Excessive gas consumption or just me?
I have a new to me 2010 Buick Lucerne CX 6
cylinder. It’s been taken care of very well it
looks detailed even though it wasn’t. An
elderly couple owned it before me and was
traded in to a dealer where my friend from
High school works. His aunt and uncle traded
it in and he immediately contacted me since
my budget was pretty low (4K)
At first I thought I was crazy but it has a 18.5
gallon tank. I got gas one day ago I’ve driven
39.4 miles (mainly back roads, some highway)
and somehow I’m a little above a quarter tank
and fuel range of 223 miles. Average fuel
economy is showing 22.2 mpg
Granted I’ve driven cobalts civics and one
Jeep up until now and I know there’s
differences but I don’t ever recall getting this
bad of gas mileage.
I’m using regular 87 just had a synthetic oil
change. Is this normal or could something be
wrong?
Also- after my oil change less than one week
ago it says my oil life is 88% and there are no
leaks. Something seems off. Thanks so
much for any insight!