>>34671958>disregard costsWell... Diesel has higher torque and a more efficient system for a given amount of fuel and engine size. It also runs cooler (because of the higher efficiency), which means it lasts longer. It's not too uncommon for a diesel truck's engine to last to 300-400k miles (480-640k km). However, the fuel can gel up if the weather gets really cold. They make de-gel stuff, but I hear it's a pain.
We can't really ignore cost, though. Diesel is more expensive, both up-front and in maintenance, and most people simply don't need it.
You're in Europe, right? I don't know what fuels cost around there, or how common diesel stations are as opposed to gas stations. Here in the US, diesel isn't super common, so the chance of not having access to fuel is higher than it should be (at least in my area).
>differences between pickup trucks aside from looks?Every brand has their own pros and cons. Again, I'm in the US, so I'm not 100% sure what your options are.
For example, mid-90s Dodges are notorious for having great engines (Cummins diesel) but also having total shit bodies, interiors, frames, and just about everything else. They regularly have dashboards crack for some reason...
Mostly, it's personal preference (interior, specs, cost, that kind of stuff).
Watch out very carefully for frame rot, evidence of the engine running very hot from heavy towing and such, and plow trucks (the frame can get bent from that).
Anyway, I'd say poke around your area's listings and see what you can get, then look for common issues with that brand.
I know people hate leddit here, but r/diesel has some really good links for buying a used one, if you decide to go that way.
I do lean towards diesel, but don't let this influence your decision. Both diesel and gasoline are valid choices.