What is best fuel treatment to get water out of fuel tanks.

If you can see it is bad, dump it and refill with fresh. Not worth ruining a set of injectors.

 

At close to 4 bucks a gal why dump? Try waterwick or pig water hog you drop them in tank and it will draw water into to it used them years ago back in late 80's they do work. Used in trucks boats and off-road vehicles.

 

If it's water use Isopropyl Alcohol.

 

yep, alcohol be the cheapest.

why do you think you've got water in the fuel????

you notice every now and then when you get water in the fuel!!!!!!. what are you noticing????? cuz if your noticing it now and then. you are sure picking up a lot of water.

might be a problem with ecm. and not water.

 

You don't have to drain everything to get rid of the water. Do you have a water separator on the truck? Manual removal is best. Treatments tend to send the water through the injectors which can lead to tips blowing off. Treatments also render water separators ineffective.

 

Best thing is to draw the bad fuel / water out of the bottom of your tanks using a vacuum evacuator. Most repair shops have access to one. I've heard that it should be done as part of a yearly P.M. Water tends to seperate from diesel fuel and collect at the very bottom so by inserting the draw tube to the very bottom you can remove whatever water has collected down there. Certainly easier and more effective than trying to treat the fuel after it's too late. And pay special attention to the water seperator if you think there's water in the fuel. Emptying a little out way too often is much better than not emptying it enough. With water in fuel, a little prevention can go a long way.

 

Some water in the tank is one thing, but if it has changed colour and become milky, you should be dumping it. Sorry, the OP is changing the description from "water" to "bad" in the same post. Water in the fuel isn't "bad" fuel. I agree, proper water separators will correct this. When people say they have "bad" fuel, to me, that is fuel that is contaminated with something and simply adding even more chemicals to mix is not going to help you. I have changed 2 sets of injectors and 2 high pressure common rail fuel pumps so far this winter because of "bad" fuel. We did try to flush and run new clean fuel through it, but it was too late and damage was already done. In both cases the fuel was milky and what ever it was stayed in solution and did not settle. Fuel had an orange juice colour to it. We had to dump it.

 

I hope you're not one of those guys who squirt the water on your glass while you're fueling.