I get between 14 and 19 L/100 km. I do a lot of towing, off-road, or highway driving. Almost no city. It's really hard for me to compare b/c my driving is so varied. the odometer usually hits 400 km though. One tank will last me 3 month or more, and I'll do a little bit of every style of driving.
Interested in knowing what other people get. I started using 91 in the tank.
**EDIT, I run 265/75/17, stock was 245/75/16 (i think)