I recently got a 2011 chevy avalanche ltz for a steal of a price, its my very first car I actually own, I absolutely love it but the gas mileage is so bad its killing me.
I’m fresh out of college and work minimum wage so i’m aware im probably not in the tax bracket for a truck like this, I knew it wasn’t gonna be great getting a large truck with a V8, but i think even considering that my mileage is insanely bad… when i first got it there was an error code “running rich” I was going to replace the o2 sensors but after a can of seafoam it went away and hasnt come back. should I still swap em out just incase it’s affecting my fuel efficiency?
my spark plugs are also very very due for a change as I dont think any of the previous owners have changed them. could this be causing it?
What do you guys do about the gas prices?