water condension in diesel fuel tanks

[watty]

A question for the diesel experts out there. Is it acceptable to put metho in a plastic diesel fuel tank (common rail injection) to disperse a very small volume of water?

[GUtripper]

Its a common thing in older diesels I guess.
Personally in a late model CRD Id use a proper diesel additive. Most of them will assist in breaking down the water.
Is it just condensation, or some crap fuel from an old fuel servo?
Changed fuel filters?

[Shadow]

I would let your water trap do its job and check it regularly.

[date]

This is a good question... I would rather mop up the water at the tank, rather than let it come through and [hopefully] let it get caught by the fuel filter.

The issue is - what is a good mopping agent? Will the mopped up water plus agent go through the filter and then do some damage to the fuel pump?

[CRUZAAMAD]

Id just get a water seperator off donaldson..
something like 140 bucks or something stupidly cheap...

that was for my 2h diesel.
but he said when I asked about updating to the new v8 cruiser.
that same filter will do the same job..

funny that, my car must have heard me wanting to update..
and decided to lock me out...
broke the door handle...

[watty]

Fitting an extra water trap in common rail injection systems is not as straight forward as some people seem to think. If your system has a pusher pump in the tank all is good, but if the system has a sucker pump combined with the high pressure pump it can be over loaded and fail,big $'s. Not changing fuel filters regularly creates the same problem. The filter in my system has a sensor in its base witch is very sensitive. It only requires about half a teaspoon or less of water to trigger the light this then reduces engine output. This all good, but system must be absolutely free of water at all times so condensation can be a problem.

[old lux]

Don't put anything in the tank let the filter /filters do there job... Been in the industries a few years now(as a fuel specialist)