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Old 01-12-2008, 10:47 PM   #1 (permalink)
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S&S oil filters

I was using a Harley Evo type oil filter but S&S told me that the Harley filter was a 10 micron type and that wouldn't allow enough oil flow to my engine properly. They said I should be using there filter because it's a 30 micron filter. Less restriction to the oil flow. Any opinions as to whether I have done any harm to my engine by using the evo filter untill now? I have just turned 8000 miles. I always change the oil and filter every 2500 miles without fail.
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Old 01-12-2008, 11:22 PM   #2 (permalink)
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A filter's low micron rating doesn't necessarily mean poor flow. I've actually been using the HD superpremium thats rated to 5 microns (same part # for the twin cam and evo). If it's good enough for HD, it's good enough for our bikes. If there was a problem we'd both know it by now.
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Old 01-13-2008, 12:09 AM   #3 (permalink)
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Quote:
Originally Posted by sulconst2 View Post
Interesting. I'll investigate further.
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Old 01-13-2008, 01:30 AM   #4 (permalink)
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yea Sul, that's one of the things I read from them to make me start using there filters. I figure if they built it, I can't go wrong using what they suggest
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Old 01-13-2008, 01:35 AM   #5 (permalink)
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Quote:
Originally Posted by Black Dawg View Post
A filter's low micron rating doesn't necessarily mean poor flow. I've actually been using the HD superpremium thats rated to 5 microns (same part # for the twin cam and evo). If it's good enough for HD, it's good enough for our bikes. If there was a problem we'd both know it by now.
I agree with this statement, I have run different types of filters on both my
k9 and my ridgeback and I did not notice any diference in power change.
As long as you keep up with your maintance schedule you can run any filter and be on the safe side.
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Old 01-13-2008, 02:08 AM   #6 (permalink)
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Quote:
Originally Posted by Black Dawg View Post
A filter's low micron rating doesn't necessarily mean poor flow. I've actually been using the HD superpremium thats rated to 5 microns (same part # for the twin cam and evo). If it's good enough for HD, it's good enough for our bikes. If there was a problem we'd both know it by now.
BLACK DOG YOUR LOw MICRO RATING JUST TOOK A SHIT. WHY becuz if it wont go thur 5micro it will go around it then what? 05chop
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Old 01-13-2008, 01:35 PM   #7 (permalink)
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Thanks Tocoloco, I feel better knowing I didn't do any real damage running the Harley filters. Someone told me that some of my top end valve noise might have been from the restricted oil flow of the 10 micron filter but when I changed to the S&S the normal valve train noise was still there. Big Dog dealer told me everything is normal so I stopped worrying and just turn it over and cruise.
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Old 01-13-2008, 02:34 PM   #8 (permalink)
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Quote:
Originally Posted by 05chop View Post
BLACK DOG YOUR LOw MICRO RATING JUST TOOK A SHIT. WHY becuz if it wont go thur 5micro it will go around it then what? 05chop
Proof? If you have some proof that the HD superpremiums will not flow enough oil or just have a poor flow rate I'd like to hear about it. Otherwise your statement means almost nothing.
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Old 01-13-2008, 07:59 PM   #9 (permalink)
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I haven't found any technical data on the HD SP filters yet. But here's what Harley says about them:

Untilizing advances in synthetic fiber media technology, the SuperPremium5 Oil Filters are TEST CERTIFIED to provide nominal 5 micron filtration to retain dust, soot, and other solid matter with low internal pressure loss. The filters also feature integral pressure relief and anti-drain back valves. Fits '99-later Twin Cam and Evolution 1340-equipped models and as an upgrade for any motorcycle that requires Oil Filter P/N ####...
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Old 01-13-2008, 08:02 PM   #10 (permalink)
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I use the cool looking Chrome Billet washable filter what was under the Group Buy section. Better for the environment to!
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Old 01-14-2008, 02:40 AM   #11 (permalink)
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Here's a quote from an ExxonMobil oil engineer in reference to low micron, synthetic filters and testing he's done. This is from the forums at Bob Is The Oil Guy.

"Welcome to the world of microglass/synthetic filtration medium. I upgrade industrial applications every day from cellulose to microglass: go from a 30 micron paper element filter to a 6 micron microglass. Vastly improved filtration, in the 90% reduction level, as in the EaO, AND the filter generally lasts 2 to 4 times longer than the cellulose filter it was replacing. How? Generally up to 40% of a cellulose filter element passes nothing, absolutely blocked.. Whereas the microglass or nanofiber (whatever) is 100% flowable filter. So, yes, filtering much finer, flowing much easier and lasting considerably longer, even though it is capturing 90% more particulates... Indeed, it is true......

...after having read several papers on the EaO medium in engineering publications, I had to do "real world" testing to confirm for myself the medium's efficiencies. Me, Mr. ExxonMobil, validating the performance of an Amsoil product!

George Morrison, STLE CLS "


The particular filter he tested was the Amsoil Eao, which in all likelyhood is very similar to the HD Superpremium5.
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Old 01-14-2008, 02:43 AM   #12 (permalink)
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Quote:
Originally Posted by slowrower View Post
I use the cool looking Chrome Billet washable filter what was under the Group Buy section. Better for the environment to!
Same as slow.....
I am going to go with the K&P filter......Ray is the expert on that.....and his miles on his bike speaks for itself! good job Ray!
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Old 01-14-2008, 03:26 AM   #13 (permalink)
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Originally Posted by Chopper Dave View Post
Same as slow.....
I am going to go with the K&P filter......Ray is the expert on that.....and his miles on his bike speaks for itself! good job Ray!
Thanks Dave, I've used the K&P now for over two years. LDO and I got them at the V-Twin Expo in Las Vegas from a seller there.

One thing I can remember is that even after the first couple cleanings I was still removing filter debrie from the motor. I used K&N filters prior.

Also, been awhile since I did any research on filters but remember that the "Industry Standard" was that a filter only had to meet 50% of it's rating. So if it was rated at 30 microns it only had to pick up at least 50% of microns larger than 30 microns.

I have no issues the the K&P and I've put a lot of miles on my motor without any harm to my knowledge. Still running strong. And I have used syn oil since the 500 miles service and have over 43,000 now.

Later,
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Old 01-14-2008, 03:33 AM   #14 (permalink)
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I had a friend that was riding his BD pretty hard on the eway a few years back and out of no where, the oil pressure idiot light came on so he immediately pulled over and checked the oil bag and could not see any oil inside. After it sat for a while, the oil bag eventually refilled. The dealership had inadvertantly put the smaller micron filter on his bike which would not allow the oil to recirculate fast enough while riding that hard for a long duration. He put the 30 micron filter back on the bike and never had the problem again. Just throwing it out there...

Actually, I just spoke with this person and the idiot light didn't come on, the bike just quit?
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Old 01-14-2008, 03:54 AM   #15 (permalink)
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I had a friend that was riding his BD pretty hard on the eway a few years back and out of no where, the oil pressure idiot light came on so he immediately pulled over and checked the oil bag and could not see any oil inside. After it sat for a while, the oil bag eventually refilled. The dealership had inadvertantly put the smaller micron filter on his bike which would not allow the oil to recirculate fast enough while riding that hard for a long duration. He put the 30 micron filter back on the bike and never had the problem again. Just throwing it out there...

Actually, I just spoke with this person and the idiot light didn't come on, the bike just quit?
Doesn't make sense cause isn't this the reason the filters have a bypass. It's supposed to lift at what 2 to 3 pounds pressure?
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