I wouldn't drive it unless it was an absolute thing that you had to. The problem could get much worse fast, very fast!!! Another thing you could do is pull your spark plugs out and see if any of them have little crystal lookin type build up, if so that is the cylinder that is burning water. I spaced that check out and just thought of it.

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Thanks, Nels
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86 300E
93 W250 4X4 Cummins Power
72 F250 Highboy
89 S-10 408ci BBC
custom V Four Chopper
77 Peterbilt 352
83 Jeep CJ-5