13.3 13.6 in town is awful,
I traded 08 Avalanche LTZ for this.
The Avalanche got 14 to 15 in town, so far Buick says it's in spec's I Have been a G.M. owner far over 40yrs won't even try to put a number of car's and truck,s so far I feel like G.M. s really let me down.
other then that it's a very nice, great confort really nice interior, I should have bought the Cad.
Seat's interior,Drive Ride
Use less GAS in town, it's not that great on the road.