I leave my filter on, the whole point of me not changing it for 2x OCI is so i can avoid the filter mess and hard to reach spots and also oil down my arm as well as less time for oil pressure to come back up.
Using oil filter for multiple OCs
- Thread starter Ga129
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An added bonus of keeping the oil filter when doing an oil change is improved particulate filtration in the oil. Much like how a partially loaded air filter cleans better than a new one.
Just make sure your engine is clean inside, so you steer clear of going into bypass mode. Personally, I change my oil filters every other oil change.
Just make sure your engine is clean inside, so you steer clear of going into bypass mode. Personally, I change my oil filters every other oil change.
I can see a reason to be afraid. Some filters stick and if it's wrenched off it can get dented and putting that back on is a bad idea. I think it's better to simply leave it on or replace it.
One or the other.
Originally Posted By: Triton_330
I disagree. Take it off, drain it, and put it back on. The more "old" oil you have in your engine, the lower the TBN of the new oil.
There is nothing to be afraid of by taking it off [draining it] and putting it back on again.
More new oil = longer reasonable OCI (oil change interval).
~ Triton
One or the other.
Originally Posted By: Triton_330
I disagree. Take it off, drain it, and put it back on. The more "old" oil you have in your engine, the lower the TBN of the new oil.
There is nothing to be afraid of by taking it off [draining it] and putting it back on again.
More new oil = longer reasonable OCI (oil change interval).
~ Triton
Originally Posted By: BlueOvalFitter
Originally Posted By: Ga129
Originally Posted By: BlueOvalFitter
Z06, should I add my input to the OP's Q?
"Yes, let me hear it." **looks down at signature** "Nevermind."
Haha. But for real, I've never reused an oil filter before, but figured if I'm not hurting anything and can save a few $ then why not, But I'd love to hear what you've got. I'm all about learning!
I just think, IMHO, that a new oil filter is just cheap insurance. I mean, yes, the small amount of dirty oil left in a used oil filter "should" not harm anything, but, why take a chance?
Even Honda recommends to use an oil filter twice. I am guessing the engineers have done a lot of testing and know what they are talking about. But, I will ALWAYS use a new oil filter at every OCI.
You do what makes you sleep better at night.
"One Filter, One OCI!"
I change the filter every time too. My owners manual states to change the filter with the oil. One of my filters holds close to a qt. of oil, leaving it on IMO will pollute the new oil with close to a qt. of oil, no thanks. So much for a fresh fill of oil.
Like you said, do what makes you feel good. I like changing them with the oil.
Originally Posted By: Ga129
Originally Posted By: BlueOvalFitter
Z06, should I add my input to the OP's Q?
"Yes, let me hear it." **looks down at signature** "Nevermind."
Haha. But for real, I've never reused an oil filter before, but figured if I'm not hurting anything and can save a few $ then why not, But I'd love to hear what you've got. I'm all about learning!
I just think, IMHO, that a new oil filter is just cheap insurance. I mean, yes, the small amount of dirty oil left in a used oil filter "should" not harm anything, but, why take a chance?
Even Honda recommends to use an oil filter twice. I am guessing the engineers have done a lot of testing and know what they are talking about. But, I will ALWAYS use a new oil filter at every OCI.
You do what makes you sleep better at night.
"One Filter, One OCI!"
I change the filter every time too. My owners manual states to change the filter with the oil. One of my filters holds close to a qt. of oil, leaving it on IMO will pollute the new oil with close to a qt. of oil, no thanks. So much for a fresh fill of oil.
Like you said, do what makes you feel good. I like changing them with the oil.
I wouldn't change the oil without also changing the filter, especially if you're going to all the trouble of removing the filter and dumping out the oil that may be in it. While I wouldn't spend a moment fretting over "polluting" the new oil by reusing the oil filter, I usually run my oil to 6,000 or 7,000 miles and don't run filters beyond that.
If you're one of the few folks left who actually believe in the 3,000 mile oil change and don't want to change the filter at the same time, just leave it on. The small amount of oil left in it isn't going to hurt anything whatsoever. There is probably as much leftover oil in different areas of the engine as there is in the filter.
If you're one of the few folks left who actually believe in the 3,000 mile oil change and don't want to change the filter at the same time, just leave it on. The small amount of oil left in it isn't going to hurt anything whatsoever. There is probably as much leftover oil in different areas of the engine as there is in the filter.
many new filters are really small- not much old oil in them
JHZR2
Staff member
I've proven to myself that filters are perfectly fine going 15k miles and two years, per the OLM in my Saab.
Honda only requires a change every other oil change. In the van,math at means about 10k on the filter, and on the accord, I have no idea, but right now it looks like 12k mile ocis, so 24k on the filter if I let it go twice. Remember that the engine isn't always running though.
I'm honestly not going to worry about it. I'm going to run consistent oils in the vehicles, and leave the filters on for double ocis. If nothing else it saves me a step, some oil drips and a few bucks. None of those are very consequential in and of themselves, but I have no concerns wi long ocis or time on a filter, so it's ok with me.
Honda only requires a change every other oil change. In the van,math at means about 10k on the filter, and on the accord, I have no idea, but right now it looks like 12k mile ocis, so 24k on the filter if I let it go twice. Remember that the engine isn't always running though.
I'm honestly not going to worry about it. I'm going to run consistent oils in the vehicles, and leave the filters on for double ocis. If nothing else it saves me a step, some oil drips and a few bucks. None of those are very consequential in and of themselves, but I have no concerns wi long ocis or time on a filter, so it's ok with me.
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Anyone showing data particle count UOAs showing the interval effectiveness of their filter at 15k compared to filters changed at 5k, 10k, 15k, or at 7.5k and 15k????
I know Amsoil had filter clogging issues with some engines and bypass flow wasn't enough.
I know Amsoil had filter clogging issues with some engines and bypass flow wasn't enough.
Originally Posted By: edwardh1
many new filters are really small- not much old oil in them
Exactly why I change them every oil change. You never know when they are in bypass mode.
5K on Tacoma, 6K on Subaru. Exactly what they recommend. Syn and premium filter. Not looking to save 10 bucks every year on oil changes on my vehicles.
I sleep better at night.
many new filters are really small- not much old oil in them
Exactly why I change them every oil change. You never know when they are in bypass mode.
5K on Tacoma, 6K on Subaru. Exactly what they recommend. Syn and premium filter. Not looking to save 10 bucks every year on oil changes on my vehicles.
I sleep better at night.
Originally Posted By: aircooled
Originally Posted By: edwardh1
many new filters are really small- not much old oil in them
Exactly why I change them every oil change. You never know when they are in bypass mode.
5K on Tacoma, 6K on Subaru. Exactly what they recommend. Syn and premium filter. Not looking to save 10 bucks every year on oil changes on my vehicles.
I sleep better at night.
Great response!
Originally Posted By: edwardh1
many new filters are really small- not much old oil in them
Exactly why I change them every oil change. You never know when they are in bypass mode.
5K on Tacoma, 6K on Subaru. Exactly what they recommend. Syn and premium filter. Not looking to save 10 bucks every year on oil changes on my vehicles.
I sleep better at night.
Great response!
Originally Posted By: 901Memphis
I leave my filter on, the whole point of me not changing it for 2x OCI is so i can avoid the filter mess and hard to reach spots and also oil down my arm ...
I think this would be the only valid point not to change oil filter on every oil change.
I leave my filter on, the whole point of me not changing it for 2x OCI is so i can avoid the filter mess and hard to reach spots and also oil down my arm ...
I think this would be the only valid point not to change oil filter on every oil change.
Originally Posted By: finmile
Originally Posted By: 901Memphis
I leave my filter on, the whole point of me not changing it for 2x OCI is so i can avoid the filter mess and hard to reach spots and also oil down my arm ...
I think this would be the only valid point not to change oil filter on every oil change.
Wearing a rubber glove while putting a Zip-Lock bag around the filter would eliminate this.
Originally Posted By: 901Memphis
I leave my filter on, the whole point of me not changing it for 2x OCI is so i can avoid the filter mess and hard to reach spots and also oil down my arm ...
I think this would be the only valid point not to change oil filter on every oil change.
Wearing a rubber glove while putting a Zip-Lock bag around the filter would eliminate this.
I always take it off and drain...never had a "seal" break in over 200 times...have you seen the size of the rubber gasket? How does it seal one minute then leak the next? Little effort involved to drain the old oil
Ga129, you are doing the right thing. Leaving the Ultra on, no need to take it off at all, means the extra dirt holding capacity of the Ultra is used. Don't go past 15,000 miles just to be careful though.
Moly filtered out? Some will get caught in the filter. The Ultra uses depth filtering which does get a small percentage of the 1 to 2 micron moly particles. Not much though. Only half the 5 micron particles get caught by the Ultra, so 1 to 2 micron particles make it through the vast majority of the time.
Moly filtered out? Some will get caught in the filter. The Ultra uses depth filtering which does get a small percentage of the 1 to 2 micron moly particles. Not much though. Only half the 5 micron particles get caught by the Ultra, so 1 to 2 micron particles make it through the vast majority of the time.
To me, it depends on what you're using-I've proven that a Fram Ultra can handle 10K easily, & the xB in my sig has an XG3600 on it that is going for 20K on it's 2nd OCI (left on, did not drain, M1 5W30 EP). Now if you're using a straight cellulose filter, like BOF's favorite, Motorcraft, or, God forbid, a Puro jobber or Classic-then I would (& do) put on a new one-because they're just not strong enough, PERIOD!
Of all the manufacturers that advise running the filter for more than one OCI, I'm not aware of any that advise removing it to drain. With a properly functioning ADBV it should be difficult to drain anyway right?
IMO if you're going to take it off, replace it, if you're going to run it for more than one OCI leave it in place. The potential for creating an issue far outweigh the potential benefit for removing it.
IMO if you're going to take it off, replace it, if you're going to run it for more than one OCI leave it in place. The potential for creating an issue far outweigh the potential benefit for removing it.
Originally Posted By: OneEyeJack
Someone above, mentioned a "dry start" if you use a new filter or drain the filter and replace it.
Can't happen. Lack of an oil pressure reading for an idiot light does not mean lack of lubrication during the start. Your starter might not even be able to budge a dry engine around enough to get it started.
There's plenty of lubrication going on during the start process long before full pressure is ever reached.
Putting oil in a new oil filter for an oil change is a "feel good" step in the process. It's not necessary. For me, I do it every time. I feel better about doing it.
Yes, there is an oil film left on all the surfaces...however, if the oil filter remains on, oil pressure will build that much faster. Fact: some engines WILL knock when the oil filter is not pre-filled, while the same engine will remain quiet if the filler was pre-filled. Whether or not that makes any difference in the life of the engine I do not know, but for me..it just makes since.
Someone above, mentioned a "dry start" if you use a new filter or drain the filter and replace it.
Can't happen. Lack of an oil pressure reading for an idiot light does not mean lack of lubrication during the start. Your starter might not even be able to budge a dry engine around enough to get it started.
There's plenty of lubrication going on during the start process long before full pressure is ever reached.
Putting oil in a new oil filter for an oil change is a "feel good" step in the process. It's not necessary. For me, I do it every time. I feel better about doing it.
Yes, there is an oil film left on all the surfaces...however, if the oil filter remains on, oil pressure will build that much faster. Fact: some engines WILL knock when the oil filter is not pre-filled, while the same engine will remain quiet if the filler was pre-filled. Whether or not that makes any difference in the life of the engine I do not know, but for me..it just makes since.
Originally Posted By: DuckRyder
Of all the manufacturers that advise running the filter for more than one OCI, I'm not aware of any that advise removing it to drain. With a properly functioning ADBV it should be difficult to drain anyway right?
IMO if you're going to take it off, replace it, if you're going to run it for more than one OCI leave it in place. The potential for creating an issue far outweigh the potential benefit for removing it.
Why would th Mfgr's recommend draining an old filter? The benifits are small, and each vehicle is different so some make a big mess and some dont...this is Bitog and many will do things that add minimal value so they "feel good". Do you think your dealer or quick lube will pre fill an oil filter? Not in your life!
Of all the manufacturers that advise running the filter for more than one OCI, I'm not aware of any that advise removing it to drain. With a properly functioning ADBV it should be difficult to drain anyway right?
IMO if you're going to take it off, replace it, if you're going to run it for more than one OCI leave it in place. The potential for creating an issue far outweigh the potential benefit for removing it.
Why would th Mfgr's recommend draining an old filter? The benifits are small, and each vehicle is different so some make a big mess and some dont...this is Bitog and many will do things that add minimal value so they "feel good". Do you think your dealer or quick lube will pre fill an oil filter? Not in your life!
Originally Posted By: Bluestream
I always take it off and drain...never had a "seal" break in over 200 times...have you seen the size of the rubber gasket? How does it seal one minute then leak the next? Little effort involved to drain the old oil
The base gasket takes a set after the filter has been on for awhile and heat cycled. In other words, there isn't much "spring" left in the rubber. Look at how flattened out the base gasket is next the filter is removed. Therefore, if the filter is removed and put back on with the old flattened out seal, it's possible it won't seal correctly as there is much less compression of the gasket the next time it's tightened down.
And as others have said, if the filter is going to be removed and drained to be used again, then might as well just put a new filter on instead. Most run a filter twice to so they don't have to deal with the mess.
I always take it off and drain...never had a "seal" break in over 200 times...have you seen the size of the rubber gasket? How does it seal one minute then leak the next? Little effort involved to drain the old oil
The base gasket takes a set after the filter has been on for awhile and heat cycled. In other words, there isn't much "spring" left in the rubber. Look at how flattened out the base gasket is next the filter is removed. Therefore, if the filter is removed and put back on with the old flattened out seal, it's possible it won't seal correctly as there is much less compression of the gasket the next time it's tightened down.
And as others have said, if the filter is going to be removed and drained to be used again, then might as well just put a new filter on instead. Most run a filter twice to so they don't have to deal with the mess.
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