no
The manufacture of your vehicle designed the tires to give the best ride, handling, mileage, and overall performance. Changing this tire size will effect one or more of these criteria. Improved mileage may come at a cost of lost performance. The engineers spent many hours deciding on the perfect size for this vehicle. My recommendation is to stick with the OEM size tire that the engineers designed for your vehicle.
Depends on the vehicle. It could improve mileage or lower mileage.
Larger tires can decrese gas milegage.
incorrect tire inflation
Maybe, the manufacturer optimized the tire size to the vehicle, if your currently running larger than stock tires then you could be decreasing your mileage. Check the inside of your drivers side door for a placard with the correct tire size and inflation.
No, it will decrease gas mileage.
It does not change the actual speed of a vehicle but changing tire size can affect the accuracy of the speedometer.
if their the same tire size then yes
I recommend a highway tire for your best gas mileage. The strength of a tire is referring to the tread size, the larger the tread the larger the tire. Hence, the less gas mileage obtained.
Tire size may be off. Previous owner might have turned it back to improve the value of the car. It might be broken. IT might have been broken eariler and replaced with a unit from another car of another mileage.
The tire size for the base model 2003 Chevrolet Cavalier is 195/70 R14. Tires are sold in several prices depending on the mileage warranty of the tire.
Probably, especially if the other dimensions are the same as the bigger tire. Be advised that you will not receive as good gas mileage.