Strange green liquid

[flying banana]

I have green liquid dripping off the exhaust silencer. Bitter taste. Not coolant. Is it air con fluid maybe? Or is the silencer going funny inside with corrosion? Air con seems ok

 

[colintfcolintf]

I’ve seen fuel (Petrol) that has gone off that colour, but it can’t be that.

 

[Betsycalifornia]

my two Penneth, that’s the silencer causing that.

 

[flying banana]

my two Penneth, that’s the silencer causing that.

Yes I thought that. Very strange. Some sort of chemical corrosion? Can't see anything above it on the heat shields

 

[larrylamb]

Have you been in snow recently?

 

[Kev56]

Have you been in snow recently?

Made me laugh, if it was yellow.

 

[flying banana]

Have you been in snow recently?

yes but i have noticed it before so it's not the legendary yellow snow. anyway i ignored the rules and tasted it

 

[larrylamb]

Made me laugh, if it was yellow.

Wouldn't put anything past FB but it's a genuine question.

 

[larrylamb]

yes but i have noticed it before so it's not the legendary yellow snow. anyway i ignored the rules and tasted it

Had a quick look on the old tinternet and found this.

95 per cent of the exhaust systems built today are made up of iron alloy and galvanized steel. Exhaust pipes are made of either iron or stainless steel. Heat shields are made of galvanized steel. Here's where Mr. Podominocov would be giving me a gold star: galvanized steel uses zinc as a rust inhibiter.

Zinc, when hot and in the presence of iron and a catalyst, creates yellow zinc oxide in the form of crystals. The connection is the catalyst - salt water - or compacted snow with road salt mixed in. If the snow is able to touch the exhaust heat shields and the exhaust pipes at the same time, the chemical reaction between the two dissimilar metals creates the bright yellow crystals.
(see the June 18, 2010 blog for more).
As the hot exhaust pipe(s) melt the snow, the yellow substance drops to the snow covered ground - causing much consternation.

 

[flying banana]

Had a quick look on the old tinternet and found this.

95 per cent of the exhaust systems built today are made up of iron alloy and galvanized steel. Exhaust pipes are made of either iron or stainless steel. Heat shields are made of galvanized steel. Here's where Mr. Podominocov would be giving me a gold star: galvanized steel uses zinc as a rust inhibiter.

Zinc, when hot and in the presence of iron and a catalyst, creates yellow zinc oxide in the form of crystals. The connection is the catalyst - salt water - or compacted snow with road salt mixed in. If the snow is able to touch the exhaust heat shields and the exhaust pipes at the same time, the chemical reaction between the two dissimilar metals creates the bright yellow crystals.
(see the June 18, 2010 blog for more).
As the hot exhaust pipe(s) melt the snow, the yellow substance drops to the snow covered ground - causing much consternation.

well you live and learn. i'm certain it's that,i was in the lake district in all the heavy snow in jan.

 

[Corradobrit]

Do you have a damp garage? Is the masonry crumbling? I've seen similar corrosion caused by water breaking down mortar and releasing an alkali, especially during the wert winter months. You could test the liquid with pH paper and see if it turns blue.

 

[flying banana]

Do you have a damp garage? Is the masonry crumbling? I've seen similar corrosion caused by water breaking down mortar and releasing an alkali, especially during the wert winter months. You could test the liquid with pH paper and see if it turns blue.

Not particularly damp in there no. I'm sure it's dripping off the silencer after a trip away. I might get the hose pipe under there in the week and give it a rinse off and see hat happens