Didn't realise we as in the UK had 10 definitions of a gallon over 100's of years

 

https://en.wikipedia.org/wiki/Gallon

Gas cans here as far as I can remember have always had us gallons and imperial gallons. I think it was in the 70s sometime that they added liters into the mix.

6 hours ago, Max Tune said:

Gas cans here as far as I can remember have always had us gallons and imperial gallons. I think it was in the 70s sometime that they added liters into the mix.

Yes the link mentioned that, litres added for Canada iirc