[101Volts]

What oil Brand, Line and Viscosity have you been using? I read there were three different engines available in this vehicle. If you're using 10w30 switch to 5w30 at the next oil change if your engine's not too worn, 5w30's gentler on cold starts and better for cold start mileage.

Add an air dam for HWY mileage; they can be made cheaply in a moderately robust fashion with floor matting and hardware. Your bumper might already have holes in it that you can add the bolts to. Don't make brackets with bent plastic like I initially did, it broke too easily; metal brackets are mandatory. Don't make the dam scrape the ground either.