I reinstalled my rear deck spoiler, no noticeable difference in fe and I did not want to leave the aluminum tape over the mounting holes. I also lower my tire pressure a little in the winter. I have opened a small area in my grill block due to the fan kicking on and reducing mpg's due to the extra load on the alternator. I had tried a 5.6k ohm resistor in my IAT sensor wiring as per some on another forum I frequent, but I removed it after it showed better power, but lower mpg's. Last tank was my best ever at 46.4 mpg.
