bypass oil filter, worth it?

[brillmtb]

I am thinking of going to a bypass system by amsoil," AMSOIL Ea By-Pass Filter ", then using amsoil even though it is much more than the delo I have been running and changing at extended intervals. I have had very good luck with amsoil (oil vs driving habits remain to be known) as I just replaced the governer solenoid at 175000 when some are telling me they go out as early as 50k. I attributed this to the lack of heat in my transmission as I seldom see temps above 175 degrees with my amsoil filled transmission and I see posts on this site indicating that this would be lower than expected especially pulling my artic fox 5th wheel (9000lbs) uphill.

what are your thoughts, just go with the delo every 3-5K as I have been although it is the CJ oil I think now and dosent my 03 like the CI better or go with the bypass and longer intervals?


thanks

 

[mfurrh55]

I run Amsoil and the ea-bypass filter, change my oil and filter every 15,000 miles and the bypass filter every other oil change,been running it since new, 125,000 on it, still runs like a champ, doesn't use any oil between changes

 

[BIGNASTY]

I run my oil just a tad longer, my truck sit's more now and I don't think that does the oil any good to help get rid of moisture if there is any? I run my oil to 8k and change it send in the oil filter and Bypass filter to a Pard that run's a lab he says that from what he sees the motor is in good shape and the filters are doing what I bought the bypass for and the extra for the Donaldson is worth it.

 

[AEdelheit]

Most the trucks ive seen with high miles dont have bypass oil filters, they get driven, serviced around 8k and driven some more. There is no negatives to a bypass filter but I dont think its necessary and will not help if a Injector or dust takes out the engine which ive seen far more times then bad oil taking out rings or bearings

 

[ColemanR]

By pass filters have been used for years in big trucks theres a reason. I run a FS-2500 the differance in my oil is crazy before it was black before I started my truck while it is still black I can actually wash it off with hand cleaner before my hands would have oil stains for days. The motor in my truck died at 160k due to a injector failure at that time i put a Fass fuel system on it and the FS-2500 I changed the injectors out at 350K( working great just got nervous) the engine is at 550K use's 2qt of Delo in 15K I change oil and the factory filter at about 12K depending on my trips. I change the by-pass filter about every 25K and for the ones that hate K&N filters its had one on it for 550K.

 

[CKelley1]

several things, first your 03 does not need a by pass filter as bad as a 04.5 that produces seven times more carbon in the oil. second for all practical purposes there is no difference in life between dino and synthetic. some of my trucks have near or over 1,000,000 on them with delo and still not use oil. third you are changing oil way to soon, once you do all of your mods ( each mod may change drain interval ) for your 03 go 15,000 miles and have the oil analyzed to see how much further to extend it. fourth I use home made bypass filters on my 03's using filters for my big rigs but the same applies to the amsoil do NOT change the bypass filter at oil change time unless it no longer flows oil, filters have a end of life rating, it is not uncommon to see a two times better end of life rating than a brand new filter. fifth stick with the ci4+ oil. if you get the amsoil kit I think it is bmk21 get the eab 110 filter and mount it on the frame or bed, use the hose supplied for the return and get a hydraulic hose made up for feed. there is better main filters out there also. switch to a Baldwin BD7317 and no it is not in any cross reference chart. engine life is directly proportion to air cleaner efficiency, not oil. it is important to add better fuel filtering to your 03.
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[nikwave]

use the hose supplied for the return and get a hydraulic hose made up for feed. there is better main filters out there also. switch to a Baldwin BD7317 and no it is not in any cross reference chart. engine life is directly proportion to air cleaner efficiency, not oil. it is important to add better fuel filtering to your 03.

CKelley:why is that you say to use different hoses on return hose and supply hose,is it for the pulsating flow and vibrations on the hose? i installed the amsoil bypass under the passenger on the frame.at first i zip tied the hoses touching the fenderwell and the noise was terrible,then re-route them and no more noise.now 40 seconds +- after start up the oil pressure goes down enough to trigger the "check gauges" light ,just for a second or two then goes back to normal.is there anything i can do to avoid this?

 

[mfurrh55]

I routed mine from the original oil filter over the radiator support to the by-pass filter which i mounted on the motor in front of the intake ,then to the back of the motor and up to the filler cap, i haven't had any issues with it and it has been on there for over 100k, Monte

 

[mfurrh55]

View attachment 87560Here is a picture of it,Monte

 

[CKelley1]

the kit usually does not have enough hose with if you place the filter further back on the frame or bed. if you look at 55's setup it is in the way of everything and I do not think the eab110 filter will fit. keep your engine compartment clutter to a minimum. there is a 0.032 orifice in the threaded portion of the filter mount to restrict the volume of oil that flows through the filter to eliminate this. amsoil stuff is not very well engineered or built. Donaldson makes the filter so your ok there. but we have had to redo or replace nearly everything we got from them, I have a pile of the blue caps like in 55's pix every single one we bought seeps oil. on the 04.5 up we drill a hole between the front two valve cover bolts and return the oil there. for the pressure lost I think you have a sloppy, larger orifice if I remember correctly it is brass 1/4" npt, with a hex nut. remove the head and remove the orifice and peen it closed a little bit
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[mfurrh55]

Mine doesn't get in the way of anything,

 

[CKelley1]

mfurrh did not mean to offend but have worked on trucks with your setup. it makes me so mad trying to work on the cp3 , eb pump, or other things in that area that I have jerked them off and remounted them elsewhere. I think one of my employees was trying to replace the 100 to a 110, if I remember correctly it would not fit clearance wise. the same for the ones mounting the 2 micron filters here, that is the dumbest thing you can do.

 

[mfurrh55]

No problem, just haven't had to work on anything in that area YET, Did get rid of the vacuum pump and put an electric one on the other side of the motor

 

[AH64ID]

Lots of folks have issues with the amsoil cap sealing, but mine has always been good. No seep, and no leaks in nearly 6 years.

The tapping of the cover works well, but that location will only work on 06-07's, the 03-05 have a different style valve cover and would need the aluminum portion drilled and tapped.