Does the gas mileage go down as a car gets older?

Question

Does the gas mileage go down as a car gets older?

Answer 1

poss able but the amount would be so small that you could never see it.

Answer 2

yes.

even the best maintianed car will wear. and this wear, while still within tolerance, allows for parts to not be at their optimum. this is where extra friction occurs and it takes fuel for the motor to break that fricton to get you going.

Answer 3

yes. pistons gets loose due to wear and tear. as result, you need to more gas to have power on the wheels.