I would like to know because I am considereing taking intervals out to 15k with a Redline motor oil, but can get a great deal on PureOne filters. I would like to run them about 7k miles and then change them out without changing oil. Will you loose more oil if you do this without draining the oil first?

 

I don't see how that's going to work.

It'll be one helluva mess with oil running all over the place. Easier just to change the oil.

 

Does the oil pump up to the filter? The oil in the pan is lower than the filter if I recall correctly, so I'm not sure it would be any different. Same situation: if you were changing your oil but unscrewed the filter before you drained the pan.

Are you loosing more oil if you do it this way? If so how much?

 

You'll only loose the normal amout of oil.
I would wait until the MID recommends the change, change the oil filter, reset the MID, then do a full change with filter at the next time the MID indicates it's do again. Might want to mark the mileage on the oil filter case, just to keep the changes straight and don't forget to replinish the oil that was lost.

 

I've never tried that on any car. You are right, the oil pan is lower than the filter, but you're still in for a bit of a mess (and maybe worse than that). You'll definitely loose 0.3qt of oil that is in the filter, plus any additional oil that drains from the tube once you remove the filter. I'd guess about another cup or so?

Why not just run the filter for the full 15K and then run a UOA on it? The Acura service interval is to replace the filter every other oil change, which for most of us would be 12K-16K miles anyhow.

From my experience, the PureOne filters can easily meet a 10K interval and may very well be good up to a 15K interval. Below is the UOA on my last change with an 8100 mile interval using the PureOne filter. I'm taking my next interval to 10K on the PureOne and will run another UOA on it (at about 5K now). I'd say just run the PureOne for 15K and see what you get.

 

Do you have a link to your UOA? I would like to see. I wish we had a bank of UOA with 'same filter same oil, different intervals' and so on. With enough samples, that we could make some pretty good conclusions about 1)oil weights 2)oil filters 3)appropriate intervals. Using only one UOA, I wonder what kind of variance there is.

 

You can't see the image in my post?

 

Great report! My 06 has 48K on her. I just switched over to M1 a couple of oil changes ago and this gives me great comfort in that change over from non-synth. I'm using a Fram Xtra guard filter, changing out oil & filter at 7500 mi. thougths?

 

i see it.

 

That is what I was thinking. With our cars taking 4.5qts I think it will work out where I can use the other half qt to cover the loss from the filter.

I would like to know if this way is any better than using an extended performance filter like a M1ep, K&N or RoyalPurple (b/c I think those are made for extended intervals if i'm not mistaken). I've run the PureOnes a few times and they seemed to do the job although I don't have any kind of evidence to show that they did in fact do a good job! I guess I like them b/c they seemed to be very well manufactured and have more element surface area than others in the same class.

I can't see it, but I may be able to on my home computer.

 

Did you cut open your filter to examine it? This may give you a good indication of how much life is left on the filter, especially if you plan on extending the oil drains. And, I couldn't find in the owner's manual where the change interval on the filters is every other oil change. This seems like an odd practice to me.

 

I have noticed in the matenance journal there is a slot for just oil and I think they alternate every other change for the filter. I wouldn't do it, but apparently the dealerships $70 oil change doesn't always include filter! I wonder about the life expectancies though. I've cut them open and I don't know how you would tell if it is spent or has more life. It wasn't filled up with thick goop or anything like that.

 

Nope, didn't cut it open.

Yep. "A" is oil only, "B" is oil and filter.

 

Yeah, I found it. Maintenance Main Item "A" calls for changing the oil, while Maintenance Main Item "B" calls for oil and filter. Wow. I think I will continue to change both every time, though.

You beat me too it.

 

do dealers strictly follow this schedule? or do they replace the filter ever time they do an oil change?

 

http://slickdeals.net/permadeal/4960...one-oil-filter