whats the best way to clean out a petrol tank. took it off my van today had about 3 litters of 15 year old fuel nice and black. does any body have a trix to clean out tank cheers

Depends how far you want to go.
I've heard of sand/gravel and a good shake, then use a fuel tank inner coating.

The last tank I cleaned out I used around 5 litres of vinegar, slosh it around a bit let sit for a couple of hours and repeat.
Cheers Pete

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A recent study found the average Aussie walks about 900 miles a year
Another study found Aussies drink, on average, 22 gallons of alcohol a year
That means, on average, Australians get about 41 miles per gallon

Kind of makes you proud to be an AUSSIE

viniger sounds the go ill give it a go tomorrow and let you no how i go thanks guys

In the past I've used washed gravel , just the size you see used on the road but wash it in a bucket first so the sand and giner grit falls to the bottom and you just use 5 to 10 mm gravel . I put that in with some water and swish it around to get the loose corrosion off , then rinse it out well . Vinegar sounds a good idea too as it is a weak acid and will clean the smaller crud off .

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I throw my fuel tanks in the Caustic,,, cleans em' up reall nice

If you don't have have a caustic tank,, don't worry,, just find a Radiator reconditioner and ask them their tank for you,,, they may not use caustic but it will still get the same result I don't think they'd charge more than $60 for it (could be worng) and I reckon its a bit safer than throwing a handfull of rocks in you tank and crossing your fingers that you can get them all out...

Hope that helps

Just make sure that i) they test it and ii) the outlet is still not blocked up.

cheers ill see if any body can do it for me and let you no how i go

I used gravel first, shook it around.

Then I then poured a rust treatment in and sloshed it around for a bit. let it settle and then rinse with water and dry with my air compressor.

You stick a filter on it anyway

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POR do a nice kit that cleans the tank and then leaves a protective coating on the inside

It is quite obvious when you have not got all of them out. They go clang clang clang when you shake the tank.

Its when something goes thud, thud, thud that makes you think what on earth is that??? Turned out to be a little Bert (as in Bert and Ernie) finger doll.

Or the insides of 3 locking fuel caps .... I think the previous owner had a short fuse and broke the caps off when he couldn't find the key (or he lived in a dodgy area ) .

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Yep, and after 20min going clang clang clang I start going you useless F****** piece of Sh*t M**** F***** how did I let that twat talk me into to this?

To each theier own, I just like chemically cleaning.

EDIT---> Nahh, lets face it,,, I just like looking for excuses to throw stuf in "The Dip"

all done come up smick took it to radiator place $50 cash nice day thanks for your help and idea's