We're hitting the road for the holiday weekend -- my family of four, plus sis- and bro-in-law and their kidlet are making our more-or-less annual trek to Mammoth Mountain. What makes this trip different from all others is the price of gas: At well over $4/gallon, it's become a major trip expense. I've chosen a minivan over an SUV (a Toyota Sienna, which I last tested in 2004. It's my favorite minivan, although we'll see if that's still the case after the trip). I'm going to check the tire pressure before we leave; an underinflated tire could cost us 1 or 2 MPG. And I've vowed to drive the speed limit instead of my usual ten or fifteen over. Slowing down is one of the easiest and most effective ways to save gas. The question is, will my patience hold out? I'll let you know when I get back. Meanwhile, if you're looking to cut your own fuel budget, check out my top ten fuel saving tips. -- Aaron Gold


I look forward to your report on gas mileage you get from slowing down. I’ve been trying very hard to slow down myself lately. Right lane only and tell myself to be happy to let people pass. It is definately a test of patience. In the last few weeks I’ve been doing this, I haven’t had to fill up yet so I don’t really know how much it’s helping, for sure. It seems like it is though.
With a heavily loaded vehicle and other passengers on board, I would think driving the speed limit would be automatic, regardless of fuel costs.
I spent the last month driving all the posted speed limits, which is tough to do in my 2004 Mz3. I realized an average 1 – 2 MPG over the month. I record all my fillups so, I can confirm with confidence