Bypass Filter?

[BillGotthelf]

I have been running bypass filter in my heavy equipment since 1994. We had one Ford L-8000 with 513,000 miles on it when we sold it. It had 498,000 miles on the oil in the engine(Delo400). Oil tests said the oil was fine. I still see the truck running around this area and we sold it 4 years ago. I just tore down my 99 and after removing the pan and checking the bearings we were very happy. Evan though I had built the truck up to about 460 hp and did not baby it for the past 110,000 miles the pan had no sludge and the best part the bearings were polished to a shiny reflective finish with no wear. The mechanic that helped me tear it apart has a 96CTD dualie and he's installing a bypass filter after seeing what mine did. I ran amsoil series 3000 diesel oil and had it in the engine for the past 95,000 miles without changing it. The company we have used and are extremely happy with is www.puradyne.com . The big difference between them and everyone else is that they have a patented heating element that removes water, antifreeze and diesel fuel that gets in the oil. They also limit the amount of oil that passes thru the filter to 6 gallons an hour to filter down to less than 1 micron. The particiles left don't wear an engine out they polish parts to an even better fit. Never would have believe it if I didn't see it with my own eyes.

 

[Rman]

For anyone looking for info on the puradyn filters it's at www.puradyn.com, the previous URL was faulty and took me about 10 minutes of beating my monitor to figure it out. Thought i'd pass it on to speed up someones research!

 

[JCyrbok]

I have never had a dealer service rep say a bad thing about my by pass. One tech even said it was a good addition, but like most things in life there are good dealers and bad ( that will use any excuse not to do the work).



J-

 

[TBrennan]

That Puradyn system looked promising, but apparently Fleetguard wasn't impressed. Puradyn's Rebuttal to Fleetguards Analysis



I didn't try to find the actual Fleetguard report, but if they don't like it, it gives me pause even if they are a competitor.

 

[Elk Man]

AMSOILMAN



Here's my questions.



1) With the BMK-11 installed can you still use the Cummings filter?



2) What is the recommanded mileage/calender time for changing both filters or do you go by oil color?

 

[BillGotthelf]

The aftermarket or bypass filter companies will not tell you to alter the factories recommendations for the interval (time or miles) for changing the factory filter. To do so it might open them to liability. Also they strongly suggest that you do continuous oil tests to ascertain the bypass filter change intervals. With our dump trucks (8. 3 cummins) we could go 18-20,000 miles between bypass filter changes. On my CTD trucks we go 15,000 miles for the bypass and once a year (fleetguard microglass) for the factory filter. I continue to get oil analysis done and take a sample right before I change bypass filter. You cannot go by color of oil to change anything. Ask ant mechanic if they have ever seen the bearings on the crankshaft so shiny that you can see youself in them after 110,000 miles with no wear at all.

 

[amsoilman]

Elk Man,



Yes, you can use the Cummin's (Fleetgaurd) filter along with the BMK-11 (Single By-pass Mount). The BMK-15 (Dual-Remote) can not use the Cummins (Fleetgaurd) filter.



Amsoil recommends when using OEM filters, to change them at the manufactures recommended filter change interval.



ALL Amsoil SDF (Full-Flow) filters are to be changed at least every 6 Months regardless of miles driven. The By-Pass filter elements are changed yearly, and ALL drain intervals can be extended (with analysis) indefinately by using the By-pass oil filtration.



Hope this helps,



Wayne

amsoilman

 

[Elk Man]

BYPASS FILTER

AMSOILMAN



Thanks for your reply.



My objective is to remove soot. I am currently using synthetic oil. Yearly mileage is about 7500 towing heavy RV. I am also having oil samples done. What is the best Amsoil filter to use and will it keep the oil clear and clean?

 

[amsoilman]

ELKMAN,

I have been using the Amsoil By-pass oil filtration system, on my lsat 3 CTD trucks, with great results, even with the extended drain intervals that I have been able to do with this system installed.

Soot is very, very small particals, less than . 25 "Micron" in size. When these particles Aglomerate (attach them selves to one another) they can become larger and will then become a problem.



On my last CTD pickup, with over 100,000 miles without an oil drain, my soot level was less than 1 percent. I am told by the oil analysis lab which I use, that anything less than 3 percent is "NORMAL". This figure would be for a "NORMAL" oil drain interval. Bear in mind, mine was <1 percent with over 100,000 miles without dropping the oil.



Was the oil crystel clear? NO, it was not. The soot in oil will make the oil dark in color, but one can not tell the condition of the oil by the color. I could hold the dipstick on a vertical incline, and I could see the markings under the oil with the sun shinning on the dipstick, but the oil was not crystel clear as I said.



The Amsoil by-pass elements will remove particals as small as 1/2 micron, but the oil will not be crystel clear after one puts 10-15,000 miles on the oil. These filters are made from a wood fiber, and not paper.



If a person were to change the elements, every 3-4,000 miles, then the oil would stay crystel clear over time.





Hopes this helps.



Wayne

amsoilman

 

[draymorris]

Dual Unit

Wayne



Regarding my BMK 15 - does all the oil flowing through the engine pass through the filter, or is the filter mount itself a bypass filter. In other words, if flow through the filter housing was completely stop, would the engine lose its oil circulation?

 

[WadePatton]

I must say again that the GCF did indeed keep Lawrence Russell's oil sparkly clean (golden yaller) for 10,000 miles on Rotella. The ONLY reason he dumped that oil was to change to Amsoil.



Now his Amsoil has 4 or 5k on it--sparkly clean. His truck is a 96 with 170k miles and has #10 plate and GSK.



ON the flow thing. I don't know about the Amsoil filter setup, but the systems that leave the OEM filter in it's stock location DO NOT interrupt the OEM flow of oil. They simply borrow some of it.



HTH

 

[amsoilman]

draymorris,

The BMK-15 mount has the by-pass built into the mount. However, ALL the oil will be circulating ftom the engine pump and back to the engine through the "Full Flow" filter, anytime the engine is running. There is NO POSSIBLE WAY the by-pass located in the mount could stop the flow of oil!





Hope this helps,



Wayne

amsoilman

 

[draymorris]

Thanks Wayne



Just curious. Next question - these 3G Cummins have oil injectors below the pistons. If the oil pressure is lowered due to my filter unit, will it affect the oil spraying below the pistons?

 

[Vaughn MacKenzie]

Wayne, some questions. . . (I've asked you a lot over time!)



1) What are the main advantages of a dual bypass system over a single bypass in terms of filtering performance?

2) What's the greatest disadvantage? (Particularly in terms of oil circulation and pressure through the engine)

3) If everything runs in parallel to the engine on a dual bypass, about what percentage of oil volume runs through the filters?

4) How does a single bypass compare to a dual system in terms of filtering capacity (mass of contaminants removal), rate (how fast it can remove it) and micron level (how small of particles)? (don't need specific numbers).

5) Can indefinite oil change intervals (hundreds of thousands of miles) be utilized with single bypass systems & sampling?



Like I mentioned previously the stock oil pump kicks out 17 gallons per minute, but I don't know what RPM that's at, and certainly a lot of the time oil is bled off internally (not all 17 GPM circulates through the oiling system all the time). My concern with dual bypass systems, if they run in parallel, that too much oil runs in parallel and reduces the pressure/flow through the engine. I don't know if that's a realistic concern.



I do want to do bypass at around 60,000 miles and plan on the single unless Wayne or someone convinces me there's a significant advantage to going dual.



Vaughn

 

[amsoilman]

Vaughn,

I will try to answer your questions with the following rather than answer each question separately.



In the case of the BMK-15 (duel-remote). This mount allows both the “full-Flow” and By-pass elements to be located on the same mount. This is the biggest advantage!



All of the oil is circulated at a high flow rate and “Normal” oil pressure through the duel-remote mount, going through the “Full-Flow” filter element and back to the engine. Along the way, some of the oil is circulated through the by-pass element, as there is a channel built inside the mount. Now the by-pass element itself has a very restrictive filter media, so by design, it will not flow oil through it very easy. This allows the oil to flow through the by-pass element very slowly, about 6 quarts every five minutes with a 40-psi force pushing it. (10-15 % of flow)



Eventually, all the oil will run through the by-pass element, and the oil will stay analytically clean.



Now for the BMK-11. (Single remote) This mount only allows for one filter element, and that of course is the by-pass element. The “Full-Flow” element remains in the stock OEM position. Oil is fed to this mount from any oil pressure source. Typically, on the Dodge this is the 1/8th NPT port on the top of the OEM filter mount. This oil line feed is of high pressure, and is directed to the in port of the mount.



Oil under pressure is then fed through the same dense restrictive filter media within the by-pass element. As the oil goes through the by-pass element, it will exit through a very restrictive orifice and return back to the engine under very little pressure and flow due to this . 032 orifice. This orifice does two things; it keeps the oil pressure up, and will only allow about 6 quarts of oil every 5 minutes to go through it. (about 10-15% of flow) Oil is returned back to the oil pan anywhere one can find a good return, such as the valve cover, oil fill cap, or oil pan is just fine. I use the oil “Fill Cap”, by modifying the cap.



As I said earlier, the biggest advantage of the duel-remote is the fact that both filter elements are mounted in the same place.

The bottom line is that both systems will filter the oil the same.



The Amsoil by-pass elements, (BE-90, BE-100, and BE-110) have a 98. 6 % efficiency at 3 Micron, and 99. 8 at 5 Micron. The BE-100, is normally used on the CTD applications, however the BE-110 could also be used. The BE-90 is to small for the oil capacity of the CTD. Each of these by-pass elements are identical other than the length of the media within.



I have seen several CTD applications with well over 100,000 miles on the oil utilizing oil analysis with these by-pass systems installed, including my own.



Hope this information is helpful to you.



Wayne

amsoilman

 

[JHoegner]

Hey guys, I'm pretty new to the TDR and would like to say that it has helped me a considerable amount in working on and making improvements to my truck. This site is a wealth of information. I first learned about the KDP here, promptly ordered a kit and fixed it. The pin was seated when I looked in the drillhole. *whew*



I've done quite a bit of reading on oil bypass systems and want to install one. I would like to know, if anyone has any experience with Oilguard bypass filters, Racor spin on trany filter kits and Racor Fuel Filter kits?



Thanks



John

 

[Steve Campbell]

JHoegner....welcome aboard

I am personally using the Oilguard bypass on my CTD. I have used Racor products on OTR trucks with great success. There are a few members on this site who could give you first hand knowledge about Racor products on the CTD.



I am very happy with the Oilguard bypass and would recommend it to just about anyone.

 

[Vaughn MacKenzie]

Thanks Wayne, for some reason I was thinking there was a more of a difference between the two setups in how filtering was accomplished, but with that I'm definitely going with the single bypass.



Vaughn

 

[_Hyde]

Anybody doing the Fleetguard bypass using their filter head and LF777 element?



Darren

 

[JHoegner]

Thanks for the info. After it's installed, has a few KM's on it and I have an oil analysis done, I'll post the results from it and a few pictures.