I have yet to focus on long-tanking it, as I'm just used to filling up when I have about 300 miles on it. I have noticed this is closer to half a tank lately, where before it was pretty close to empty. Perhaps it's time to readjust.
Wheel covers look great. I'd always been disappointed in the Matrix mileage, but you're proving that it's a good foundation, it just needs a heavily adjusted nut.
