I Agree with Leon 1
I have been using my trangia stove since 1986.
To ensure the stove is out, before you refill it, put a drop of water in first which is needed anyway to prevent pots sooting up.
Petrol, gasoline etc is a much worse contaminate, than meths, which is very hard to get out of clothing and gives you a nasty skin rash unlike the meths.
I have used my stove all over the world from the Falklands to Africa to Northern Canada, in gales or extreme cold it has worked for me. In -30 C when I was leading a dog sled trip I made Indian doughnuts (doughgods a kind of deep fried bannock) for breakfast.
Here in Canada we can get a small tray that clips onto the bottom of the trangia stove, this is primed with a small amount of meths that pre warms the main stove that when lit turns into a veritable blow torch. No doubt this small pre heater is available in Scandinavia.
In some countries I have used vodka to fuel my stove, some parts of the world produce booze that is very cheap and is probably better for you to cook with it than drink it.
The only reason I do not use my meths stove as much now is because I now tend to cook on open fires. But I love to carry it on small day trips when I want a quick brew in the field.
Dave
www.mahikan.ca