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OperationSmile.org
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I am considering building my own Dual Bypass. I have my bases and mounting figured out but I don't know how these things mount and are plumber. Could some one with this type of kit post some pictures and descriptions showing the plumbing and such. Any help will be appreciated. Thanks
 

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Dual bypass seems excessive. The biggest problem with oil in a 6.0 is the viscosity (it shears it down to 30 weight pretty quickly), not particles
 

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ive always read/heard NEVER to do a dual bypass on these motors?? I have no experience with it, its just what ive read
 

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Discussion Starter #4
Dual bypass seems excessive. The biggest problem with oil in a 6.0 is the viscosity (it shears it down to 30 weight pretty quickly), not particles
I have a 7.3 though. I have heard good and bad things about the dual bypass. doinga single would make no differance than just putting a better filter in place of the stock. Any ideas
 

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A single bypass does not remove your standard oil filter that is on the block. There are ports on the filter housing on the block where you would attach your feed and return lines for your single kit. So you will still get the filtration of your standard filter and then the much finer (2-3 micron) bypass filter. From what I have read and been told the dual setups are no longer recommend for use of the 7.3. Even Amsoil no longer recommends using their dual filter kit on our 7.3's. I personally don't feel that it is worth the risk in running one of them. And as far as I know the single and dual kits should filter just as good as one another (so long as you use the a good filter on the block), but don't quote me on that.

Hope that helps,
Mike
 

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Discussion Starter #6
That sheds alot of light on things. Thanks Matredgt for that useful info. I thought the kit got rid of the stock filter. Thanks
 

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A single bypass does not remove your standard oil filter that is on the block. There are ports on the filter housing on the block where you would attach your feed and return lines for your single kit. So you will still get the filtration of your standard filter and then the much finer (2-3 micron) bypass filter. From what I have read and been told the dual setups are no longer recommend for use of the 7.3. Even Amsoil no longer recommends using their dual filter kit on our 7.3's. I personally don't feel that it is worth the risk in running one of them. And as far as I know the single and dual kits should filter just as good as one another (so long as you use the a good filter on the block), but don't quote me on that.

Hope that helps,
Mike
Where did you here or read that? I have been on the AMSOIL website and there is no mention of it as far as I read. I did read where they say its not recomended for the 6.0 though. I was just talking with a local AMSOIL rep today and did not mention anything about them not being recomended.
 

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I have the dual Amsoil set up and love it. I couldn't find anything on their web site about not using the dual on the 7.3 either.
 

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I just put 15 quarts of AMSOIL 15W40 and AMSOIL filter in mine. I didnt realize that the dual bypass system deleted the filter on the block. I am ordering my mine tomorrow. The dealer said I should see an increase in mileage as well. I am going to go full synthetice with erverything eventualy. I am trying to do everything to squeez the most mileage out of my truck as possible.
 

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Here is a PM that I got from Shawn (Performance Oil Products).

Re: Bypass filter

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Quote:
Originally Posted by MATREDGT
Shawn,

I was wondering if you could tell me the part number of the Amsoil bypass filter kit I should use on my 99 PSD? I have heard that the dual kit is not good to use on the 7.3 but the single filter is okay. So is it the BMK-11 or the BMK-13 (please forgive me if the part numbers don't even exist I am just going off the top of my head). Also what Amsoil oil filter would I need for my truck? All I see is Group 1-7.

Thanks,
Mike

Hey Mike the bypass you would want the the BMK11-EA and the EABP100-ea filter to go with it.

Your full flow filter part number is EAO99-EA

Amsoil recently changed there product number system now it's a PITA to get used to. If you are looking for a single product the last part of the product number will be ea for each. If all else fails call or PM me and I'll make sure you get the right numbers

Shawn

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Ignore the info about the regular oil filter, but as you see he recommends the BMK11-EA, which is the number for the single bypass kit.

If I remember correctly the dual bypass kits main problem was that it took to long for the oil to get back into the motor and caused a drop in oil pressure. I know Amsoil doesn't list anything about not using the dual kit on their site, but I would call them and ask them on the phone or through email to be sure. I don't think it is a very common problem but it has occured to some PSD's that were outfitted with the dual kit. You could also PM Shawn and ask him opinion as he knows the Amsoil line well.

Also all of the info I have talked about on here can be searched for on this site and a few other diesel sites. Just google the bypass kit and they should come up. This site had more than enough threads with information saying that the single kit was better so that is what I based my opinion on. I usually like to form my own opinion about things but I can't afford to risk a $10,000 engine.

Hopefully that cleared up some things,
Mike
 

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Thanks mike good write up/info. Well I hope this info is wrong only because I just ordered my kit. The one for the internation motors is I believe BMK26 which excludes the 6.0. I will get ahold of them before I install it.
 

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I just got some information back from Amsoil, and the newer dual bypass system (BMK26) solves previous possible flow issues. I was also told the BMK26 is approved for the 7.3L.
 

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I have that one on my truck. Make sure you sign up for the prefferd customer program so you can get it at cost. You will save big. I was told 331, I got it for less than 200. I looked on thier website and the preffered price is 247. I think may my local dealer gave it to me for cost. My oil has been in for about 2000 miles now and is still translucent and I never emptied my HPOP like some suggest. I figured the oil would darken after that but it is still clean. I also run AMSOIL 15W-40 HD Diesel oil.
 
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