If your car started to run pretty crappy out of the blue, and found that in order to get it to run you needed to advance the timing...even then, it would "buck" on occassion, run hotter, feel like an inconssitent miss with NO backfiring...

...would you suspect water in the gas?

I'll be checking for this in a little bit (way too hot now)...who else thinks this may be the case?