What happens when a conveyor belt dumps a robot onto an oil slick?
Basically the same thing happens as when a robot moves onto an oil slick any other time; the robot will keep going until it hits a non-oil space, a robot, or a wall. If an express conveyor belt moves a robot onto an oil slick, and the oil deposits the robot on another conveyor, the second conveyor will still move the robot (moving it a total of three spaces). [Note that this represents a correction to the timing chart, which claims that Oil Slicks have Timing only during the Robots Move phase.