Refittable cargo cars

[AndrewCarnegie]

hi,

I've got some GRFs loaded on to my openTTD version

I'm trying to set up a medium haul iron to steel factory run

the pure iron car travels a max of 68 km / hour, w/a diesel locomotive

i've got two diesel engines, that with a load of 12 cars, can go a max of 177/km hour

i selected a generic bulk wagon, designed for coal, but refittable, max speed of 160 km / hour

so how does one refit a cargo car from the default coal to , in this instance, iron?

I don't see any interface buttons letting me change the cargo from coal to iron, so needless to say, the train's a waste

thanks for help on my question

[Sylf]

Here's the refit page on the wiki. Hopefully that page is good enough to get you going in the right direction.