Changing filter every other OCI

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It's true that the old VW engines only lasted 80-90k but I don't think it was the lack of oil filtration that killed them. Being air cooled, they ran at more extreme and less uniform temperatures. They were also very underpowered and forced to run at full throttle for much of their life. I am sure the lack of oil filtration didn't offer any benefits but there are other factors to consider as well.

If oil filtration has a big impact on engine wear, wouldn't the use of bypass filters extend the life of the engine significantly? I don't know. Perhaps someone can offer some evidence to support this.
 
I change my oil filter every time I change my oil. I cant find the logic in putting an engine that costs thousands of dollars at risk for an oil filter that costs less than $10. I actually pay $3.27 for my Purolator Classics from Wal-Mart. But to each its own. I suggests that you veer to the side that makes sense, and not changing it is not making a lot of it.
 
Originally Posted By: Shy
I change my oil filter every time I change my oil. I cant find the logic in putting an engine that costs thousands of dollars at risk for an oil filter that costs less than $10. I actually pay $3.27 for my Purolator Classics from Wal-Mart. But to each its own. I suggests that you veer to the side that makes sense, and not changing it is not making a lot of it.


You can't find the logic because you use one of the cheapest filters on the market.

Who is recommending running a Purolator Classic multiple OCI's?

Filters that get ran 2+ OCI's are normally rated for 10k plus. Even more of them are wire backed.

You might want to try reading up on Purolator's quality within the last year or so too. Especially the Classic and Pureone lines.
 
Originally Posted By: dlundblad
Originally Posted By: Shy
I change my oil filter every time I change my oil. I cant find the logic in putting an engine that costs thousands of dollars at risk for an oil filter that costs less than $10. I actually pay $3.27 for my Purolator Classics from Wal-Mart. But to each its own. I suggests that you veer to the side that makes sense, and not changing it is not making a lot of it.


You can't find the logic because you use one of the cheapest filters on the market.

Who is recommending running a Purolator Classic multiple OCI's?


Who's recommending using a Purolator Classic for even one OCI?
eek.gif
 
Originally Posted By: ZeeOSix
Originally Posted By: dlundblad
Originally Posted By: Shy
I change my oil filter every time I change my oil. I cant find the logic in putting an engine that costs thousands of dollars at risk for an oil filter that costs less than $10. I actually pay $3.27 for my Purolator Classics from Wal-Mart. But to each its own. I suggests that you veer to the side that makes sense, and not changing it is not making a lot of it.


You can't find the logic because you use one of the cheapest filters on the market.

Who is recommending running a Purolator Classic multiple OCI's?


Who's recommending using a Purolator Classic for even one OCI?
eek.gif



Only your worst enemy.
 
Originally Posted By: jmsjags
If you are buying a premium oil filter like a Fram Ultra, Purolator Synthetic, Mobil 1, etc. and changing it every oil change, the bottom line is you are throwing away money. You do not need to be buying extended drain filters if you are not using them for their intended purposes.

I buy synthetic oil and Fram Ultras. I change the oil every 7,500 miles, and the filter every 15,000 miles. If there is residual oil left in the oil filter every other oil change then so what? The oil can go 15,000 miles anyway, and my oil filter will now be more efficient for the last 7,500 miles.

With a fumoto valve, I only have to get my hands dirty EVERY OTHER oil change. It's amazing, you should try it!
cheers3.gif



Great plan. However, mentioning Mobil 1 oil filters in the same category as Fram Ultras is wrong. As seen on the Fram website and observation, Ultras have depth filtering media far more effective than Mobil 1 oil filters do. Ultras are wire-backed, Mobil 1 filters no.
 
Originally Posted By: dlundblad
Originally Posted By: Arctic388
i'll stick to changing the filter every oil change.

just based on some non scientific research

https://www.youtube.com/playlist?list=PLPi_s5p45KGvZfDqHnY1lupx-HVUMkhqy



Are these your cars? Loaded with sludge after 1k of use??


yep, the sludged up one i bought at 211K miles and then started different things to clean sludge. its been fun.
 
Originally Posted By: Arctic388
Originally Posted By: dlundblad
Originally Posted By: Arctic388
i'll stick to changing the filter every oil change.

just based on some non scientific research

https://www.youtube.com/playlist?list=PLPi_s5p45KGvZfDqHnY1lupx-HVUMkhqy



Are these your cars? Loaded with sludge after 1k of use??


yep, the sludged up one i bought at 211K miles and then started different things to clean sludge. its been fun.


Ouch. It does sound like a fun tinkering task indeed. Id personally run an over-sized filter if possible.

Good idea not running multiple OCI's with this engine. Sludged engines should see short OCI's or at least short oil filter intervals.
 
Originally Posted By: dlundblad
Originally Posted By: Arctic388
Originally Posted By: dlundblad
Originally Posted By: Arctic388
i'll stick to changing the filter every oil change.

just based on some non scientific research

https://www.youtube.com/playlist?list=PLPi_s5p45KGvZfDqHnY1lupx-HVUMkhqy



Are these your cars? Loaded with sludge after 1k of use??


yep, the sludged up one i bought at 211K miles and then started different things to clean sludge. its been fun.


Ouch. It does sound like a fun tinkering task indeed. Id personally run an over-sized filter if possible.

Good idea not running multiple OCI's with this engine. Sludged engines should see short OCI's or at least short oil filter intervals.


it was fun to me just to see what the next filter looked like. unfortunately i only drive the Tahoe 1 day a week now so my OCI are really long now.
 
Regardless of brand or price. No oil filter should be ran twice. Thats my story and am sticking to it. But do what you want. Its your vehicle not mine.
 
Originally Posted By: dlundblad
Who is recommending running a Purolator Classic multiple OCI's?

I used Fram Extra Guard, Purolator Classic, STP, Pep Boys ... for 2 OCI's with dino at 7-9/6mo in my indestructible LS400 engine.
 
Originally Posted By: Shy
Regardless of brand or price. No oil filter should be ran twice. Thats my story and am sticking to it. But do what you want. Its your vehicle not mine.



Right.
You might want to explain your case to Honda. They state under no uncertain terms to run an oil filter for 2 intervals,in an age when the filters were as good.
Believe what you want. Belief doesn't require evidence does it.


I run re-badged tough guards for 20000 miles.
Yes miles. I dissect them when I change them and the rubber is still ploable and it's still well glued to the end caps. So well in fact I have to cut the media edges so I can stretch out the folds.
Stick to your story though.
 
Using the filter for two OCI's was very common in the early 1970's. I believe that my 72 Pontiac owner's manual stated that as well. I recall, vaguely because I was a little kid, commercials for oil filters talking about leaving a "quart of dirty oil" in the engine when you didn't change the filter. That was when oil filters were larger, of course. 8-{D>
 
Originally Posted By: car51
Well, after this 7 or 8k run I'll have 12,000~ on a FRAM Tough Guard 3614 from my 11' Focus. I'll cut it and post


Looking forward to seeing this car51.
smile.gif




_________________________
2012 Hyundai Elantra GLS, 1.8L
Quaker State Synthetic (QSUD) 5W-20
Hyundai OEM Oil Filter #26300-35503
Hastings Engine Air Filter #AF1511

2011 Ford Focus SE, 2.0L
Motorcraft Synthetic Blend 5W-20
Motorcraft Oil Filter #FL-910S
Motorcraft Engine Air Filter #FA-1890
 
Originally Posted By: Clevy
Filters are cheap. Yep

However the more miles they rack up the better they filter. So in reality you get better filtration which means it traps the smaller particulate that does the damage to an engine.
So by running a filter for 2 or more intervals you are doing your engine a favour because it keeps trapping smaller and smaller particulate.
There is a caviat. You've gotta have a clean engine. If there are any deposits at all they e gotta be cleaned up before running this kind of routine.
But if an engine has used syn at decent intervals or conventional for appropriate intervals the engine should be clean.
I run tough guards for 20000 miles on known clean engines. At the time of dissection there is always agglomerated particulate in the folds of the media but the flats are clear and every time I kick myself because I know it could have run longer.
So these 3000-5000 mile intervals are pointless. I know it's only a few bucks but why spend them if you don't have to. Especially if you are getting better filtration vs a new filter.


This is the best advice in this thread^^^^


...Two OCI per filter is best as the filter gets more efficient...Bob Winters proved that back in 2003 and he worked for Shaffer s. He actually ran his escort with no oil filter for 4,000 and they was no more wear metals than when he had the filter on...But I assume you have all read that thread many times. Pre 70's 2 OC per filter was standard until some marking company wanted to increase filter sales with the "why leave dirty oil in your engine stick"

When I re-use the filter I just screw it off and drain the old oil, than back it goes into service...This is total overkill, but im anal
 
Last edited:
Originally Posted By: Bluestream
Originally Posted By: Clevy
Filters are cheap. Yep

However the more miles they rack up the better they filter. So in reality you get better filtration which means it traps the smaller particulate that does the damage to an engine.
So by running a filter for 2 or more intervals you are doing your engine a favour because it keeps trapping smaller and smaller particulate.
There is a caviat. You've gotta have a clean engine. If there are any deposits at all they e gotta be cleaned up before running this kind of routine.
But if an engine has used syn at decent intervals or conventional for appropriate intervals the engine should be clean.
I run tough guards for 20000 miles on known clean engines. At the time of dissection there is always agglomerated particulate in the folds of the media but the flats are clear and every time I kick myself because I know it could have run longer.
So these 3000-5000 mile intervals are pointless. I know it's only a few bucks but why spend them if you don't have to. Especially if you are getting better filtration vs a new filter.


This is the best advice in this thread^^^^


...Two OCI per filter is best as the filter gets more efficient...Bob Winters proved that back in 2003 and he worked for Shaffer s. He actually ran his escort with no oil filter for 4,000 and they was no more wear metals than when he had the filter on...But I assume you have all read that thread many times. Pre 70's 2 OC per filter was standard until some marking company wanted to increase filter sales with the "why leave dirty oil in your engine stick"

When I re-use the filter I just screw it off and drain the old oil, than back it goes into service...This is total overkill, but im anal


I havent even heard of that experiment until now.

How can this be? Engines shed metal during an OCI.
 
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