WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
After connecting the fuel filler hose, tighten the bolts of hose clamp so that the tightening dimension is 4. 5 ± 1. 5 mm (0.18 ± 0.06 inch).