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So I did an oil change but didn't change the filte #4109481 05/29/16 06:05 AM
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Tlhfirelion Offline OP
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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

Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109483 05/29/16 06:13 AM
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sciphi Offline
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Don't worry. That oil filter has enough capacity to go 20k miles in that 2.5 without issue.


2013 Toyota RAV4 XLE
2012 Chevrolet Cruze Eco
Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109484 05/29/16 06:13 AM
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doublebase Offline
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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.

Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109485 05/29/16 06:14 AM
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4WD Offline
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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.

Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109487 05/29/16 06:17 AM
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sciphi Offline
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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.


2013 Toyota RAV4 XLE
2012 Chevrolet Cruze Eco
Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109490 05/29/16 06:25 AM
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Kuato Offline
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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.

Last edited by Kuato; 05/29/16 06:26 AM.

Thick vs Thin test: 15k / 43k miles complete
Re: So I did an oil change but didn't change the filte [Re: 4WD] #4109515 05/29/16 07:00 AM
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Donald Online Content
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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.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: So I did an oil change but didn't change the filte [Re: Donald] #4109517 05/29/16 07:03 AM
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demarpaint Offline
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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.


God Bless Our Troops

Re: So I did an oil change but didn't change the filte [Re: Kuato] #4109522 05/29/16 07:07 AM
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4WD Offline
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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.

Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109523 05/29/16 07:07 AM
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Mr Nice Offline
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I do 20K filter changes, but that's with 3 oil changes.

This will not harm the engine reusing oil filter.

Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109530 05/29/16 07:13 AM
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Eddie Offline
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Should be no issue whatsoever. If you can't sleep nights because of this you can change it now. Ed


2014 CX5 Touring 2.5L :-)
Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109547 05/29/16 07:31 AM
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Pontual Offline
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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.

Re: So I did an oil change but didn't change the filte [Re: Kuato] #4109552 05/29/16 07:40 AM
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JC1 Offline
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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

Last edited by JC1; 05/29/16 07:40 AM.

2015 Grand Caravan SXT Plus 0w-20 Pennzoil Ultra/Fram Ultra Filter
1997 Honda Civic CX 5w-30 PPPP/Fram Ultra Filter
Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109560 05/29/16 07:48 AM
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I'd change it just to ease your mind or make the next oil change at 5-7k instead....

Re: So I did an oil change but didn't change the filte [Re: Tlhfirelion] #4109570 05/29/16 07:57 AM
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SatinSilver Offline
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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.

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