Will fuel stored in a metal cannister for two years still be okay to use?

I keep 10 litres of unleaded petrol in an approved metal cannister in my car boot for emergency use. As I keep my tank topped up, the contents of the can have now been sitting there for two years. Would...

LPG - why hasn't it been more popular in the UK?

I often notice driver of Eastern European origin using the LPG pump at my usual filling station, what are your thought on why the fuel has not been more popular in the UK ?

Will using the air con on high waste fuel faster?

I have a 2017 Toyota Yaris. Will using the air con on high waste fuel faster?

Can I use super-unleaded fuel in my Volvo 850?

I have just acquired a K reg Volvo 850 GLT with just 25,000 fully-documented miles on the clock. Is it okay to use super-unleaded fuel in this car? Also, would it be wise to use a petrol additive such...