Hi

1. Im starting my oil setup and want to bring more oil from far away lands :) When I try to set full/empty cargo conditions train is running constantly between stations.

Greetings
jegrek

Yes, that is to be expected. Railtanker uses invisible storage tanks to work. There's no way for Factorio to know what inventory to check.
For full/empty to work with Railtanker you'll have to wait until i finish updating SmartTrains (or i can come up with a solution for Railtanker alone)

Another bug: The tanker car cannot be repaired when damaged. I get a "This cannot be mined" error.

Edit: Repair by construction robots works fine.

A suggestion for the 0.13 rail stop conditions, how about giving the rail tankers a fake inventory, that only holds 1 item as long as the tankers have oil in them. Then remove that item once the tanker is empty, this should allow the game to treat it like a cargo wagon with inventory.

A suggestion for the 0.13 rail stop conditions, how about giving the rail tankers a fake inventory, that only holds 1 item as long as the tankers have oil in them. Then remove that item once the tanker is empty, this should allow the game to treat it like a cargo wagon with inventory.

That's what Railtanker is doing right now when the train is moving to show the icon for the liquid. I could change it to always show them. The only issue with that is that inserters would take the item out if the train (accidentaly) stops at a station that has inserters.