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Oil Bypass Filter - brands/homemade? - Looking to extend oil changes

47865 Views 44 Replies 21 Participants Last post by  unclederrty
So I have been running the full synthetic Rotella T6 5w-40 oil. At roughly 16-18qts per oil change (sucking 1-2 quarts from the HPOP as I have seen it extends injector life.) I have been looking at extending my oil changes.

I am really close to having to change my oil again and though this may be a good time to send a sample out to Blackstone for analysis and maybe install a bypass filter. My truck is a daily driver and occasionally used on longer trips. Towing is only a couple times a year and if so is an enclosed trailer (16' double axle with no more than 4k lbs in it).

I was wondering what is the best bypass filter system for the price? I've heard the FS-2500 is the best but is it really worth the $500? What other good systems are there that have enabled you to extend your oil changes (per oil analysis)?
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Ken wrote a page on how to do your own for less than $200 - View attachment Oil By-Pass Filter Installation.pdf
Not sure about the 7.3 but I have the Amsoil on my 6.0 and I like it. Could have come with some longer hosing but I just got stuff made at the local tractor shop and mounted it down behind the front bumper for easy access and to keep it out of the engine bay (not a whole lot of room up there).
i have kens set up mounted right behind my drivers side leaf spring. very easy set up!
I've been talking to woodnthings about his setup and just wanted to see what other options were out there. I am probably going to follow his setup because there is a grainger around the corner from me and its alot cheaper. I was just a little leary at first though because the price seemed too good to be true. After discussing it with him I can see now why the kits cost so much (R&D/name).

Anyone know the micron rating of the FS-2500?
I've followd Ken's write-up as well and it went very well. I have been running it for 5,000 miles now. Looking forward to my first blackstone report.
Anyone see a problem with running the filter horizontal instead of vertical? I was thinking if I mounted it horizontal then I could use the larger baldwin filter without losing any ground clearance.
I read the setup by woodnthings, is that normal to use a 40micron filter? That seems course to me.
I think he's saying that the 40 micron is what your diesel would normally run. Therefore by installing the bypass you are keeping oil flow but reducing the micron rating that you can filter to.

Today I ordered a Blackstone kit and went to Grainger and ordered the parts for the woodnthings install.
I don't visit the 7.3L threads much anymore, but here in my facebook albums I have what I had done for my 7.3L.

Albums by TooManyToys | Facebook

I've transferred it over to my 6.0L using different hoses, so if anyone want to do the same setup I'll sell off the braided SS hoses and fittings for a decent price.
Well I would have but I bought all the fittings for the woodnthings setup.
The Baldwin filter is not really a bypass filter the Amsoil filter mount has a orifice plate that slow oil down so you don't lose oil pressure to the engine and filters it through a 2 micron filter. If you look on ebay for oil bypass kit you will see these.

oil bypass kits | eBay
I ordered a kit from NUC Motorsports for $195.

The kit comes with everything needed to install on an 99-03' 7.3 with an automatic transmission. The parts included:

  • Stainless steel braided PTFE lines
  • laser cut mounting plate
  • Billet aluminum spin-on filter adapter
  • Amsoil EaBP100 filter
My dilemma was that I have a ZF-6 manual, not an automatic, so the mount wouldn't help me any. So using some 2"x2"x⅛" aluminum, I fashioned my own bracket. I know the ⅛" stuff sounds weak, so I doubled it up on one side to add rigidity.

The flywheel cover bolts are M8 if I recall. I nabbed some continuously threaded stainless steel set screws that were about ½" longer than the OEM bolts, and secured them with flat washers, followed by lock washers and a hex-nut, all of which were stainless steel.

I ended up mounting the filter on the horizontal plane, which will allow me to use a EaBP110 in the future if I desire.

For those of you doing this yourself, I encountered a big problem removing the return plug on the side of the block. I ruined the plug trying to remove it. So off to Lowes I went, to find a #6 screw extractor. It was very difficult to get out.

Then after about 600 miles, I sent a sample to Blackstone. They said I'm in real good shape, TBN was 7.7, Insolubles was 0.1%. The second analysis at 9,500 miles showed insolubles at 0.2% and TBN @ 7.1. I'm running Mobil 1 Turbo Diesel Truck 5W-40.

Here's a picture of the filter.

Here's my last Blackstone analysis.
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The Baldwin filter is not really a bypass filter the Amsoil filter mount has a orifice plate that slow oil down so you don't lose oil pressure to the engine and filters it through a 2 micron filter. If you look on ebay for oil bypass kit you will see these.

oil bypass kits | eBay

That isn't true. Baldwin's B50, and B164 are purpose-built bypass filters that have the reduced orifice. I've been running them for 6 months now. Heres a photo. Notice the small hole indide the filter. http://catalog.baldwinfilter.com/PartImages/B50.jpg
That isn't true. Baldwin's B50, and B164 are purpose-built bypass filters that have the reduced orifice. I've been running them for 6 months now. Heres a photo. Notice the small hole indide the filter. http://catalog.baldwinfilter.com/PartImages/B50.jpg
+1 I was very concerned with this as I don't have an oil pressure gauge. I made sure that there was some form of restriction before I ordered it. Not sure how much the Amsoil filters cost but I think the Baldwin B50 costs about $6. I didn't think this was a bad price for a quality product.
OK good that looks like the one's we use for coolant filters on the 6.0 but i see it here it is for oil and has the orifice plate

Baldwin Filter B50 Oil Filter
How much oil will drain out of the plugs when I remove them to install the fittings into the block? I ask because i need to do an oil change tonight but won't have the stuff to install the bypass until next week. Just curious how much oil I'm going to lose.

I though maybe if I go quick I won't lose much:roller:
Very very little when I did mine. None out of the inspection plug.
OK. I just wanted to make sure I wasn't going to get showered with oil if I took one of the plugs out. I know how good oil can shoot when it is just under gravity pressure.

I can just use hydraulic line for the oil lines right or does it have to be the braided stainless teflon stuff?
Hydralic.should work. It isnt under much pressure
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