Interesting question you asked. Milage is always my most fav. topic. After all, the recession is still not over and we must watch our wallets. Every penny counts, eh?
But I noticed you didn't mention your location. Let me know and I'll tell you the exact milage from your office to Studio 409. Or, try GOOGLE map.
In regards to pricing, hey, welcome to North America! It changes on an hourly basis! But instead of FS (Full Service, I assume) if you go for SS (Self-Service), you would save at least 5 cents per litre, if not more.
I'm hopping you drive a V4.