oil filter life?

[HTSS_TR]

Originally Posted By: FL_Rob
Originally Posted By: spasm3

Exactly, most of us like to change the air filter 2 -3 days before and oil change. The theory is that when you change the air filter you invariably get some dust dirt in the engine and that gets dumped 3 days later so none is in the new oil.

What?..Ya, If you live in the desert. I dont recall anyone here stating that they change A/F 2-3 days before the oil change( and I will check the filter section here in a minute to verify).If anything they get more efficient with time and there's no evidence to say that an A/F will let significant sand or dirt in enough to change it every 3k or 6k even if it's at 50% or 80% capacity.It's good enough to just follow the manufacturers specs on this for the avg urban/suburban drivers.We change the oil because it breaks down, gets contaminated, or the add-pack is used up (need UOA to confirm of course).

I think spasm3 means: if air filter is needed to be changed (after xx,xxx miles or years), then it is better to change it just before oil change, so that if some dust get in the engine it will get dumped few days later with the old oil and none is in the new oil. I think it is a good idea. He didn't mean to say change air filter with every oil change.

 

[pzev]

Originally Posted By: Cristobal
Welcome to BITOG.

Depends on your filter and the dust in the area where you drive. The filter can only absorb so much.

My mechanic tell me where I live even the Fram Orange Can will go 7500 but MUST be changed by then. But in a dusty area he says don't trust it past 2000 miles.

Some extended life filters will go 12,000 miles or more if you are in a spot with little dust. Amsoil, Mobil, and some other makers turn out pretty good long life filters.

If my oil looks clean, and the filter gets hot, I know that oil is passing through and still getting filtered.

What is your driving environment like? If you are around dusty construction sites or a wet-weather place with little dust, these all have a bearing.



I don't care if you are driving in the sahara, your air filter is going to catch the vast majority of the dust you are likely to encounter. What remains will likely be combusted and expelled out the back of the motor. If there were any large quantities of dust making it into the oil, then engines would be dying left and right and cylinder bores would be sand blasted to nothing in no time.

 

[FL_Rob]

Originally Posted By: HTSS_TR
Originally Posted By: FL_Rob
Originally Posted By: spasm3

Exactly, most of us like to change the air filter 2 -3 days before and oil change. The theory is that when you change the air filter you invariably get some dust dirt in the engine and that gets dumped 3 days later so none is in the new oil.

What?..Ya, If you live in the desert. I dont recall anyone here stating that they change A/F 2-3 days before the oil change( and I will check the filter section here in a minute to verify).If anything they get more efficient with time and there's no evidence to say that an A/F will let significant sand or dirt in enough to change it every 3k or 6k even if it's at 50% or 80% capacity.It's good enough to just follow the manufacturers specs on this for the avg urban/suburban drivers.We change the oil because it breaks down, gets contaminated, or the add-pack is used up (need UOA to confirm of course).

I think spasm3 means: if air filter is needed to be changed (after xx,xxx miles or years), then it is better to change it just before oil change, so that if some dust get in the engine it will get dumped few days later with the old oil and none is in the new oil. I think it is a good idea. He didn't mean to say change air filter with every oil change.

Ok then, I misinterpreted ,Sorry for the mixup spasm3.

 

[pidster]

Originally Posted By: RamFan
The more important question in my opinion is why are you only doing 3,000 mile OCIs?
Originally Posted By: cathy
90% city 5 mile-10mile trips.




a bit conservative perhaps, but this usage pattern is where a short OCI is the thing to do. 5mi trips? I'd use the cheapest dino available and change every 3-4k, unless there is a 30min plus highway trip at least weekly. moisture and fuel dilution will be through the roof with that type of duty. keep those OCI's short!

 

[VRAY]

Any name brand filter will go 7500 miles but I would change both oil and filter at 5000 and be done with it.Filters are cheap and I think changing both at the same time is a good habit to follow. There is alot of overkill on this site so please use common sense and dont listen to the extreme elements that lurk around here.

 

[TomYoung]

Originally Posted By: spasm3
Originally Posted By: cathy
I live in Los Angeles. Not sure if this is "dusty." I do not live in a farming area, but have to wash car every few weeks. How does dust enter the oil supply? from the air "filter"?


Exactly, most of us like to change the air filter 2 -3 days before and oil change. The theory is that when you change the air filter you invariably get some dust dirt in the engine and that gets dumped 3 days later so none is in the new oil.


Nobody talks about changing the air filter two or three days before the oil. You made that up, and I think you are going to have to go a little farther to prove that it is a good idea!

 

[ZeeOSix]

Originally Posted By: cathy
I do 3000 OCI because I do 90% city driving (long idling), have sludge prone 4cylinder so I probably have moisture/acids in the oil. I am now going to extend it.


If you are never planning on going beyond a 3000 mile OCI with your driving schedule, I'd run Mobil 5000 dino with a Purolator Classic filter.

 

[johnachak]

Yes you can change the oil and use the same filter for your 2nd OCI. I always remove the old filter after the first OCI - empty the oil contents and reinstall it for another 3-4K OCI.

I recommend Purolator or Bosch filters. Best bang for the dollar.

I don't get the logic. If I have to pull the filter, drain it reinstall it then wipe it down, just put a new one on. Why chance it with an old one?

 

[steve20]

^^^^^
This--does not make sense?????
first you reinstall it, then say why chance using a used filter?

 

[ZeeOSix]

Originally Posted By: steve20
^^^^^
This--does not make sense?????
first you reinstall it, then say why chance using a used filter?


He was trying to quote Triple_Se7en.

Originally Posted By: Triple_Se7en
Originally Posted By: cathy
So if I change my oil 2x every 3000 miles, I can use the same oil filter? why not?


Yes you can change the oil and use the same filter for your 2nd OCI. I always remove the old filter after the first OCI - empty the oil contents and reinstall it for another 3-4K OCI.

I recommend Purolator or Bosch filters. Best bang for the dollar.

 

[spasm3]

Originally Posted By: TomYoung
Originally Posted By: spasm3
Originally Posted By: cathy
I live in Los Angeles. Not sure if this is "dusty." I do not live in a farming area, but have to wash car every few weeks. How does dust enter the oil supply? from the air "filter"?


Exactly, most of us like to change the air filter 2 -3 days before and oil change. The theory is that when you change the air filter you invariably get some dust dirt in the engine and that gets dumped 3 days later so none is in the new oil.


Nobody talks about changing the air filter two or three days before the oil. You made that up, and I think you are going to have to go a little farther to prove that it is a good idea!


https://bobistheoilguy.com/forums/threads/oc-and-engine-air-filter-change-tomorrow.148024/
https://bobistheoilguy.com/forums/threads/oc-and-engine-air-filter-change-tomorrow.148024/
11th post on that page.

There's 2 posts about it plus mine. I don't need to prove an idea, i did not state it as a fact. Yes I should have said some of us like to change the air filter, rather that most of us. My mistake.

 

[johnachak]

Originally Posted By: ZeeOSix
Originally Posted By: steve20
^^^^^
This--does not make sense?????
first you reinstall it, then say why chance using a used filter?


He was trying to quote Triple_Se7en.

Originally Posted By: Triple_Se7en
Originally Posted By: cathy
So if I change my oil 2x every 3000 miles, I can use the same oil filter? why not?



Thank you, that's it exactly... ill figure it out yet...

Yes you can change the oil and use the same filter for your 2nd OCI. I always remove the old filter after the first OCI - empty the oil contents and reinstall it for another 3-4K OCI.

I recommend Purolator or Bosch filters. Best bang for the dollar.

 

[johnachak]

Originally Posted By: johnachak

^^^^^
This--does not make sense?????
first you reinstall it, then say why chance using a used filter?


He was trying to quote Triple_Se7en.

So if I change my oil 2x every 3000 miles, I can use the same oil filter? why not?


Thank you, that's it exactly... ill figure it out yet...

 

[Cristobal]

I think if you took, say a Mobil One Extended Performance filter it will most likely last two REGULAR oil change intervals. Filters like this made by Mobil, Amsoil, and other companies have extra dust/dirt capacities. So if you change, say, your dino oil every 6,000 miles the filter should last for 12,000, and you can thus use it twice.

On the other hand a filter will eventually fill with debris; that is what it is for. So if I had a crankcase of some top synthetic oil like Amsoil or Redline, and a very botton line basic filter like the Fram Orange Can one might run that oil for 12,000 miles but change the filter at 4,000 and 8,000, then at 12,000 with the oil itself.

Always visually check your oil to see if it is still clear. As long as it is clear the filter is catching particles. I have had the Fram I mentioned (the "Orange Can of Death") last longer than 4,000 miles but I inspect my oil for clarity about every third day, and usually every other day. Once the oil starts to get darker rapidly I change it and the filter fast.

 

[car54]

I love all the random suggestions to try another brand or oil or filter. When using a pureone filter, why would anyone recommend switching to FRAM? When using Mobil1, why recommend a dino oil?

I would say that given your driving habits, vehicle make, and climate where you live, using a synthetic oil and a premium filter is the best thing you can do. Your idea of letting the filter go for two oil changes is nothing new and will work just fine.

Your maintenance habits will leave you with an elderly car and a pristine engine in excellent shape.

If this was my car, I would switch to 5K on the oil and 10K on the filters, just to keep things simple for my brain.

 

[fdcg27]

Cathy, if I understand you correctly, you would like to use dino on 3K changes, and use the same filter over a 6K interval.
Any filter, be it orange, white, blue, black or golden should be okay for 6K.
There is really no need to use a premium filter for 6K miles, although you could.
If you want to use a premium filter, check out the rebate on the Bosch D+, and combine it with an AAP discount code.
If you want to try a syn oil, VR-1 10W-30 is free after rebate.
If your car has already reached 150K, and you have no problems, I'd say that whatever you've been doing has worked pretty well.
Do you have sludge now?
It might be worth lifting the valve cover to check.
If the upper cylinder head still looks pretty clean, varnish not withstanding, I'd say just continue what you've always done.
We sometimes over-think oil and filter.
If something has worked for you and your engine, why change?

 

[insomnia]

I basically have the same car as yours. I'll use a Purolator PureOne filter for 2 oil changes and change my oil every 3000miles with the cheapest dino oil I could find. I'm pretty sure either Purolator filters (classic or pureone) can easily last 6000 miles.

 

[steve20]

"""...but I inspect my oil for clarity about every third day, and usually every other day. Once the oil starts to get darker rapidly I change it and the filter fast. """


I wonder what the neighbors are thinking? Never mind, I know what they are thinking