Fresh filter and fresh oil may make a positive difference all in all 
Fresh Oil filter Every time?
- Thread starter fbdewar
- Start date
- Joined
- Jan 29, 2022
- Messages
- 115
I change my oil every about every 3k-5k miles, but I don’t change the filter every time though.
Disclaimer: I just change my oil often and it’s just what I do. I not telling anybody to do what I do. I feel like I have to add disclaimers to every single thing I say on this forum.
But anyways, I change the filter every other oil change, so I get about 8k-10k miles from one filter. I use Fram Ultra synthetic. I believe it’s the best filter you can get for under $10, change my mind.
Again, what do is what I do. What you do is what you do.
Disclaimer: I just change my oil often and it’s just what I do. I not telling anybody to do what I do. I feel like I have to add disclaimers to every single thing I say on this forum.
But anyways, I change the filter every other oil change, so I get about 8k-10k miles from one filter. I use Fram Ultra synthetic. I believe it’s the best filter you can get for under $10, change my mind.
Again, what do is what I do. What you do is what you do.
Generally not the same people though.
Way back 20-30 years ago, Honda recommended 10,000 mile oil changes and to change the oil filter every 20,000 miles. And this was with a cheap $3-$4 filter.
I tried it. Saw no problems. Been doing it ever since for probably almost a million miles without ever an issue.
I’d say you can run an oil filter for 20,000 miles no problem and your engine won’t care. I’ve done this for 2 decades.
I tried it. Saw no problems. Been doing it ever since for probably almost a million miles without ever an issue.
I’d say you can run an oil filter for 20,000 miles no problem and your engine won’t care. I’ve done this for 2 decades.
If the filter was installed between Jan-Mar and the ambient temp was 2c or lower and the engine ran for 3-5 mins immediately after fresh oil on that day then it is advised to do whatever floats your boat.
Me I change every change. Cheap orange can on the minivan and oem or cheap orange on the rav(depends if the dealer is open that day).
Me I change every change. Cheap orange can on the minivan and oem or cheap orange on the rav(depends if the dealer is open that day).
Generally. Although over the years there were a few surprises.
Nick1994
$100 site donor 2024
I don't think it matters all that much in the end. If you're changing the oil kinda early, maybe run the filter for another OCI if it's a high end filter. I run 2 OCIs sometimes.
Splitting hairs on $ spent and engine longevity.
Splitting hairs on $ spent and engine longevity.
I agree. I did a Blackstone particle count measurement at 5k, 10k and 15k on my Toyota 2GR-FE V6 engine without changing the Fram Ultra XG9972 filter but the oil was changed every 5k. The ultra blocked particles greater than 20micron which was great. But the 4 micron particles at 15k went through the roof. Now, I do an oil change every 5k and filters every 10k.
Last edited:
It is fairly difficult to get to the drain plug on my cars. Once I am there, the filter is right next to it, so I change it every time. If I was sucking the oil out from above, it might make sense to do every other change.
Ascent's ISO testing showed all the filters he tested lost efficiency as they loaded up - some worst than others. It's a pretty typical phenomena on oil filters.
The ISO 4548-12 efficiency rating is the average of the new vs highly loaded filter. So if an oil filter has a low ISO efficiency it's likely due mostly to debris sloughing as it loads up. High efficiency ISO rated filters have hardly any debris sloughing from new to highly loaded because they lose very little efficiency with dP from high loading.
Would you all like to see ISO 4548-12 Oil Filter Lab Testing Comparison, Efficiency & Capacity, Pressure vs Flow, Bubble Point, and Burst?
In this case efficiency did not get significantly better over time and exhibit that behavior. The "Hockey Stick" is demonstrated in the deltaP Curve vs Time. The Medium Test Dust was injected at approximately 2.1-2.2grams every five minutes for each filter. It will all be explained in the video...
bobistheoilguy.com
Last edited:
It's what I did, and I even stretched out the interval later on as the continuously fresh oil didn't load the filter as quickly as 1 regular oci would.
JHZR2
Staff member
Losing efficiency would imply that particles are making their way through the media, as the media loads up with particles. Not sure I buy this concept…
Both things can happen. The media can be inefficient due to large pore size, plus particles already caught in the media can be dislodged from the media and flow out of the media as the dP increases across the media. No filter retains every single particle it catches. Some of the already catapulted debris can become dialoged and be swept out of the media due to the dP from the oil flow across the media. The Ascent ISO efficiency test data shows that's happening, it clearly shows the efficiency decreasing as the filter loads up. There's also a graph from Purolator/M+H a few posts down in that link above showing the phenomena.
honda still recommends changing oil filter every other time you change oil.
I change the oil filter with every oil change.
I don't change oil and or filter as often as most people here. Extremes have been 15.000 miles on oil, 20,000 miles on a filter. Currently have 3.5 years/14,000 miles on an oil filter. My cars just keep going. I believe I have saved money and time. My Hyundai is a different story.
Similar threads
