Due to the ridiculous prices of gas, 91 octane is somewhere between $3.60 and $3.70 right now in San Diego, I am going to be using a company car. When gas was cheaper, I was able to drive my WRX to work and avoid the $60/month that my company charges for the company car, and I was using less than $60/month in gas because my office is fairly close to my house.
Basically, the point is, my WRX is now sitting in my garage. How long can I let my car sit without starting it before I cause any issues? Once a week, a couple times a month?
I also have a Honda Civic that gets just under 36 MPG on 87 octane, so I'm pretty sure I'll be driving that primarily when not using the company car.