Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
Had Calais V wagon to review the other week averaged 18l/100 in city driving ave speed was around 20km/h, on the freeway it got down to the 9s I will say i did exercise my right foot a bit though.
I run RON91 with the occasional fuel treatment cannister.
My average is 16L/100km. My best is 13L/100km
A full tank covers about 480km.