coloradoman wrote: ↑
Thu Jan 16, 2020 7:06 am
If I get a taller tire than the stock tire that comes on the stock 16in steel rims, will this improve my range at highway speeds? Since the engine would be rotating slower because the tires are bigger is my thought. But I have no idea.
Napkin answer, "No", the car was probably optimized for the stock tire size. Long answer, physics plays a part, energy in, energy out. Increasing the travel distance for each rotation of the tire takes more energy, thus the extra distance gained is cancelled out by the extra energy needed to complete the rotation. You can feel this effect yourself on a bicycle with gears. You pedal harder but travel faster in the higher gears.
Speedometer also gets inaccurate since it was set for the smaller diameter, you will drive faster than it shows and thus use even more power due to air resistance.