Oil/Filter OCI question

[JOD]

Well, the time has come. I'm almost out of warranty, and the case of 12 FL820S filters is nearing its end. And, I've run out of things to obsess over...

I'm wedded to the Ford filters because of the bypass valve location, and I'm also going to by using PP since I have about 6 changes worth hanging around. So, given the extra capacity, better filtration and better flow I'm going to try the Ford Racing CM-6731-FL820. I can get it for $12.00 and I guess I'm just itching to spin on something different. The specs look awfully good here https://bobistheoilguy.com/forums/threads/ford-racing-cm-6731-fl820.119282/

So, here's what I'm considering.

Option one: 7.5K OCI, 15K on filter

Option two: 10K OCI on oil and filter

Cost works out to be about the same. Engine is a 3.0 Duratec, easy on oil and I drive a fair number of hwy miles, moderate climate, not much stop and go. I haven't done a UOA but I've seen enough both on this oil and this engine to know I'll be safe either way. The engine consumes no noticeable oil, maybe 1-2mm on the dipstick over 5-6K miles.

That said, I'm liking option 1 better. Any thoughts?

 

[Chris Meutsch]

I'd do the latter, that's what I do with that oil. Pureone filter.

 

[sangyup81]

I wasn't under the impression that the Ford Racing filter is designed for extended drains. For that reason, I go with #2

 

[Burt]

Interesting that the makers of Microgreen oil filters say if you change their filter every 6k, you can go up to 30k before changing the oil. While Microgreen filters cost way too much, I'm a believer that oil stays oil as long as properly filtered and that if you buy a better filter that removes fine particles, you can just change the filter, top off the oil and you will not run out of additives over 15k.

 

[Steve S]

The racing filter is just that ,a racing filter it doesn't filter very fine. I do not remember the specs, it may not be the best choice for a filter. 10,000 miles for the oil and filter is easy to remember

 

[JOD]

Originally Posted By: Steve S
The racing filter is just that ,a racing filter it doesn't filter very fine. I do not remember the specs, it may not be the best choice for a filter. 10,000 miles for the oil and filter is easy to remember


Well, despite the name, if you look at the specs linked to in the original post it does filter pretty fine: 99% @ 20u. (versus 80% for the 820S). It has nearly 100 sq. in. more media than the 820S, so this is hardly surprising. And yet it has better flow and higher capacity. So, I'm not seeing how this filter isn't suitable for a passenger car??

 

[FZ1]

I think you should stay with the oci you have been running. Change the oil and filter at the same time. Just run an M1 filter if you want a good filter for $12.

 

[JOD]

Originally Posted By: FZ1
I think you should stay with the oci you have been running. Change the oil and filter at the same time. Just run an M1 filter if you want a good filter for $12.


2 questions:

-why would you suggest the Mobil 1 filter over the Ford?

-what logic is there in changing the filter and oil at the same time. As long as it's not full, doesn't filtering efficiency increase as the filter ages?

 

[Gary Allan]

Originally Posted By: JOD
Originally Posted By: Steve S
The racing filter is just that ,a racing filter it doesn't filter very fine. I do not remember the specs, it may not be the best choice for a filter. 10,000 miles for the oil and filter is easy to remember


Well, despite the name, if you look at the specs linked to in the original post it does filter pretty fine: 99% @ 20u. (versus 80% for the 820S). It has nearly 100 sq. in. more media than the 820S, so this is hardly surprising. And yet it has better flow and higher capacity. So, I'm not seeing how this filter isn't suitable for a passenger car??



Yep.

From what I have seen, Ford manages to actually make a superior filter that wears the "racing" label. It's counter to what just about everyone else offers.

 

[FZ1]

1.It's a better filter. 2. Flow is decreasing.

 

[JOD]

Originally Posted By: FZ1
1.It's a better filter. 2. Flow is decreasing.


1. what's better about it?

2. at what point does decreased flow impact engine performance or longevity?

 

[FZ1]

1.It's just my preference and what I use. The Ford racing filter looks good,too. 2. Dunno. I prefer new/clean to used/dirty.

 

[Gary Allan]

Quote:
2. at what point does decreased flow impact engine performance or longevity?


The question should be, "At what point in loading does just about any filter experience reduced flow?"

Out of the vast majority of your operation - virtually never.

 

[JOD]

Originally Posted By: FZ1
1.It's just my preference and what I use.


I have a preference for lots of stuff. That's different though than saying "it's better"...

From what I can cobble together on specs on both filters, the Ford offers similar filtration and better flow, with less capacity. Since you aren't suggesting super-long OCI's, the latter really isn't an issue. Also, the bypass is located where the manufacturer specifies it to be. Put that together and the Ford seems like a better choice, removing personal preference from the equation.

Originally Posted By: FZ1
2. Dunno. I prefer new/clean to used/dirty.


Well, intuitively that makes some sense. As far as filters are concerned though, it seems pretty well-established that "old and dirty" performs better (until it doesn't). After all, you don't change your air filter every 5K miles (or at least you shouldn't).

Basically, I'm wondering if folks are changing their oil filter too often. Plus, with the increased flow and capacity of the Ford racing filter, I'm not seeing why it wouldn't last at least 15K miles. I'm actually thinking that once a year/20K miles might even be the way to go.

Option 3: oil change every 10K/filter change every 20K. hmmmm....