My enclave gets thre worst gas mileage of any vehicle i've ever owned. my 2003 trailblazer gets better gas mileage than this suv by almost double and it's not very fuel efficient. my boyfriend's v8 silverado also gets about 50% better gas milage. ive brought it in multiple times and they keep saying they can't find an issue bc the computer isn't flagging any issues. the driver side shock that wad replaced has also already went bad with no reason and the passenger side wheel wobbles when reversing out if a parking space. this again was checked and they denied finding any issues. this has been ongoing since i bought the vehicle and the ridiculously priced and worthless additional warranty in december of 2017.