10 09:51 PM Reusing Oil Filter Question
ZZman Offline


Registered: 03/17/08
Posts: 4228
Loc: Michigan
How many people here regularly don't change their oil filters when they do an oil change?

I just can not do it. I have to put a new filter on too.

Has anyone run more than 2 oil changes on the same filter?

Do you normally at least dump the old nasty oil out of it and reinstall it or just leave it alone?


Edited by ZZman (04/19/10 09:52 PM)
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#1864012 - 04/19/10 09:58 PM Re: Reusing Oil Filter Question [Re: ZZman]
hate2work Offline


Registered: 09/04/08
Posts: 4616
Loc: Western Washington

I think it was Honda that had factory recommendation of changing the filter every other oil change. Not sure if that's still the case.

I'm the same as you, I put a new one on also, it would bother me too much not to change it.
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#1864019 - 04/19/10 10:00 PM Re: Reusing Oil Filter Question [Re: ZZman]
sciphi Offline


Registered: 03/24/07
Posts: 8312
Loc: Upstate NY
Huh? Re-use the filter? Unless it's an Amsoil EaO or maybe a Mobil 1, it's not being re-used.

I may try it. My fiancee's Honda says to re-use the filters in the owner's manual.
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#1864029 - 04/19/10 10:07 PM Re: Reusing Oil Filter Question [Re: sciphi]
HTSS_TR Online   content


Registered: 04/17/06
Posts: 12900
Loc: Irvine, CA
I change '94 LS400 oil filter only once a year, the OCI is 6-7k/60mo with dino and 12-14k/12mo with syn. Yes, I re-use oil filter on LS400 if the oil in the sump is dino.
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#1864030 - 04/19/10 10:09 PM Re: Reusing Oil Filter Question [Re: sciphi]
Bluestream Online   content


Registered: 09/13/03
Posts: 3844
Loc: Waterloo, ON
I've done it before, but I take it off and drain the old oil out before putting it back on. Back in the 60'70's and 80's it was always new filter every second oil change. No big deal really. filters actually get more efficient over time


Edited by Bluestream (04/19/10 10:23 PM)
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#1864037 - 04/19/10 10:14 PM Re: Reusing Oil Filter Question [Re: Bluestream]
ted s Offline


Registered: 03/01/04
Posts: 774
Loc: Albany NY
just tske it off, wash out with soap and water and reinstall. just kidding.

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#1864056 - 04/19/10 10:31 PM Re: Reusing Oil Filter Question [Re: ted s]
Audi Junkie Offline


Registered: 11/03/02
Posts: 11247
Loc: PA
Drain and re-install.

Works good with the dino oil at shorter intervals.

When I do a cost analysis for the purpose of debate on this forum, I do not consider changing the filter more often with a normal oil than an extended drain oil. 10k is 10k, regardless if it's 10k all on one fill of synth or 5k and 5k of dino.

Cut open a few filters and you will see how there is really nothing at all trapped in them.
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#1864059 - 04/19/10 10:33 PM Re: Reusing Oil Filter Question [Re: ZZman]
Art_Vandelay Offline


Registered: 11/30/08
Posts: 1339
Loc: USA
It would seem to me that most auto manufacturers figure that, at least OEM, filters are good for somewhere between 10 and 20,000 miles.
It's probably the best way to go. That's half as many dry starts which is probably worse for the car than half a quart of used oil.
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#1864063 - 04/19/10 10:36 PM Re: Reusing Oil Filter Question [Re: Art_Vandelay]
Chris142 Offline


Registered: 06/05/03
Posts: 11081
Loc: apple valley, ca
I let the oil filter on my bike go 2 or 3 changes. It's a cartridge filter and I have never seen anything stuck in it. I change the oil about every 500 miles or when the shifting gets notchy.
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#1864065 - 04/19/10 10:37 PM Re: Reusing Oil Filter Question [Re: Art_Vandelay]
labman Offline


Registered: 03/14/03
Posts: 8711
Loc: Nothern USA
I have always used cheap oil filters, AC, ST, Fram, Purolator Premium Plus. etc. I change every time.

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#1864078 - 04/19/10 10:43 PM Re: Reusing Oil Filter Question [Re: ZZman]
Hemi426 Offline


Registered: 03/21/10
Posts: 754
Loc: PA
I would never, under any circumstances, re-use a dirty filter. Not even my $14.83 Bosch Endurance Plus filters.

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#1864099 - 04/19/10 10:56 PM Re: Reusing Oil Filter Question [Re: Hemi426]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
Well, Hemi, how long is your OCI?

Let's say your oil and filter change is currently 5k.

You have no problem using that filter for 5k, right? It's perfectly good for the entire 5k from beginning to end, right?

Now change the oil out @ 2500 ..just because you like to waste money on oil. Isn't that filter JUST as good as it was when you did 5k/5k??

It's the same deal if one is driving longer drain usage profiles ..but doing shorter drains with shorter drain fluids.
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#1864112 - 04/19/10 11:06 PM Re: Reusing Oil Filter Question [Re: Hemi426]
natesmith65 Offline


Registered: 04/18/10
Posts: 8
Loc: Oklahoma
How could a dirty oil filter become MORE efficient over time? I would never recommend someone use a dirty filter of any kind.
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#1864189 - 04/20/10 01:20 AM Re: Reusing Oil Filter Question [Re: natesmith65]
Colt45ws Offline


Registered: 08/15/06
Posts: 7359
Loc: Central Washington
I ran a EaO for two 5k (or so) runs and the insolubles were lower after the second run than the first.. (.2 vs .3)
This is duplicated from the other thread, but Ill add a little.
I did not drain the filter. If you are going to reuse I would not recommend removing the filter. I was going to remove and drain until I read something Johnny, I believe, posted about filter gaskets only being designed to be used once. Thinking about how the gasket (de)forms after a use I agree with him; so I left it on in between.
I have not run more than two runs on one filter and I removed it for a PureOne. I decided I would only run one year on a filter, just to keep the number of heat cycles on it down. Most of the garbage is made during warm-up so I felt one year was reasonable. Its not likely I will reuse the PureOne, since they are so cheap, but I may..
Just 'cause I can..
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#1864210 - 04/20/10 04:12 AM Re: Reusing Oil Filter Question [Re: Colt45ws]
Shannow Offline


Registered: 12/12/02
Posts: 26083
Loc: a prison island
Back when OCIs were 5,000km, most manufacturers recommnded 10,0000km filter changes (also recommended not changing oil brands between filter changes).

Most cars now spec 10,000-15,000km OCIs, which is really no great difference IMO.
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