Have you tried to do a tune up on your car? This would entitle new plugs and wires, Oil change, PCV valve, EGR Valve, fuel filter, and possibly O2 sensors is all I can think off the top of my head. You should also check your tire pressure. All of these things will make your gas mileage decrease if they are not in working order or your tires are not at the right PSI.
You can check your PCV valve by pulling it out and shaking it. If you hear a rattle then it is good and does not need to be replaced. I hope this helps you out.
The best site for a gas mileage calculator is at gascar dot com. That site has a good tool to see what you are actually getting out of the car and which is best and worse.
worse
i am getting between 17 and 18 after it turned 30,000 mi. it was much worse before that
the lower your rear axle ratio, the worse your mileage.
It can, and usually it will make it worse.
Sadly it is getting worse in the whole world.
A v-8 will always get worse mileage than a v-6. If you're worried about gas mileage, don't be driving a Camaro. i have a 92 rs and a 90 rs. i get about 25 mpg
its getting worse
deteriorating
worse.
Depends on what you define as gun violence and where you look. Subjectively: It is getting worse in UK, despite near-total gun ban. It is not getting worse in US.
dense cold air requires more fuel