M8 oil filter ok?
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,590
Likes: 3,360
From: Cental, MI
Ahh, the lowest bidder myth again.
How do you know what process is used in obtaining the filters?
How do you know the aftermarket doesn`t use lowball bidders for the parts used in their filters?
There is a lot more involved in finding subcontractors than simply finding a company that can put in a low bid.
Have you ever heard of an OEM Harley oil filter causing a problem?
The manufacturer says the M8 filter will work on certain EVO models, the reason they can`t be used on all EVO models is because a few models used an oil filter with an oddball thread.
How do you know what process is used in obtaining the filters?
How do you know the aftermarket doesn`t use lowball bidders for the parts used in their filters?
There is a lot more involved in finding subcontractors than simply finding a company that can put in a low bid.
Have you ever heard of an OEM Harley oil filter causing a problem?
The manufacturer says the M8 filter will work on certain EVO models, the reason they can`t be used on all EVO models is because a few models used an oil filter with an oddball thread.
Apples and Potatoes!!!!!
After all that I could Care Less what Others do with their Motorcycle... I run to Manufacturers Specs (at the time of Manufacture) whenever possible... Y'all??? Do Whatever makes ya Feel Good... Won't affect me one Drop...
Last edited by Racepres; Jul 24, 2023 at 02:12 PM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,130
Likes: 12,691
From: South Carolina
I have been using a Twin Cam filter for many years on my `89 Softail, no oil coming out the breather.
The oil pump is original and has never been rebuilt, 145,000 miles so far, and it has no problems scavenging the oil and returning it to the tank, through that "too restrictive" filter.
The oil pump is original and has never been rebuilt, 145,000 miles so far, and it has no problems scavenging the oil and returning it to the tank, through that "too restrictive" filter.
Last edited by Dan89FLSTC; Jul 24, 2023 at 03:47 PM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,130
Likes: 12,691
From: South Carolina
Just because you don`t agree with the manufacturer does not make them (and me) wrong...
I don`t see any posts on any forums addressing real issues with TC filters being used on Evo engines, but lots of posts about not to use them because oil will blow out the breather.
I don`t see any posts on any forums addressing real issues with TC filters being used on Evo engines, but lots of posts about not to use them because oil will blow out the breather.
Last edited by Dan89FLSTC; Jul 24, 2023 at 06:27 PM.
Cruiser
Joined: Apr 2020
Posts: 111
Likes: 45
From: australia
I have read somewhere that it's about the Microns of the filter, can't find the reference but it's got to do with Evos running on flow not pressure. Someone with more knowledge on the subject may correct the numbers but from memory it's something like this. Evos run a 10 micron and twin cams and later run a 5 micron. with the larger microns supporting better flow.
sorry for the repartition posts above mine refreshed after i posted.
sorry for the repartition posts above mine refreshed after i posted.
Last edited by Ozzie John; Jul 24, 2023 at 06:12 PM. Reason: update
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,590
Likes: 3,360
From: Cental, MI
Just because you don`t agree with the manufacturer does not make them (and me) wrong...
I don`t see any posts on any forums addressing real issues with TC filters being used on Evo engines, but lots of posts about not to use them because oil will blow out the breather.
I don`t see any posts on any forums addressing real issues with TC filters being used on Evo engines, but lots of posts about not to use them because oil will blow out the breather.
Facts are unavoidable... Shovels and Evos do Not rely on Pressure... only what little pressure which supplies Flow! More restrictive is a Fact of Smaller Micron ratings... Restriction is a Cause of Pressure.
All Facts, that the Pimple faced kid, working for the New MoCo...has No Clue... Take yer Evo to the Dealership for your Next Oil Change, and Service Interval...How's that go????
Or... Keep doin what You are Doing... Working for You...But...Don't make it Right....
On the oil out the breather.... Caused by Sumping... if occurring when running, can Only be attributed to not being able to Evacuate the Bottom end (sump).. The Oil Return...thru the Filter, cooler etc... is Only thing that can Change that... Restrict return flow...oil gotta accumulate someplace..
And now...I step aside...Obviously some need to hear from someone else...I ain't Smart enough!!!!
Original question; M8 oil filter OK (in Evolution Engine). Correct Answer: Not Recommended... All else is Supporting the Recommendation
Last edited by Racepres; Jul 25, 2023 at 06:59 AM.
Seasoned HDF Member
Joined: Apr 2010
Posts: 9,559
Likes: 7,907
From: Long Island, New York
As long as the dealership sells the correct filter for my Evo, that being the "long" one, I will keep putting it on the bike. Why mix and match if you can get the correct part.
Now, when they no longer have those filters in stock, we have a conversation. Good luck.
Now, when they no longer have those filters in stock, we have a conversation. Good luck.
Intermediate
Joined: Aug 2020
Posts: 41
Likes: 18
From: Seaford, NY
Decisions to cut the workforce and streamline production resulted in a lower quality product and disgruntled workforce that eventually resulted in a labor strike. After 12 years of mismanagement, the company was sold back to a group of 13 investors (including Willie G. Davidson) for a mere 80 million dollars. They began designing the Evolution engine shortly afterwards, and the rest is history.
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Club Member
Joined: Dec 2014
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From: SWFL
Oh...But I do agree with the Manufacturer/designer...AMF in Fact, is the Designer of the Evo Motor... I go by the Recommendations from at the Time, and By Whom, it was built... same as the Shovelhead!!!
Facts are unavoidable... Shovels and Evos do Not rely on Pressure... only what little pressure which supplies Flow! More restrictive is a Fact of Smaller Micron ratings... Restriction is a Cause of Pressure.
All Facts, that the Pimple faced kid, working for the New MoCo...has No Clue... Take yer Evo to the Dealership for your Next Oil Change, and Service Interval...How's that go????
Or... Keep doin what You are Doing... Working for You...But...Don't make it Right....
On the oil out the breather.... Caused by Sumping... if occurring when running, can Only be attributed to not being able to Evacuate the Bottom end (sump).. The Oil Return...thru the Filter, cooler etc... is Only thing that can Change that... Restrict return flow...oil gotta accumulate someplace..
And now...I step aside...Obviously some need to hear from someone else...I ain't Smart enough!!!!
Original question; M8 oil filter OK (in Evolution Engine). Correct Answer: Not Recommended... All else is Supporting the Recommendation
Facts are unavoidable... Shovels and Evos do Not rely on Pressure... only what little pressure which supplies Flow! More restrictive is a Fact of Smaller Micron ratings... Restriction is a Cause of Pressure.
All Facts, that the Pimple faced kid, working for the New MoCo...has No Clue... Take yer Evo to the Dealership for your Next Oil Change, and Service Interval...How's that go????
Or... Keep doin what You are Doing... Working for You...But...Don't make it Right....
On the oil out the breather.... Caused by Sumping... if occurring when running, can Only be attributed to not being able to Evacuate the Bottom end (sump).. The Oil Return...thru the Filter, cooler etc... is Only thing that can Change that... Restrict return flow...oil gotta accumulate someplace..
And now...I step aside...Obviously some need to hear from someone else...I ain't Smart enough!!!!
Original question; M8 oil filter OK (in Evolution Engine). Correct Answer: Not Recommended... All else is Supporting the Recommendation
Fitment: Fits Harley-Davidson Milwaukee-Eight 17-later Twin Cam 99-17 And Evolution 99-later (except 08-13 XR). Can be used as an upgrade for any motorcycle that requires Oil Filter P/N 63796- 77A 63805-80A 63812-90 or 63813-90.
I just don't know. I'll stick with the original or the Hiflofiltro equivalent.
Last edited by Mchad; Jul 26, 2023 at 11:44 AM.
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,590
Likes: 3,360
From: Cental, MI
Decisions to cut the workforce and streamline production resulted in a lower quality product and disgruntled workforce that eventually resulted in a labor strike. After 12 years of mismanagement, the company was sold back to a group of 13 investors (including Willie G. Davidson) for a mere 80 million dollars. They began designing the Evolution engine shortly afterwards, and the rest is history.
As for Lower quality product... maybe in the mid 70's...Maybe... by the '80's the Shovelhead had reached the Epitome.. and even AMF knew it was Dated!!!
So they had already invested Heavily in the Evo to replace it, and of Course...Nova to surpass the entire Industry... or Maybe the Wizz Kids really were All That!!!
yea you know...the Kids that brought us the Twinky...and Reintroduced Planned Obsolescence!!!
Gotta Love the Internet!!!
