Thoughts on only changing oil filter every other oil change
- Thread starter rav
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Just like many opinions here, neither side will sway the other. I tend to lean towards common sense.
Have you ever cut them open?
That would be good for the environment and good for your wallet.
But the old oil that remains in the filter would be going the full 10k OCI.
Also, so many oil filters have been cheapened by their manufacturer so running an oil filter to 10k miles increases the chance of something catastrophic happening (tears of the media, excess glue dislodging, etc), that it would be safer to change the filter at 5k miles.
If you are using a top of the line filter a change every 5,000 miles is a money flush. JMHO!
No.
This is the filter:
https://www.fram.com/fram-extra-guard-oil-filter-spin-on-ph3387a
Height (Inch) 3.359
Outside Diameter (Inch) 2.984
I'm fortunate enough to have a front row seat to some of the amazing progress in filter media advancement by nature of the job I do. Now I work primarily with diesel fuel filters, but the media and such a essentially the same for oil, just slightly coarser.
ON media advancements alone, the same fuel filters that used to limp to 500 hours of service are now making it to 1250-1500 hours and beyond-- in the exact same cans. And they do this with no decrease in filter efficiency.
On the lube side, our T4 spin on filters use a nominally 20 micron media vs the 30 micron of the T2 and earlier lube filter. This, despite calls for ever-longer filter service intervals. The advancements in media make it possible.
Modern nanofiber media does not lose efficiency over time like prior generations of media can, so they filter as well as new even when nearing the end of life.
In other words, the filter isn't used up until its in bypass for anything but the coldest start.
ON media advancements alone, the same fuel filters that used to limp to 500 hours of service are now making it to 1250-1500 hours and beyond-- in the exact same cans. And they do this with no decrease in filter efficiency.
On the lube side, our T4 spin on filters use a nominally 20 micron media vs the 30 micron of the T2 and earlier lube filter. This, despite calls for ever-longer filter service intervals. The advancements in media make it possible.
Modern nanofiber media does not lose efficiency over time like prior generations of media can, so they filter as well as new even when nearing the end of life.
In other words, the filter isn't used up until its in bypass for anything but the coldest start.
If I were to try to leave an oil filter in/on for 2 OCIs, it would eat at my psychologically and I would cave and change it during the 2nd OCI. I just couldn't do it, regardless of what the data are.
Throw all caution to the wind and change filter every 5k and oil every 10k just to be different. 
I prefer to not add the old oil I'm getting rid of to the new stuff I just added even though there is probably that much left with the Fumoto or Valvomax anyway. Why add more.
As stated, I'm under there, probably had to remove skid plates so might as well do the filter also.
I prefer to not add the old oil I'm getting rid of to the new stuff I just added even though there is probably that much left with the Fumoto or Valvomax anyway. Why add more.
As stated, I'm under there, probably had to remove skid plates so might as well do the filter also.
I think that some vehicles the filter is tough to get to.......or at least it is not terribly easy. My LX570 has I think 8 bolts to remove a large steel skid plate, then the filter. I have thought about running a 10k on the filter, and 5k oil changes.
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Deere?
The big Red C. I'm a fuel system engineer.
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Ahhhh, then we now have two people from Cummins (though I guess Fleetguard is now a majority owned subsidiary since the spin-off). @NashNative works at Fleetguard.
Yes, Fleetguard and Donaldson are playing in a very different sandbox from First Brands and Mann-Hummel
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Fairly certain the Heavy Duty and Industrial sector which often these areas are run by very technical people which can probably see though the typical marketing BS that both Donaldson & Fleetguard sales and contracts would have to be handled by a sales engineer.
Cutting corners in this part of the market can mean a permanent loss of business from that particular customer if they don't get what they want. How do I know? I see it all the time. Even our company loses business if we can't meet a customer's specifications or demands. A minor sudden change of product dimensions and performance without approval from the customer will instantly spark complaints and recalls. Unfortunately the typical MBA doesn't see this consequence until they're at risk at loosing their job.
This also aligns why I see Toyota TRD dropping Champion Laboratories which formerly supplies their synthetic filters to dealerships.
And....the oil drains out of the housing. Unlike a spin on filter, the amount of old oil is less than what's left pooling around in the engine. I don't see a downside to this with the Pentastar and some other cartridge applications.
Please keep talking.
Heck I ran an ancient tough guard filter to 20k plus over multiple OCI’s without issues.
I'm pretty sure you are the first person to ever tell me that.
Some of my stuff has multiple oil filters, at $30-60 each.
I still do 250hr OCIs.
On something running full out, maybe I'd bump it to 500.
Many shops here do 21 days or 500hrs, whichever comes first.