Diesel Snot, Here it is IN person.

Davehoos · 6th December 2012, 08:41 PM

Snot.

I often get this with diesel fire trucks but have come across it in petrol engine around over the years.normally when you find it in a petrol fuel tank the alloy fuel pump is N/S.

I got sick of it in or canter fire truck and over dosed it with some wynns in a rusted drum.I almost got home from the workshop when the filters clogged replacing fiters the fuel looked black and felt like ATF,it might have been better to dump the fuel but it was used by someother group for a few weeks and used a few tanks of fuel.i fitted new fiters---and all looks good.

Cold saw..this week i decided it needed a clean up.
ive had a magnet sitting on the liquid return gauze.
after cleaning whats on top deck i removed the panel to get the steel from inside the lubrication tank.
it felt like soap untill i hit the bit that felt like liver and offel.

it took some digging out as it was very liquid inside the skin.like burnt milk.

**Ralph1Malph** · 7th December 2012, 06:30 PM

Oki,
I have read this thread, googled, then wiki'ed and believe I now know the cause, symptoms and treatment of the nasty diesal bug.
However,
Where did it come from?

You see, we have only had commercial qty of diesal for give or take 100 yrs.
So, did we invent this bug? Is it naturally occuring in dino juice and refining doesn't kill it?

I mean who would invent a bug that feeds on diesal? What did this bug feed on before diesal?

Ralph

**Johnno1969** · 8th December 2012, 10:46 AM

I remember getting this in the fuel tank of my brother's Merc about fifteen years ago. I took out the tank and cleaned it out with metho, dried it in the sun, rinsed, repeated etc etc. To my knowledge it hasn't come back.

**Blknight.aus** · 8th December 2012, 05:01 PM

Originally Posted by Ralph1Malph

Oki,
I have read this thread, googled, then wiki'ed and believe I now know the cause, symptoms and treatment of the nasty diesal bug.
However,
Where did it come from?

You see, we have only had commercial qty of diesal for give or take 100 yrs.
So, did we invent this bug? Is it naturally occuring in dino juice and refining doesn't kill it?

I mean who would invent a bug that feeds on diesal? What did this bug feed on before diesal?

Ralph

Dunno, I've never heard of the diesal Bug, The diesel bug however is a naturally occuring beasty I suspect that is the post nectrotic amebic Genetic building block of the Dinosaur and if we left it alone long enough in the fuel tank of a shed class landrover it would eventually evolve into

**Hall** · 9th December 2012, 08:58 PM

Ok I`m up for it. So how long do you think it will take the diesel bug to evolve in to this beast ? How much diesel are we talking about ?

Another fuel that also turns nasty is straight veg oil or lard/ fat. To use the fuel you need to heat it to get it thin enough. So your fuel tank becomes on large warm petri dish. Grows a reddish thick gelly like algae. I have always believed using fuel from a servo that has high usage was a good thing. Even if it does not guarantee totally clean fuel. It would be to the servo`s benefit to keep it`s fuel clean as it has a high return for keeping diesel, were as a out of the way servo that rarely sells diesel would not be caring to much about the state of there fuel. Had once brought diesel from a servo that was not in a prominent place. Certainly new I had done the wrong thing.
Cheers Hall

**Ralph1Malph** · 10th December 2012, 05:03 PM

Originally Posted by Blknight.aus

Dunno, I've never heard of the diesal Bug, The diesel bug however is a naturally occuring beasty I suspect that is the post nectrotic amebic Genetic building block of the Dinosaur and if we left it alone long enough in the fuel tank of a shed class landrover it would eventually evolve into

Dear oh dear

As you say Dave, Rogets for spellymathings and ...never mind.
You don't actually know do you?

Ralph

**Blknight.aus** · 10th December 2012, 05:46 PM

the bug is naturally occurring.

What Is DIESEL BUG and BEST CURE

ignoring that its an ad page for a debug unit... the names of the most common infections are in there BUT clad barely gets a mention.

heres the BP PDF on the stuff.

**mattmac** · 25th October 2015, 08:26 PM

Hi dave - I've got the diesl bug in my perentie -twice in one week blocked little mesh filter inder lift pump-is it a big job to remove the tank to clean it out?

Originally Posted by Blknight.aus

these are the pics from the Fuel water seperator on the wifes car.

This is after I have already cleaned it out once and drained the tank to dry through the supply to the lift pump then refilled it with fresh diesel

Attachment 42626
looks like something out of the Californian kelp farms
Attachment 42627
One tankfull of fuels worth.

After this The tank was dropped, shoveled out washed with detergent, wiped out with disinfectant air dried and then refilled with snot killing antifungal agent the lines all removed and washed then blown out, the filter changed and the system reprimed.

The gooey snot looking stuff has a texture of Snot, the black stuff feels like the stuff that comes off of emery paper Imagine that getting past the fuel filters on your td5/pumu/tdv6/8.

up untill it cloged the outlet of the FWS the first time there was no loss of power from the vehicle.

Heres an easy check to see if youve got problems with it.
remove a fuel line the filter (you can do it to the filter as well but its designed to catch stuff so you'll get a false reading) drain it and then fill it out with white spirits, ULP or metho. let it sit for a minute then shake and drain into a glass. If you have small black particles come out with it and a jelly sitting on the bottom after the fuel evaporates your system is compromised.

**Blknight.aus** · 25th October 2015, 08:47 PM

depends on a few factors.

1. your definition of a big job
2. how much it decides to fight you.
3. If you're willing to have a crack at it by pulling the seat and getting at it while its in situe.

**mattmac** · 28th October 2015, 02:20 PM

Well decided to have a good look inside tank so removed seat /base which was easy enough- also wanted to check the connection on fuel sender as fuel gauge doesn't read properly -they seemed okay-i removed the sender and and pickup to have good look inside tank with torch-actually looked very clean in there- the mesh sock on end of pickup had already been removed so no issues with blockage there. Has actually been running okay(touch wood) since last lift pump filter clean out- maybe the chemtech stuff has done the job!

Originally Posted by Blknight.aus

depends on a few factors.

1. your definition of a big job
2. how much it decides to fight you.
3. If you're willing to have a crack at it by pulling the seat and getting at it while its in situe.

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