> First of all, these systems mean the engine uses more fuel And yet small capacity modern turbo diesel engines power some of the most economical cars on the r

> First of all, these systems mean the engine uses more fuel And yet small capacity modern turbo diesel engines power some of the most economical cars on the road. If I recall correctly there was a Citroen vehicle getting 3.6L / 100km.[1] 1. https://www.carshowroom.com.au/showrooms/citroen/c4%20cactus/2017/AA000G7LP0 https://www.carshowroom.com.au/showrooms/citroen/c4%20cactus...