Extra fuel filter

I think it would be a great idea, but not down at the tank, up in the engine bay, a lot easier to see/replace.

There is a mob in Canberra that do extra/replacement filter systems, worth a yarn them.

Richard heaps of good info on fuel filters on the Land Cruiser's owners web site. Some people also use one of these- 'Mr Funnel Fuel Filter Funnel'.
Also, make sure your vehicle insurance will cover for contaminated fuel, not all companies do.
Also, carry a spare fuel filter as they are very easy to change yourself.
Kevin

The biggest killer of motors is water in the fuel, so i have fitted a waterwatch system from responsive engineering, have a search on your browser check it out,
Imho the best insurance.
no affilliation with em'

I have heard that depending on the flow rate of these aftermarket add on fuel filters the extra strain on the fuel pump can cause it to fail. In my case around $6000.00 worth to fix. Also warranty would probably be void. I would do my research before deciding. Removing water with Mr Funnel into a Jerry can and transferring into vehicle seems to me to be a safer option.

Cheers.

Whatever you put on, put it between the tank and original filter or you will void the warranty.

410
Just a small shot gun eh?

The issue of additional filters. My views.
Firstly, yours is a CRD engine and will have a cooler or system to keep the fuel cool which is being delivered to the engine. DON'T fit a fuel filter in the engine bay because it will be heated by the underbonnet temp and begin to negate the essential cooling already being provided..
Some WATER watch systems do watch quite well but don't remove any water from the fuel, you then have to act.
Yes, You can fit a filter and it is best between the tank and the OE filter of you vehicle.
This leaves the OE filter as the main filter the extra one as a pre filter/dewaterer if you choose one of those.
Water funnels, while good for obvious water which you can see, don't in any way filter out emulsified water which is usually the problem. The large lumps, if present, will generally sit in the bottom of the filter housing and aren't a problem until it gets to the 'too much' level. Emulsified water is worse cos it is highly mobile with the fuel flow.
Otherwise nearly every diesel with a drop of visible H2O in the bottom of it's filter would be stopped on the side of the road. NOT SO.

You should fit a filter which dewaters and also filters out the crap and generally the finer the micron size ie 5 or less is good to have. A finer filter will block or restrict more frequently so extra filters have to be carried. Sometimes for an engine which can drink faster, the flow rate of the additional filter is also and issue as is, it's designed ability to provide the necessary flow with little or no restriction.
Sometimes, two filters side by side ie plumbed in parallel, is required so flow rate and restriction in the event of partial contamination doesn't cause cavitation and starvation of your high pressure pump. If it does experience starvation it will damage it.

Mine is a Donaldson P902976 low flow filter kit on 3litre with a flow rate of around 120litre/hr, the vehicle requires 30-40lph flow rate so is ok. Your system will possibly flow greater than that and the twin or a larger capacity filter will be required.
Mine is as a pre filter and still retains the OE as the maker wants it with restriction warning device/sensor still active.

If the filter, mine doesn't, have an electronic warning of "presence of water" you have to be the checking/deciding component in the performance of your filter.
If mounted underneath, you check it along with other items each day before you move off.

If you have one fitted, contaminate it with water prior to fuelling it, so you know the system warns you.
Don't just trust it to do so. You might just drive to mechanical oblivion totally unaware of the disaster happening under your bonnet.
Evaluate this, my views will be regarded as rubbish by many, but I see and hear of so many who have had trouble. Contact Donaldson or other filter people and ask for their recommendation for your vehicle.

Cheers
Ross M

Richard I had a v8 cruiser for several years now and thought exactly what you are thinking, I have had my warning light come on now a few times mainly when heavy on the foot so I started changing Toyota filter every 10k no more problems for sake of $40 and ten minutes to change just carry a couple of spare filters don't spend a fortune the problem is Toyota leaves fuel filters too long between changes regards Alan.

I fitted a Stanadyne FM100 filter/water separator to my VDJ78 before the factory filter.
You can buy a complete kit from Diesel Care including the filter, bracket,hoses etc.
There is plenty of information on this unit on LCool including a good video showing how to do it, not a hard job.

Cheers,
Rick