I would like to compare two different motor oils in the same car. It seems like if I use a relatively good oil filter, such as Purolator PureOne or Bosch Premium, then this can mask the wear metals. Would it make sense to use an average oil filter, such as Fram ExtraGuard so that more particles end up flowing to take the UOA? The OCI will be 3-5,000 miles.
Should I use the worse oil filter for UOAs?
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It'll probably make no difference. I believe Bob (as in Bob is the Oil Guy) ran ... was it a Ford Escort? Yeah.
He ran one of those turdbuckets with no oil filter at all for some period of time. Maybe someone can find that thread? I seem to remember he sent the oil out for UOA and it came back pretty good.
He ran one of those turdbuckets with no oil filter at all for some period of time. Maybe someone can find that thread? I seem to remember he sent the oil out for UOA and it came back pretty good.
The better idea is to open oil filters and collect all wear particles (lets say on magnets) and compare. The sub 10um particles in oil are not representative of the totality of wear.
I actually use magnetic drain plugs and that gives me some really good ideas.
I actually use magnetic drain plugs and that gives me some really good ideas.
Just for your own information.....It takes a filter 2000 to 3000 to start filtering most efficientley. The first few thousand miles actually cause larger particles through...thus causing more wear.
Depending how you drive, (high revving, always stomping on it, etc) you may be in bypass frequently filtering nothing. Even some real cold starts can trigger bypass. So its near impossible to calculate the filter into the UOA.
Originally Posted By: JRed
It'll probably make no difference. I believe Bob (as in Bob is the Oil Guy) ran ... was it a Ford Escort? Yeah.
He ran one of those turdbuckets with no oil filter at all for some period of time. Maybe someone can find that thread? I seem to remember he sent the oil out for UOA and it came back pretty good.
Hey! I like my escort.
It'll probably make no difference. I believe Bob (as in Bob is the Oil Guy) ran ... was it a Ford Escort? Yeah.
He ran one of those turdbuckets with no oil filter at all for some period of time. Maybe someone can find that thread? I seem to remember he sent the oil out for UOA and it came back pretty good.
Hey! I like my escort.
Run a good filter. If the engine is wearing and the filter is a lot catching the particles that is a good thing.
I guess I mean what is the point of using a lousy filter and finding larger micron wear metal? Are you going to replace the engine if it is shedding metal or are you going to get a better filter? Do you catch my drift. Just use a good filter and do a particle count.
I guess I mean what is the point of using a lousy filter and finding larger micron wear metal? Are you going to replace the engine if it is shedding metal or are you going to get a better filter? Do you catch my drift. Just use a good filter and do a particle count.
Originally Posted By: Oregoonian
Just for your own information.....It takes a filter 2000 to 3000 to start filtering most efficientley. The first few thousand miles actually cause larger particles through...thus causing more wear.
I think some filters have more than one layer and the outer layer catches the larger particles and the inner layer catches the smaller particles.
With a single layer its always a trade-off of good flow, how small a micron size to filter and how long before its in bypass. Multiple layers is the only real solution.
But I would doubt you would see a big difference in the UOA between a OCOD and a NAPA Gold.
Just for your own information.....It takes a filter 2000 to 3000 to start filtering most efficientley. The first few thousand miles actually cause larger particles through...thus causing more wear.
I think some filters have more than one layer and the outer layer catches the larger particles and the inner layer catches the smaller particles.
With a single layer its always a trade-off of good flow, how small a micron size to filter and how long before its in bypass. Multiple layers is the only real solution.
But I would doubt you would see a big difference in the UOA between a OCOD and a NAPA Gold.
I read that larger particles like metal shavings are too big to be measured in a lab sample, do not appear as "high iron" on a UOA. If we knew approx what size particulate (in microns?) they measure, we would know if the filter has any impact at all.
I doubt that you'd see any difference in a UOA.
Also, the OCOD offers very good filtration.
The main advantage of a "better" filter isn't in filtration, it's in holding capacity and more robust contruction and media.
I'd personally use either Purolator (P1 or Bosch) over an OCOD, if only because you get more for your money in terms of construction quality.
Finally, the metal particles found in a UOA are way to fine for any full flow filter to catch.
Also, the OCOD offers very good filtration.
The main advantage of a "better" filter isn't in filtration, it's in holding capacity and more robust contruction and media.
I'd personally use either Purolator (P1 or Bosch) over an OCOD, if only because you get more for your money in terms of construction quality.
Finally, the metal particles found in a UOA are way to fine for any full flow filter to catch.
Lol... Escort. Actually a pretty reliable small car... but the name makes me laugh.
If most of us were to hire an Escort, we'd want something fast, exciting and sexy.
For escort is none of the above. Simple Transport would have been the appropriate name.
That said, I have a Focus for a work car, and the Zetec motor has really held up well. Almost all original motor parts.. just the module/coil pack was replaced. If I recall, the Zetec was introduced as an Escort motor... they have a reputation for 200K miles will almost no compression loss.
If most of us were to hire an Escort, we'd want something fast, exciting and sexy.
For escort is none of the above. Simple Transport would have been the appropriate name.
That said, I have a Focus for a work car, and the Zetec motor has really held up well. Almost all original motor parts.. just the module/coil pack was replaced. If I recall, the Zetec was introduced as an Escort motor... they have a reputation for 200K miles will almost no compression loss.
In general, you should run tests on the actual circumstances. So if you plan to use cheap filters, use them for the test. If you will always use a certain brand, use that brand for the test. Adding variables can make the results useless.
Anyway, I think the person who said that anything large enough to potentially be caught in a filter is larger than what the UOAs test for. They test for dissolved stuff, don't they?
Anyway, I think the person who said that anything large enough to potentially be caught in a filter is larger than what the UOAs test for. They test for dissolved stuff, don't they?
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