Useless Gear Slot in Overflow Loading Station?

[WSiggs]

In the Overflow Loading Station in each teams Alliance Station, there is a gear slot like that of the Return Loading Stations. Next to each Return Loading Station there are stacks of gears to be put into play by the opposing alliance, and there does not appear to be a stack for the OLS. This begs the question as to why there is a gear slot on the OLS. The game manual says "An Overflow LOADING STATION is used to feed FUEL from the OVERFLOW BIN on to the FIELD." and there is no mention of gears being inputted. Am I missing something or is this a useless slot?