What to do with 4 year old red diesel, that has fuel bug?

Thanks for all the replies.

Much wisdom to ponder there.

My personal favourite, being a tight bastard, is to filter, treat, refilter and use, though, as pvb, Halo and dutydog, wisely suggest, that could be the road to regrets, annoyance and lots of swearing!
I bought some 5 micron filter bags years ago, I cut them up in to circles to fit in a funnel. Its that good that it filtered water out of some contaminated petrol I had. You are wrlxome to a circle for the price of the postage.
 
The usual recommendation is that you dose it into your car fuel system, the more high spec the car the better the engine management system is at burning contaminated fuels and the more robust the engine is. I regularly dose my Bugatti Chiron fuel with whatever dregs I pick up at the marina skip. Saves a small fortune of fuel bills as well! ;)
 
The usual recommendation is that you dose it into your car fuel system, the more high spec the car the better the engine management system is at burning contaminated fuels and the more robust the engine is. I regularly dose my Bugatti Chiron fuel with whatever dregs I pick up at the marina skip. Saves a small fortune of fuel bills as well! ;)

Hey ..... that sounds so obvious now you point it out.

I'll give it a try tomorrow.
 
Our old motor boat has been ashore, ignored, for 4 years now.

The fuel seems to have bug (ie quite a lot of black gunge in the first filters, and the stuff from the bottom of the tanks has an unpleasant, pungent smell).

I've drained both tanks down, and will tomorrow set about a thorough clean of the tanks' innards.

Hmmmmm ..... so .......what should I do with the four year old red diesel?

So far, I've allowed it to settle in various containers.

Options seem to be:

- chuck it away (sorry, I mean, dispose of it sensibly and responsibly) and replace (and then make sure that the boat gets some use)

- skim off the clean looking top stuff, discard the mucky bottom layer

- a seriously heavy dosing of the whole lot, with something like Marine 16 diesel treatment, then re-use

- pay to have it professionally treated

Thanks for any tips.
Dubious fuel is just that. Strongly urge it is not used for propulsion; do you really want to wonder as you trip along whether the engine is quite as perky as it should be? Dispose carefully and move on.

PWG
 
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