changing oil filter every other oil change

[spasm3]

Originally Posted By: lockguy


better oil and filter cost approx $35 plus tax assuming $25 for 5qt of oil and $10 for filter.

I get tropartic (same as motorcraft) on sale for $1.99 qt. I buy filters in bulk for 4 vehicles from rockauto which brings shipping down to almost nothing per filter. If i do the filter every other oci, that brings the cost down to $11 for a good oil change.




If you want to stay with that oil and filter i would still go 6500-7500. Go 7500 one time and pull a uoa. If the engine is staying warm/hot all day, you should be fine.

 

[lockguy]

Originally Posted By: spasm3
Originally Posted By: lockguy


better oil and filter cost approx $35 plus tax assuming $25 for 5qt of oil and $10 for filter.

I get tropartic (same as motorcraft) on sale for $1.99 qt. I buy filters in bulk for 4 vehicles from rockauto which brings shipping down to almost nothing per filter. If i do the filter every other oci, that brings the cost down to $11 for a good oil change.




If you want to stay with that oil and filter i would still go 6500-7500. Go 7500 one time and pull a uoa. If the engine is staying warm/hot all day, you should be fine.


I may just bump up oci to 6k and change filter every other time. i get jittery leaving pp in for more than 7k.

 

[rrounds]

I change my filter every other oil change and I put 15k miles on the filter. My Honda red lines at 8400 rpm's and it almost never sees anything under 3500 rpm's out on the street. Have over 100k miles on my S2000 and it runs great just like a Honda should.

ROD

 

[lockguy]

Originally Posted By: rrounds
I change my filter every other oil change and I put 15k miles on the filter. My Honda red lines at 8400 rpm's and it almost never sees anything under 3500 rpm's out on the street. Have over 100k miles on my S2000 and it runs great just like a Honda should.

ROD


using oem?

 

[rrounds]

No, I use Baldwin filters. Just a little bit larger filter.
http://s949.photobucket.com/user/rrounds/library/Oil Filters?sort=2&page=1

ROD

 

[InvalidUserID]

12k on a "budget" filter like an OCOD or Purolator Classic would be outside of my comfort area but on a premium filter? Fine.

I'm doing once a year changes on my Jeep with a Bosch D+ every other change. I expect the numbers to come back fine.

 

[waltywalt]

I just started using the ultra filter with qsud 5w30 . I change my oil every 3,750 miles due to the severe service. I was thinking of going 2 oci on the filter but if its truly a 15 k filter then I would really be able to leave the ultra on there for 3 oci. I was always a change the filter every oci guy but with what I read hear by jim allen im starting to think im wasting a good filter by changing it everytime.

 

[dnewton3]

Originally Posted By: DuckRyder
Did we not just do this?



No - we did not.

We have not yet had a completely redundant conversation about 2x FCIs on a Ford Transit.

Of course, we've covered at least 20 other various engines in the last year ...

So, if we are to have a discussion about the double-down concept on every single engine made, we've only just begun.

 

[waltywalt]

Well I just don't understand how Honda can say to go 2 changes with a oil filter if it wasn't okay . Does Honda have a different kinda oiling system in there vehicals.

 

[Clevy]

Originally Posted By: waltywalt
Well I just don't understand how Honda can say to go 2 changes with a oil filter if it wasn't okay . Does Honda have a different kinda oiling system in there vehicals.



It is ok to change the filter every second change. Think about it. Honda is legendary for reliability. They employ engineers that they hundreds of millions of dollars and that high priced talent has decided that if an oil filter meets their minimum spec its sufficient for 2 oil change intervals.

Or you can ask a forum of guys on the Internet and see what they think.

Listen. As particulate agglomerates the oil filters media traps it in its pores. These agglomerated particulate keep getting trapped in the pores,effectively making the pores smaller and smaller,which then allows the filter to trap smaller and smaller particulate.
So in truth running a filter longer actually traps more of those 1-10 micron sized particulate that causes the most wear,instead of a new filter which lets these particulate pass right through.
I've been running tough guards and puro classics for 2 intervals for many many years,and I've never had an engine issue,well not a lubrication issue anyways.
Really think about this. A new filter isn't as efficient as a used one. The efficiency rating increases as the filter traps particulate,so unless you've got visible sludge I say run er.
Like I've already said. Honda engineers,legendary reliability and they say run it for 2 intervals.
Are they on to something.

 

[DragRace]

Originally Posted By: Hyde244

You have two options:

Purchase quality $3 filters, such as Motorcraft or Puro Classic, and change every OCI. Or you purchase a higher end filter such as Fram Ultra or PureOne and go every two changes.

Personally, I like swapping everything during every oil change, as it is what is recommended. From a cost-benefit perspective, it is difficult to rationalize any monetary savings as I use a $3.50 Motorcraft filter every change. Time is trivial, as it only takes a matter of seconds to take off the filter.

 

[turtlevette]

Originally Posted By: Hyde244


You have two options:

Purchase quality $3 filters, such as Motorcraft or Puro Classic, and change every OCI. Or you purchase a higher end filter such as Fram Ultra or PureOne and go every two changes.



Or I could use a high end filter every oil change. Or I could use a high end filter 2 or 3 times during the length of an oil change.

When Mobil 1 first came out in the 80's, there was a philosophy to never change the oil. You'd change the filter every 3000 miles. The filter make up oil together with consumption top off assured the oil would always be fresh enough.

 

[demarpaint]

Originally Posted By: turtlevette
Originally Posted By: Hyde244


You have two options:

Purchase quality $3 filters, such as Motorcraft or Puro Classic, and change every OCI. Or you purchase a higher end filter such as Fram Ultra or PureOne and go every two changes.




Or I could use a high end filter every oil change. Or I could use a high end filter 2 or 3 times during the length of an oil change.

When Mobil 1 first came out in the 80's, there was a philosophy to never change the oil. You'd change the filter every 3000 miles. The filter make up oil together with consumption top off assured the oil would always be fresh enough.





I remember that, a good friend owned a Mobil gas station and replaced a few engines because of people doing that. One of which was a 1980 Caprice Classic wagon he used to tow his race car. The Mobil rep told him to change the oil every 25,000 miles, and the filters every 5K miles. My friend said why not and tried it. I ended up buying the car soon after the engine rebuild he did. It had 350 4 bolt main, ported polished, mild cam, Edelbrock mainfold, headers into a dual exhaust, nice carb, etc. He also redid the transmission. It was one nice riding fast wagon, I had for several years before I sold it. I ran it on Mobil 1 also but I changed the oil and filter like you were was supposed too.

 

[Sayjac]

Originally Posted By: turtlevette
Originally Posted By: Hyde244


You have two options:

Purchase quality $3 filters, such as Motorcraft or Puro Classic, and change every OCI. Or you purchase a higher end filter such as Fram Ultra or PureOne and go every two changes.



Or I could use a high end filter every oil change.

Sure, if the oci/fci is 10k+ to 15k miles. Otherwise with shorter oci's might as well use another quality silicone adbv filter like P1, Wix/Napa Gold or Tough Guard etc. for less cost. That is unless cost benefit (roi/dnewton) means nothing to you.

Quote:
Or I could use a high end filter 2 or 3 times during the length of an oil change.

Why. What would be the significant benefit to the engine with that practice. Can't think of any, never seen any scientific data to support such a practice. Seems like a waste of money to me.

Quote:
When Mobil 1 first came out in the 80's, there was a philosophy to never change the oil. You'd change the filter every 3000 miles. The filter make up oil together with consumption top off assured the oil would always be fresh enough.

The last time I heard similar advice was when Castrol Edge first came out with it's advertised to 15k mi. change interval. I heard several Walmart TLE employees telling customers (including me) similar, change the filter only at 7500 miles. Didn't buy it (literally too) then, don't buy it now. Just use a quality filter and run it the complete oci. My .02

 

[datech]

Clik and clak car guys on the radio once claimed that changing the filter accelerated engine wear because of the few seconds of dry running when first started after the change. I guess you might be able to mitigate that (depending on the filter type, location, and orientation ) by filling the filter with clean oil before you start up, or cranking the engine a bit before allowing it to start.

In my experience, with my new car that uses a simple element so I can see after each change the result, oil filters don't really do much. I never see anything in them clogging or whatever even after 10k miles.

It might depend on the engine and circumstances, and without a filter at all an engine might risk damage in case of some kind of massive contamination so manufacturers don't want to leave them out.

Computers used to have air filters in the CRTS but they started leaving them out because all they did was get clogged which blocked airflow, while letting the dust run thru didn't really hurt much. And there's less maintainance to get neglected.

I have had cars that I did OCI of 3-5k and skipped the filter. They didn't have any catastrophic failures. The filters held less than a pint of old oil so I guess it didn't matter much in the big picture.

 

[Garak]

Originally Posted By: datech
Clik and clak car guys on the radio once claimed that changing the filter accelerated engine wear because of the few seconds of dry running when first started after the change.

That's one of these chestnuts that's been trotted out for decades with zero evidence to back it up. Sure, it makes sense and I understand the point. However, how many miles does it take off the life of an engine?

It's the same as complaints that prefilling a filter are using more contaminated oil than how it would be after filtration. Okay, understandable. But again, how many miles does it take off the life of an engine? Which way is better?

 

[turtlevette]

Do you guys think oil pressure is instantaneous? Is the last thing on the oiling loop going to see pressure within 1ms of startup. I think not.

Every time you start, something in the engine goes without pressure for a fraction of a second to multiple seconds depending on the viscosity.

 

[DragRace]

Originally Posted By: turtlevette
Do you guys think oil pressure is instantaneous? Is the last thing on the oiling loop going to see pressure within 1ms of startup. I think not.

Every time you start, something in the engine goes without pressure for a fraction of a second to multiple seconds depending on the viscosity.




*Fact*

It's really too bad more people dont have the opportunity to take some auto mechanics classes.
Alot of assumptions and guessing would'n't be happening so often on this forum.

 

[Clevy]

Originally Posted By: turtlevette
Do you guys think oil pressure is instantaneous? Is the last thing on the oiling loop going to see pressure within 1ms of startup. I think not.

Every time you start, something in the engine goes without pressure for a fraction of a second to multiple seconds depending on the viscosity.





Its close enough to instantaneous.

I can truly say I've never worn out an engine. Ever. Something else breaks and its more costly than the car is worth then I replace them.

So my way has accumulated 1/2 a million miles on a separate 318 mopars,and every vehicle I own ends up with astronomical mileages so I'll just stick with doing things my way.
It's that whole ain't broke thing.

 

[turtlevette]

Originally Posted By: DragRace
Originally Posted By: turtlevette
Do you guys think oil pressure is instantaneous? Is the last thing on the oiling loop going to see pressure within 1ms of startup. I think not.

Every time you start, something in the engine goes without pressure for a fraction of a second to multiple seconds depending on the viscosity.




*Fact*

It's really too bad more people dont have the opportunity to take some auto mechanics classes.
Alot of assumptions and guessing would'n't be happening so often on this forum.



I kinda feel bad. It's like telling them there's no Santa.


With regard to frequent filter changes. Someone chastised me about cost benefit.

I let a K&N go 16K and it felt heavy after letting it drain. Like it was plugged up with carbon. I'll never go that long on an oil change again and will probably change the filter at 1/2 the OCI. The filter replacement oil will also help boost the oil with fresh.

Engines are so very expensive these days and don't forget the labor to swap them out. I'd say 7 to 15K average. The cost benefit on a $13 filter is a no brainer for me. I'll watch for sales and stock up. I have a big stash of top of the line oils at $3 so it just doesn't make sense to extend oil changes or filter changes.