Joined the dark side-second OCI on a filter

[fdcg27]

I drained the oil from the Forester yesterday.
The engine had about 5K on the Synpower I drained.
The oil filter was (and is) a Bosch D+.
I figured that the D+ was a well constructed synthetic media filter, with ample holding capacity, and is intended for long drains.
I left the D+ on the engine and refilled the crankcase with another round of Synpower 5W-30.
I've never used a filter for more than one OCI before, but it seems to make sense to get more use from this oil filter, even if it did cost only ~$3.50 after AAP coupon code and MIR.
This seemed a sensible (and easy) choice.

 

[The Critic]

Are you already out of warranty?

If not, you are taking a big gamble.

 

[daman]

I would have at least removed the filter drained it good then reinstalled it,thats what i do with my NP that I'm running two OCI with.

there's allot of dirty oil still in a installed filter.

 

[bigjl]

Originally Posted By: The Critic
Are you already out of warranty?

If not, you are taking a big gamble.


Not in all cases as more and more manufacturers allow more than on OCI on a filter.

 

[fdcg27]

Originally Posted By: The Critic
Are you already out of warranty?

If not, you are taking a big gamble.


You really think that?
Normal OCI on this car is 7500 or 7.5 months per the OM.
Using a quality filter for 10K doesn't seem all that risky.

 

[The Critic]

Originally Posted By: fdcg27
Originally Posted By: The Critic
Are you already out of warranty?

If not, you are taking a big gamble.


You really think that?
Normal OCI on this car is 7500 or 7.5 months per the OM.
Using a quality filter for 10K doesn't seem all that risky.

I'm sure the filter will be fine, my concern would be compliance with Subaru's required interval of 7500 miles for the oil filter.

 

[sir1900]

You should have no problems stretching the filter out to 15k miles.

 

[bigjl]

Due to the longer OCI in Europe I have no problem leaving the filter on for even three short OCI's if I felt the need.

As an example my Pathfinder has a manufacturer OCI of 18k miles or two years.

So why would I be worried about leaving it in for two or even three 5k OCI's?

We continually hear about how air filters are more efficient as they get used.

Why would an oil filter be any different?

I wouldn't however go beyond a manufacturers interval.

 

[SuperDave456]

My opinion:

It'll be fine. The fact that you didn't change the filter, and the "dirty" oil in it, makes little difference.

I will bet everything that I own that if the engine blows it isn't the filter's fault.
The odds of an engine blowing, slim to none, if any periodic maintenance is taken.

How many beaters, clunkers, lemons, and junk are on the road with just top offs?

If anything the filter will catch more now that it is loaded.
The D+ series of filters are good ones.
You could probably run it for 3 OCI's.

 

[fdcg27]

Which Subabru will have no way of knowing.
I have a number of other filters for this engine in the stash.
I have used this filter on this car before, as well as some M1s and a K&N.
The M1s and the K&N were acquired as part of oil change specials.
It just seems so wasteful to discard a long drain filter after only 5K.
Incidentally, a 5K run on Synpower with this car yielded TBN of 2.19, so I really don't want to run the Synpower much beyond 5K.
Certainly not for 7.5K, although I'm probably just being overly conservative.

 

[Falken]

Honda allows 2x oci per filter.

I'd only personally do it with a silicone ADBV filter as they stay pliable after being in oil for a year. Nitrile gets hard and won't seal as well or may get brittle and crack.

The benefit of changing filters every oil change is if you get a filter with a tear in the filter element that lets unfiltered oil into the center core back into the engine it will only be on the engine for half as long.

Unless you get two filters that are defective in a row, which would simply be more unlikely.

 

[daman]

Originally Posted By: Falken

The benefit of changing filters every oil change is if you get a filter with a tear in the filter element that lets unfiltered oil into the center core back into the engine it will only be on the engine for half as long.

Or to reduce that tear risk run a fully syn wire backed media filter.

 

[HTSS_TR]

Originally Posted By: daman
I would have at least removed the filter drained it good then reinstalled it,thats what i do with my NP that I'm running two OCI with.

there's allot of dirty oil still in a installed filter.

I removed the filter to drain the old oil but nothing came out because the ADBV prevents oil from draining out. But there was some oil came out from the filter mounting hole.

 

[daman]

Originally Posted By: HTSS_TR
Originally Posted By: daman
I would have at least removed the filter drained it good then reinstalled it,thats what i do with my NP that I'm running two OCI with.

there's allot of dirty oil still in a installed filter.

I removed the filter to drain the old oil but nothing came out because the ADBV prevents oil from draining out. But there was some oil came out from the filter mounting hole.

Right some will come out the large return hole,to get even more out what i do is insert a small wooden dowel in the small inlet hole lifting the ADBV, this allows oil to be released to drain more out.

 

[HTSS_TR]

Originally Posted By: daman
Right some will come out the large return hole,to get even more out what i do is insert a small wooden dowel in the small inlet hole lifting the ADBV, this allows oil to be released to drain more out.

I'll try it next time. But I'm not sure I could lift the ADBV up from the Honda filter PCX-004 for the S2000.

 

[Sayjac]

Really, not too dark at all. Just finished a two oci interval with a BD+ at ~13.5k and ~20 months (15%MM x2) on a 3.0L Accord. Have it sitting here cut open, just haven't gotten around to taking and posting pics yet. Looks fine. I got my 3 BD+'s on an AAP code glitch on an oil/filter promo a couple years ago, worked out to ~$3.50 a filter. For Honda though, every other oci is recommended procedure, but I've never done it before.

BD+'s 29g rated holding capacity makes it logical choice (with some other filters) for two ocis. Warranty considerations if any aside, no worries with BD+ for 2 ocis imo.

 

[fdcg27]

Originally Posted By: daman
Originally Posted By: HTSS_TR
Originally Posted By: daman
I would have at least removed the filter drained it good then reinstalled it,thats what i do with my NP that I'm running two OCI with.

there's allot of dirty oil still in a installed filter.

I removed the filter to drain the old oil but nothing came out because the ADBV prevents oil from draining out. But there was some oil came out from the filter mounting hole.

Right some will come out the large return hole,to get even more out what i do is insert a small wooden dowel in the small inlet hole lifting the ADBV, this allows oil to be released to drain more out.


I really think you're better off just leaving the filter installed if you intend to reuse it.
I would be concerned about damage to the base gasket, and I wouldn't feel real comfortable sticking anything into a filer I intended to use for a second OCI.
Every manufacturer that I know of that recommends that a filter be changed every other oil change recommends leaving the thing in place and unmolested.

 

[daman]

Originally Posted By: fdcg27
Originally Posted By: daman
Originally Posted By: HTSS_TR
Originally Posted By: daman
I would have at least removed the filter drained it good then reinstalled it,thats what i do with my NP that I'm running two OCI with.

there's allot of dirty oil still in a installed filter.

I removed the filter to drain the old oil but nothing came out because the ADBV prevents oil from draining out. But there was some oil came out from the filter mounting hole.

Right some will come out the large return hole,to get even more out what i do is insert a small wooden dowel in the small inlet hole lifting the ADBV, this allows oil to be released to drain more out.


I really think you're better off just leaving the filter installed if you intend to reuse it.
I would be concerned about damage to the base gasket, and I wouldn't feel real comfortable sticking anything into a filer I intended to use for a second OCI.
Every manufacturer that I know of that recommends that a filter be changed every other oil change recommends leaving the thing in place and unmolested.

I see your point,but Ive been reinstalling filters for many years and not one problem with leak or blown out gasket they can be reinstalled.

and as far as damage? its really no concern as long as your not jamming it in there with force no harm ever has come to any of mine,just be gentle and lift the valve some no problem.

 

[bigjl]

I don't see any point in removing the filter to poke around with it trying to get a cup of used oil out of it.

There is no point whatsoever in reusing the filter as you have done the work required to change it so why put the old one back on?

I leave the filter in situ, taking it off introduces the risk of dirt, dust or grit getting into it unseen, which might end up going straight into the engine oil.

 

[daman]

Because extended drain filters are capable of it and i want to,and dirt intrusion? maybe if your a klutz and drop the filter or something.