Talk:Dieselisation/@comment-82.24.215.136-20130122172620/@comment-86.156.64.228-20161202180355

You need to have at least 5000 Fuel in your materials as it is this that lets you unlock Dieselization. I had 5021 in my materials, so what I did was I went into 'Shop', went to 'Shop Upgrades and Themes', went along until I spotted 'Dieselization', and quickly clicked on it which allwed me to operate my first diesel locomotive.