Best diesel fuel filter system

I second everything Ross has said. Spot on.

I have the Water Watch system and it is fitted under my tray near the fuel tanks. Leaves plenty of line before the OEM filter.


Serendipity

Thanks everyone for your answers and advice.Ross M can you PM me with the details of what filter you use etc please....thank Rob

NTVRX
Not being a paid up member, I don't think we are able to PM each other.
If on another forum too that may be possible.
Maybe if you wish to post your email I can send something to you .

I use a Donaldson P902976 filter kit, 11 micron pre filter, after the tank and before the OE filter. It doesn't warn me of water though but the original restriction sensor will still work if the new one is placed there. It then works to detect restriction in either filter. Mine is fitted to a Dmax.

Mine isn't the finest filter around and there are others.

Cost effective and easy to check and drain if needed, you must do the water checking. Soon a water sensor will be available I am led to believe.
You didn't mention which vehicle it is going onto so there may be some extra info required to best suit your purpose.

Hope this helps the decision process.

Cheers
Ross M

Hi ross, have been thinking along these lines also and I also have a Dmax . interested in your system, could you send me some details etc please.
bassee@bigpond.com

Thanks very much for your advice everyone......Does anyone use a 30 micron Berimah Diesel Fliter...pre OE Filter?

NTVRX
30 micron filters were fairly standard issue for conventional diesel injection systems.
For a CRD engine it is more a class of blowfly filter rather than something which will do a reasonable job of filtering when used as a pre filter to the OE filter unit.
The 30 micron is going to pass nearly all sizes under 30 micron and until it maybe begins to block up, then it will begin to work.
If your main contaminant size is approx eg 15micron then the 30 isn't filtering it and all will collect on the OE filter which is usually around 5 micron. This will suddenly overload the OE filter quickly if there is a problem.
Any smaller than 15micron ie. 10 or 10 9 8 etc will serve to remove much of the contaminants and provide a graduated collection of crap and not suddenly hit the OE with a full "COP THIS" load of rubbish.

30 isn't really a filter for CRD. It will work but only as mentioned above.

I had a pre 30 on an older Landcruiser and it worked for than but I wouldn't consider that size for a CRD.

Nothing is perfect. Depending on your engine size the flow rate reserve capacity of the filter is critical so it should be able to pass around 3 or 4 times the normal flow rate so no restriction to flow is produced, and only when it begins to block will it restrict and the OE will then warn you. When it does one or both of the filters will be pretty blocked. Dmax around 35litres/ hour/ New pre filter should be 120LPH or more.
The smaller the micron size you select, the larger the filters internal area has to be so it can filter and provide the flow rate at about 6 to 7 psi.

Cheers
Ross M

Hi all, I have the 150 prado, which has the water watch, but I checked in the service manual, and am lead to believe, that when serviced by Toyota, they never actually change the fuel filter, under the bonnet,only drain it. Think they only change it when the light comes on the dash, either from blocking up, or water. I pay the extra to get it changed, just a bit more piece of mind. Cheers. Odog

Odog. Your 150 Prado has a primary filter up under the rear of the vehicle. This is the one that should be replaced regularly. It is above the tailshaft, just forward of the front fuel tank. Regards,Bob.

Cheers bob, that one they do every second service, it is in the service scedual. I like to do the one under the bonnet every second service at least, am I paranoid? I don't know, to many horror stories going around. Cheers. Odog

Hi Mark
The general consensus among the LCOOL mob is 2micron is restrictive on fuel flow and could damage the pump over a period of time. Especially as the filter becomes more restricted as it does it's job.