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So I did an oil change but didn't change the filte

Posted By: Tlhfirelion

So I did an oil change but didn't change the filte - 05/29/16 12:05 PM

Long story short but I changed my vehicles oil while I was out of town at a relatives house. It's a 2014 Toyota Camry four-cylinder, and I use mobile one 15,000 mile full synthetic but I change it to 10,000 miles. Like a bonehead I completely forgot to bring my wrench to change the oil filter housing and there isn't one at the only auto parts store near me for this fancy pants Toyota filter housing. The filter that I always use on this car is the Fram ultra synthetic. The car has 40,000 miles on it. I last changed the oil at 30,000 miles and roughly 90% of my driving is highway driving. So I made the executive decision to just change the oil and leave the filter and I'll change it out with the next oil change at 50,000 miles.

I've never done this before with any vehicle where I only change the fluid and leave the filter so I don't know if what I've done was extremely foolish or not that big of a deal.

As always your feedback is greatly appreciated
Posted By: sciphi

Re: So I did an oil change but didn't change the filte - 05/29/16 12:13 PM

Don't worry. That oil filter has enough capacity to go 20k miles in that 2.5 without issue.
Posted By: doublebase

Re: So I did an oil change but didn't change the filte - 05/29/16 12:13 PM

Think of it like taking a shower and then jumping back into your dirty underwear.

I'd change that filter, it already has 10k miles on it and now you're planning on going another 10k? You're not going to lose much oil if you change it out, so it's not like you'd be wasting anything. Some people claim that the filter is more important than the oil. Right now your clean oil is running through a dirty filter, if that filter gets clogged, won't it open a bypass valve and just let all the contamination flow right into your engine? I mean I suppose you can risk it and everything will be fine, but all you have to do when you get home is change the filter.
Posted By: 4WD

Re: So I did an oil change but didn't change the filte - 05/29/16 12:14 PM

20k filter run ? My fear is if XG filter stays in bypass - you don't filter that Mobil-1.
It can still be changed - you only picked up a small amount of old oil.
Posted By: sciphi

Re: So I did an oil change but didn't change the filte - 05/29/16 12:17 PM

Our 2009 Honda recommended changing the filter every other oil change. I never did, but knew that it was just fine if I ran short on time and couldn't get to the filter.

Running a premium filter on an engine that's pretty easy on oil should be just fine for letting it go a second oil change. I'd be more hesitant if it was a bargain-basement filter.
Posted By: Kuato

Re: So I did an oil change but didn't change the filte - 05/29/16 12:25 PM

Fram Ultra? No worries it can go 15k without thinking twice.

Also, Shannow posted a study recently which said that leaving your filter on after changing oil has some benefit in filtration.

Put these two together and there is no concern; plus your wrench is waiting for you at home.
Posted By: Donald

Re: So I did an oil change but didn't change the filte - 05/29/16 01:00 PM

Originally Posted By: 4WD
20k filter run ? My fear is if XG filter stays in bypass - you don't filter that Mobil-1.
It can still be changed - you only picked up a small amount of old oil.


+1 - this. Change the filter when you are home.
Posted By: demarpaint

Re: So I did an oil change but didn't change the filte - 05/29/16 01:03 PM

Originally Posted By: Donald
Originally Posted By: 4WD
20k filter run ? My fear is if XG filter stays in bypass - you don't filter that Mobil-1.
It can still be changed - you only picked up a small amount of old oil.


+1 - this. Change the filter when you are home.


That will work. No worries.
Posted By: 4WD

Re: So I did an oil change but didn't change the filte - 05/29/16 01:07 PM

That is 20k. I don't doubt a dirty filter will filter well - seems they start to work like the DE filters - my pool filters clean well dirty - however at twice the pressure and any higher they collapse. ($400 please). That big "can" has a guage - unfortunately an auto filter normally does not - just a bypass with no read back for the driver to know.
Much on this site is about "peace of mind" having a cost - this is one of those where different folks have an individual comfort zone.
Posted By: Mr Nice

Re: So I did an oil change but didn't change the filte - 05/29/16 01:07 PM

I do 20K filter changes, but that's with 3 oil changes.

This will not harm the engine reusing oil filter.
Posted By: Eddie

Re: So I did an oil change but didn't change the filte - 05/29/16 01:13 PM

Should be no issue whatsoever. If you can't sleep nights because of this you can change it now. Ed
Posted By: Pontual

Re: So I did an oil change but didn't change the filte - 05/29/16 01:31 PM

Your 2 years engine has 40 of highway miles. It may be clean, so clogging the filter in 20K isn't probable. That if you regular in syn oil. Keep it going if you will.
Posted By: JC1

Re: So I did an oil change but didn't change the filte - 05/29/16 01:40 PM

Originally Posted By: Kuato
Fram Ultra? No worries it can go 15k without thinking twice.

Also, Shannow posted a study recently which said that leaving your filter on after changing oil has some benefit in filtration.

Put these two together and there is no concern; plus your wrench is waiting for you at home.


+1
Posted By: AirgunSavant

Re: So I did an oil change but didn't change the filte - 05/29/16 01:48 PM

I'd change it just to ease your mind or make the next oil change at 5-7k instead....
Posted By: SatinSilver

Re: So I did an oil change but didn't change the filte - 05/29/16 01:57 PM

Easy peasy, leave it in. Hwy miles are easy on the engine and oil filter. Plus you have a 15k filter on there already. If a $4 oem filter can handle a 10k run with ease then the Ultra can handle it as well. Plus the filter becomes more efficient as it loads up a bit. I was thinking of doing the same thing an Ultra on purpose. Esp after the stellar UOA I had done on the Camry.
Posted By: Moutainman31282

Re: So I did an oil change but didn't change the filte - 05/29/16 01:57 PM

Personally I'd never use a fram filter. But to Andrew your question I would way rather change the filter and not the oil as change the oil and not the filter. I believe you should take a few min and just swap the filter out. Rather than risk the filter collapse and lose oil pressure or worse stop up the oilers with the paper in the filter. Better to be safe than sorry.
Posted By: Quattro Pete

Re: So I did an oil change but didn't change the filte - 05/29/16 01:59 PM

What prevents you from changing the filter now that you are back home?
Posted By: DuckRyder

Re: So I did an oil change but didn't change the filte - 05/29/16 02:02 PM

It will be fine...
Posted By: 69GTX

Re: So I did an oil change but didn't change the filte - 05/29/16 02:14 PM

Originally Posted By: Kuato
Fram Ultra? No worries it can go 15k without thinking twice.

Also, Shannow posted a study recently which said that leaving your filter on after changing oil has some benefit in filtration.

Put these two together and there is no concern; plus your wrench is waiting for you at home.



Yeah, change it (when you get back home) just like you originally planned. The filter was good before the OCI, and will be fine for a short while longer. Do what you planned and keep peace of mind.
Posted By: MinamiKotaro

Re: So I did an oil change but didn't change the filte - 05/29/16 02:16 PM

Oh no, the world will split in half!

You won't clog it up in 20,000 miles. They're supposed to hold, what, ten grams or more? That's a LOT of crud. A healthy engine won't put out near that much in 20,000 miles.
Posted By: sciphi

Re: So I did an oil change but didn't change the filte - 05/29/16 02:27 PM

Funny how the old-timers are recommending to leave it in, while the newer folks are having a collective freakout.

Leave it be. Especially a quality cartridge filter like a Fram Ultra will be fine.
Posted By: Xrs2zz

Re: So I did an oil change but didn't change the filte - 05/29/16 02:35 PM

I know my application is different and an older vehicle, but I've already changed my oil and left the Ultra on.

I don't see anything wrong with leaving it in.
Posted By: FordCapriDriver

Re: So I did an oil change but didn't change the filte - 05/29/16 02:49 PM

i have always done the oil every year and the filter evey other year
Posted By: BrocLuno

Re: So I did an oil change but didn't change the filte - 05/29/16 02:50 PM

There is a whole thread over in technical papers discussing the fact (proven) that oil builds up unique AW properties as it runs in. That is unique to that engine because of the way the engine is cooled, OP temp, local hot spots, etc. The bottom line on this professional paper is to leave 10% old oil in at change.

Shannow and I have come to the conclusion that the best way to do this is to leave the filter on past the change and let that amount of used oil circulate with the new stuff until it starts to build it's own reaction chemistry. Say we leave them on for two weeks and then change...

You are doing just that. You are getting best of heat cycled oil chemistry, somewhat better filtering as the media has used up the big pores and is now doing smaller stuff, and you'll be right on for a filter change when you get back smile

All good. Just slide in there and change it at your convenience smile
Posted By: Jetronic

Re: So I did an oil change but didn't change the filte - 05/29/16 02:52 PM

And consider doing it like this from now on smile
Posted By: Whimsey

Re: So I did an oil change but didn't change the filte - 05/29/16 03:20 PM

Originally Posted By: Pontual
Your 2 years engine has 40 of highway miles. It may be clean, so clogging the filter in 20K isn't probable. That if you regular in syn oil. Keep it going if you will.


+1 (other than the English, but then again I can't speak Portuguese grin2).

Whimsey
Posted By: CT8

Re: So I did an oil change but didn't change the filte - 05/29/16 03:32 PM

change the filter.
Posted By: CT8

Re: So I did an oil change but didn't change the filte - 05/29/16 03:35 PM

Originally Posted By: Pontual
Your 2 years engine has 40 of highway miles. It may be clean, so clogging the filter in 20K isn't probable. That if you regular in syn oil. Keep it going if you will.
What if the air filter or intake plumbing allows dirt to enter the engine?
Posted By: locomaster1969

Re: So I did an oil change but didn't change the filte - 05/29/16 03:39 PM

I doubt that you will have any problems using the same oil filter. That filter will hold lots of "stuff". Highway miles are the easiest on any vehicle.
Posted By: doublebase

Re: So I did an oil change but didn't change the filte - 05/29/16 04:30 PM

Originally Posted By: locomaster1969
I doubt that you will have any problems using the same oil filter. That filter will hold lots of "stuff". Highway miles are the easiest on any vehicle.


I always hear this...highway miles are the easiest on any vehicle. But isn't there some things to consider with highway mileage? Like engine vacuum - I've heard due to the throttle plates being close to closed, oil burning can take place due to the oil being pulled through the PCV. And if you're doing 80 miles a day on the highway - at a consistent speed - isn't your engine essentially idling at the same rpm's for long stretches of time without a lot of variation? I've read that's bad too. I understand engine temp is ideal...or that your cooling system isn't working hard, but that's the cooling system. And I understand that the suspension and brake system have it easy on the highway, but again, it's not the oil system. The crankshaft isn't varying speed for long stretches, that good? Yes the water will burn off and prevent sludge and acid, but wouldn't that happen with any sort of prolonged driving? I guess I don't understand how highway driving is easy on oil. I'm probably missing something.
Posted By: Donald

Re: So I did an oil change but didn't change the filte - 05/29/16 06:39 PM

Originally Posted By: Mr Nice
I do 20K filter changes, but that's with 3 oil changes.

This will not harm the engine reusing oil filter.


Or you have not noticed any harm to your engine YET!!
Posted By: kschachn

Re: So I did an oil change but didn't change the filte - 05/29/16 06:46 PM

Originally Posted By: Donald
Originally Posted By: Mr Nice
I do 20K filter changes, but that's with 3 oil changes.

This will not harm the engine reusing oil filter.

Or you have not noticed any harm to your engine YET!!


What kind of harm would he notice?
Posted By: BigD1

Re: So I did an oil change but didn't change the filte - 05/29/16 07:02 PM

Change the filter, and don't freak around with a car that is worth a lot of money. Been reading that filters get more efficient as they clog, but we have seen in the past that Honda and Toyota favored flow, so I don't think it matters.

Was helping a lady at Walmart about a month ago to find a filter for her 2014/2015 Camry four cylinder. Can't remember what I pulled off the shelf, but it was Fram something. Made in China cartridge filter. Thought it was funny because she asked me where it was made. She said she would go to the Toyota dealer and buy one like she did last time.
Posted By: Tlhfirelion

Re: So I did an oil change but didn't change the filte - 05/29/16 07:34 PM

man, lots of great replies, and on a Sunday no less! Thank you very much to all who contributed. I had basically decided before I posted that I would change the filter when I get home and not lose any sleep. I'm going on another long trip in a couple weeks so I'll get it done before then. I doubt it would be an issue if I left it but I start getting slightly twitchy just knowing it's sitting there mocking me, unchanged and unashamed. lol

This is a great forum, thanks for everyones replies and feedback. Maybe if I used a better filter like a wix this wouldn't be a problem. *oh nooooo.....he went there* :-P
Posted By: Pontual

Re: So I did an oil change but didn't change the filte - 05/29/16 08:27 PM

Originally Posted By: CT8
Originally Posted By: Pontual
Your 2 years engine has 40 of highway miles. It may be clean, so clogging the filter in 20K isn't probable. That if you regular in syn oil. Keep it going if you will.
What if the air filter or intake plumbing allows dirt to enter the engine?


In a 2014 plumbing? Hardly.
Posted By: Pontual

Re: So I did an oil change but didn't change the filte - 05/29/16 08:33 PM

Originally Posted By: Tlhfirelion
man, lots of great replies, and on a Sunday no less! Thank you very much to all who contributed. I had basically decided before I posted that I would change the filter when I get home and not lose any sleep. I'm going on another long trip in a couple weeks so I'll get it done before then. I doubt it would be an issue if I left it but I start getting slightly twitchy just knowing it's sitting there mocking me, unchanged and unashamed. lol

This is a great forum, thanks for everyones replies and feedback. Maybe if I used a better filter like a wix this wouldn't be a problem. *oh nooooo.....he went there* :-P


Do us a favor back, then: cut it open a post the pictures, including the media stretched in the bench. Would you? That's bitoger, man!
Posted By: Pontual

Re: So I did an oil change but didn't change the filte - 05/29/16 08:37 PM

Originally Posted By: Whimsey
Originally Posted By: Pontual
Your 2 years engine has 40 of highway miles. It may be clean, so clogging the filter in 20K isn't probable. That if you regular in syn oil. Keep it going if you will.


+1 (other than the English, but then again I can't speak Portuguese grin2).

Whimsey
thumbsup thumbsup
Posted By: sm00thpapa

Re: So I did an oil change but didn't change the filte - 05/29/16 08:47 PM

Change it now if you want no biggie. Just may have to add some oil.
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