My pockets hurt...
Are there any easy and FREE mods that will lower fuel consumption (other than driving with pillows strapped to your feet)?
For example, increasing the unmetered air flow by undoing that infamous screw... that would presumably lead to more efficient burning of the fuel that is injected assuming the GLS to run rich? Of course, it won't lower how much fuel is injected....
Anything else? And the FREE bit is important because otherwise you might as well just spend the money on the little extra fuel...