Oil bypass filtration system

ca1297

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Does anybody know anything about a oil bypass filtration system I know amsoil has one, I can't really find any consumer info on this system. Just wondering of it would even be worth my time....


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ca1297

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The amsoil one is significantly cheaper then that one if you do end up getting one


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bruce

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None of them are worth it imo, they don't do anything about shearing which is the real problem in these engines
 

DEEZUZ

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I installed the amsoil dual kit right when I got my truck a few years back. Used it a year and decided it wasn't worth it. Filters are outrageous and your still shearing your oil so what's the point
 

jimdawg185

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Good oil doesn't shear in a 7.3, 6.0s are a different story. I use bypass filters on everything from diesels to 10 million dollar turbines. We did a test on some loaders at a mine in Colorodo. All three loaders went 50 plus thousand hours before the loaders started falling apart around the engines (no rebuilds, 1000 plus hour oil changes). That is stupid longevity. The reason is that particles that cause wear are between the sizes of 1 and 6 microns. Most factory filters nominal 20 micron with a beta ratio of 200 at the most. They are far from what is needed for very long life. You can't just change your primary filter as it will cause a pressure drop tot he bearings effecting hydrodynamic film strength. Bypass is the way to circumvent this. It works, but only if properly designed.
 

jimdawg185

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Its not the psi that shears the oil, its the spool valves in the injectors on the 6.0. The poppet valves in 7.3s are much easier on the oil. I've had the luxury of seeing hundreds of oil analysis on both engines with just about every oil you can imagine though, so its like second nature for me to spout that info.
 

ja_cain

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Its not the psi that shears the oil, its the spool valves in the injectors on the 6.0. The poppet valves in 7.3s are much easier on the oil. I've had the luxury of seeing hundreds of oil analysis on both engines with just about every oil you can imagine though, so its like second nature for me to spout that info.
What oil would you recommend for the 7.3? Also, wouldn't increasing the overall volume of oil in the system increase the time it would take for the oil to shear down significantly? I agree that dirt and other insolubles are more detrimental to machines than some of the other things that people get hung up on. What lab do you use for your uos and voa's? Thanks for your insight.
 

ToMang07

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I run this huge Donaldson filter with Amsoil at 12k intervals. UOAs done by Blackstone. Great so far and I only change the oil once a year.

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94.5 Stroker

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My dad is currently running a bypass filter on his t6 with a cat in it. Its been on there since 05 when he got the truck. Since then he has put over a million miles on it with no major failures. It gets the bypass changed every 10k miles which is about 2-3 weeks. The primary filter gets changed every 30k. At every interval a sample is sent in for a analysis. The oil cooler failed thus causing an oil change and at that point we determined he had to have close to 175k on an oil change. Now mind you that every time the bypass gets changed two gallons of fresh oil goes back in.
 

ja_cain

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Would you mind posting your blackstone? I know which filter you are talking about and it is huge. Haven't run one yet.
 

ja_cain

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My dad is currently running a bypass filter on his t6 with a cat in it. Its been on there since 05 when he got the truck. Since then he has put over a million miles on it with no major failures. It gets the bypass changed every 10k miles which is about 2-3 weeks. The primary filter gets changed every 30k. At every interval a sample is sent in for a analysis. The oil cooler failed thus causing an oil change and at that point we determined he had to have close to 175k on an oil change. Now mind you that every time the bypass gets changed two gallons of fresh oil goes back in.
Does he get the tan and tbn done also. I would be worried about the antioxidant capacity going to the crapper. That extra oil added every time you change the bypass is probably the key.
 

ToMang07

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ca1297

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Wow this is a little more in depth than I anticipated 😐, so it's safe to say it's worth the money if maintained correctly?


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ja_cain

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ToMang,

What oil were you running on the first analysis? It looks like it sheared down pretty good in just 3000 miles. The others look like they held up great but you had a couple 4 quart additions which would ultimately effect the viscosity number.
 
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jimdawg185

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You need a lab that measures soot. Soot artificially raises Vis, so you really can't depend on the Vis reported unless you know soot level.


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ja_cain

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You need a lab that measures soot. Soot artificially raises Vis, so you really can't depend on the Vis reported unless you know soot level.


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Good info. We have both a tga and an ftir at work. It would be cool to do my own soot analysis in parallel with a standard uoa.
 

jimdawg185

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Ive learned a lot from people that tried to extend drain intervals on cheap oil. They get mislead into thinking things are fine by incomplete data then end up having failures. It happened with a large fleet that tried to extend to 20k with one of my competitors. they had half their OTR trucks need rebuilds at 200k.
 

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