|
That tire size thing could make quite a difference if your speedometer/odometer is off. Stock size tire (185-65-14) has a circumference of 73.7". The 185-65-15 tires have a circumference of 76.8, that's a 3.17" difference per revolution. That equates to 4%. So you may be traveling 4% more miles than your odometer indicates. Adjusting for that would increase your MPG.
|