It's the only one that doesn't make my brain hurt xd Every time I'm confronted with MPG I first have to think what is better and when I calculate I always conf

It's the only one that doesn't make my brain hurt xd Every time I'm confronted with MPG I first have to think what is better and when I calculate I always confuse M/G and G/M. While always having that 100km distance in mind makes it a lot easier. I'm not suddenly going to think about 100l.