Tbone, I don't ever carry water in a TORCS race but definitely not in winter, I've never pitted in a TORCS race. Could be wrong but pretty sure even the pros make it without refueling. One guy in my class starts with 1/2 a tank so he doesn't have to carry the extra weight, lol. He knows how much he needs. You should be fine. There used to be a pit area, not even sure there is a marked off spot anymore. If you're really worried about it ask in scoring, because I think it's against the rules to fuel up "just anywhere".
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Rob
TORCS 70