Remote bypass oil filtration

[dvldoc]

how about for 4D56 and 4M40, when you said combo filter, it doesnt have the dual filter right?

sir, i have a 4M40 motor, please expound. because we only change 1 oil filter everytime this is a very interesting topic


PS, do you plan to do a fuel filter study as well?

Yes the 4M40 has a combo filter, ie it has a full flow and bypass in one filter, also very common in the states.

example of course yours is not this big nore will it have the same media in it but it will be similar. You have two elements, a full flow section then a bypass section in one filter. As stated at the start of the thread bypass filtration is a mainstay for diesel engines.

Bypass / combo filter.


The 4M40 takes a Fleetguard LF3564

Physical Dimensions
BPV Setting 100 kPa (14.5 PSI)
Largest OD 106 mm (4.173 in)
Overall Height 136 mm (5.354 in)
Thread Size M26 X 1.5-6H INT
Primary Applications
MITSUBISHI MD069782 All Applications
Product Comments

* Combo style filter



As far as fuel filters that's pretty easy, you want 10 micron or better filtration. 15 micron is most OEM standards. You can get higher efficiency ones that go all the way down to 2 microns which will double your fuel systems life. You can't really add a 2 micron filter to a old school diesel because the lift pump might have issues flowing. New common rail is no issue you can add one in line with the stock pump.

You want less than 10 microns for a really good filter, Donaldson, Baldwin, Fleetguard and WIX all have these down to 2 microns.

On a diesel your fuel filter is just as important as the oil, Go cheap and you'll have problems.

Fuel filters are close to the oil filters in design as far as the filter media goes.