Any way to tell if fuel has gotten water in it?
Any way to tell if fuel has gotten water in it?
Author
Discussion

jon-

Original Poster:

16,534 posts

245 months

Thursday 23rd June 2011
quotequote all
I have 65 litres of vpower from May that unfortunately has sat with a semi open spout (long story).

Is there anyway of telling whether the rain has gotten in?

Gallen

2,166 posts

284 months

Thursday 23rd June 2011
quotequote all
Chuck a match in. If it's water, it'll go out.








[ETA: don't actually do this]

Mr MXT

7,786 posts

312 months

Thursday 23rd June 2011
quotequote all
jon- said:
I have 65 litres of vpower from May that unfortunately has sat with a semi open spout (long story).

Is there anyway of telling whether the rain has gotten in?
Pour a sample into a clear container. Have a look at it, it should be clear and bright. If there is any cloudiness to it, it is contaminated with water.

Mr Happy

5,893 posts

249 months

Thursday 23rd June 2011
quotequote all
fuel is lighter than water, so if you've got more than 65 litres in there, then water will have gotten in.

If you syphon some of it into a clear container and let it settle, the water will be at the bottom if it's contaminated.

smileymikey

1,446 posts

255 months

Thursday 23rd June 2011
quotequote all
Naah go on...give it a punt, I hear the nurses in the burns unit are absolute fox's!!

daveparry

988 posts

229 months

Thursday 23rd June 2011
quotequote all
You should google "water finding paste" seriously!

HD Adam

5,155 posts

213 months

Thursday 23rd June 2011
quotequote all
Water is heavier than petrol so it will be at the bottom of the barrel.

If the petrol has any Ethanol content though, that will have absorbed the water.

peeves

390 posts

192 months

Thursday 23rd June 2011
quotequote all
Gallen said:
Chuck a match in. If it's water, it'll go out.








[ETA: don't actually do this]
LOL

KieronGSi

1,114 posts

233 months

Thursday 23rd June 2011
quotequote all
daveparry said:
You should google "water finding paste" seriously!
Or water detection tablets.

Mr MXT

7,786 posts

312 months

Thursday 23rd June 2011
quotequote all
HD Adam said:
Water is heavier than petrol so it will be at the bottom of the barrel.

If the petrol has any Ethanol content though, that will have absorbed the water.
Correct, hence you cant just see if its separated.

I'm not 100% sure if Vpower has an Ethanol content though, I suspect it hasn't.

jon-

Original Poster:

16,534 posts

245 months

Thursday 23rd June 2011
quotequote all
Thanks for all the replies.

If water has got in, it won't be much. 1-2 litres tops, but still more than enough to damage an engine I suspect.

Will drain some out and see what the deal is with colour. If all else fails I'll get one of these:



probably as much use as water detection tablets hehe

Jonny_693

5,493 posts

205 months

Thursday 23rd June 2011
quotequote all
What's 'gotten water'?

jagracer

8,248 posts

265 months

Thursday 23rd June 2011
quotequote all
Jonny_693 said:
What's 'gotten water'?
You just beat me to it.

hemibum

833 posts

246 months

Thursday 23rd June 2011
quotequote all
Stick it on a stove and boil the water off.tongue out Seriously, this is a valid, if slightly risky solution. Don't suppose you have an old illegal distillation unit kicking around do you?

Remember years ago watching a documentary about the British Antarctic Expedition where their fuel for their Snowcats had adsorbed water. They decanted the petrol into tea urns, stuck them on the gas range and boiled the water off. Remember, water has a lower boiling point than petrol.

If it all ends in tears and burnt houses, you never read it here.smokin

Edited by hemibum on Thursday 23 June 19:27


Edited by hemibum on Thursday 23 June 19:28

jsg612

571 posts

197 months

Thursday 23rd June 2011
quotequote all
Chuck a bottle of this in... http://www.youtube.com/watch?v=lzdLWMdT0LQ

Edit: oh, and err, shake it all about. smile

Edited by jsg612 on Thursday 23 June 19:27

anonymous-user

83 months

Thursday 23rd June 2011
quotequote all
Every time I fly my forty year old crate I have to drain a sample from the tanks to check if there's water in the fuel, but there are little valves for this underneath the wings, which most cars don't have. I have never found any water in the tanks, but if you don't check, and there is water in the fuel, this tends to make itself known as you climb out under full power, with a primary school and puppy hospital directly ahead of you.

VeeFour

3,339 posts

191 months

Thursday 23rd June 2011
quotequote all
hemibum said:
Stick it on a stove and boil the water off.tongue out Seriously, this is a valid, if slightly risky solution. Don't suppose you have an old illegal distillation unit kicking around do you?

Remember years ago watching a documentary about the British Antarctic Expedition where their fuel for their Snowcats had adsorbed water. They decanted the petrol into tea urns, stuck them on the gas range and boiled the water off. Remember, water has a lower boiling point than petrol.

If it all ends in tears and burnt houses, you never read it here.smokin
Won't work, as petrol has a boiling point of circa 95 degrees.

jagracer

8,248 posts

265 months

Thursday 23rd June 2011
quotequote all
Syphon the top 55 litres off and throw the rest away.

nottyash

4,671 posts

224 months

Thursday 23rd June 2011
quotequote all
Water finding paste. Turns red if water present.Not seen it in shops mind.
Also there is an electric "sceaming handbag" that will beep if you put the sensor in fuel with water in it. Again, Ive never seen them in shops. I used them at work.

I know you can take a sample of diesel. let it stand and any water will seperate, not sure about petrol as Ive never done that.

http://www.petrochemsuppliesgs.com/paste.html




Edited by nottyash on Thursday 23 June 19:36

snuffle

1,587 posts

211 months

Thursday 23rd June 2011
quotequote all
Push a sponge into the container, sponge will absorb water,
pull sponge out,
hey presto useable petrol .