Some of the stations already ran out of gas last night. But then some drivers of the national guard or the government or something who had never driven a truck in their lives (I love how concerned about safety this government is) started driving some of the trucks to deliver gas.
Anyway, I think it depends on each individual gas station's storage capabilities. And also how panicked the public is because of this strike. If people start lining up at gas stations en masse fearing gas shortages then that self-fulfilling prophecy will come about pretty soon.
I personally don't think its going to get worse than it is. I am sure they will strike some sort of deal soon. However, what scares me is that now they are preparing a legal case against Moyano. Yeah, CFK is out of her mind. And so are the rest of the morons with her.
If the government goes through with their legal case against Moyano then I think we're in for a very long and miserable winter.
PS: I'm sorry, I know it doesn't directly answer your question but I couldn't tell you for sure how long it would take for the gas to run out. I'd say maybe a week at most with no delivery. Again it depends on storage capabilities.