| If you drain it, then if there is a any liquid in it you know that it will be condensation and you need to get it out.
The other reason is that petrol goes off in about a month and can gum up the inside of the fuel pump, etc making it harder to start in the spring.
I have just finished sorting out a Pantah, that someone had left petrol in and the gunge in the carbs had gone hard like a varnish, I ended up replacing most of the jets, etc. The petrol taps I only just managed to save by soaking in thinners for 2 weeks!
Modern petrol is only good for leaving in tanks for short periods! | 
18-Nov-2005, 11:23 
ChrisBushell
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