L/100km is standard, especially because our roads use km measurements. I use both KPa and PSI. Measure my personal weight in pounds, but doctor and etc work in kg. Trades people work in both, by necessity. (My father was a machinist / tool&die maker who trained in Germany... drove him nuts).
It's just the reality of "sleeping with the elephant" as the expression goes here. We just have it worse than Europe.
It's just the reality of "sleeping with the elephant" as the expression goes here. We just have it worse than Europe.