With fuel prices they way their going there's a few things you can do to get the most for your buck$$$:
* Buy your fuel in the early morning - when the temps are cooler fuel contracts and you actually get more for the $. Some stations try to offset it by putting heaters on their pump lines but you still get more if you buy in early hours vs afternoon or evening.
* Buy brand name fuels - stay away from XYZ discount fuels - most of them buy from old supplies or "bottom of the barrel" suppliers. Also buy from a station that has ALOT of business, the more business they have the fresher the supplies.
* Here's a "BIGGEE" - NEVER buy when the fuel truck is there!!! NEVER! When that "lunk" is there, he's stirring up all the sediment, dirt, condensation (water) in the bottom of their tanks and you know where that will end up - yep in your tank.
Other notables - keep tire pressures up, avoid major traffic (if possible), regular filter changes (cleaning if you're K&N equipped) and a dose of 99c STP gas treatment. You can buy the higher priced stuff Techron, etc.. but a bottle of STP every 2-3 months will keep injectors & fuel components clean at a fraction of the cost for the exact same results.