If i fit bigger wheels will I get better mpg?

Again the answer is yes, this approach can make a significant difference to economy, but it comes at a price, and care must be taken. If you go too big with your wheel/tire combination, you may experience the tires rubbing against the wheel arch! You should consider the following points before trying this method.

1) Changing the wheel/tire size will affect the gearing of your car, this can be a problem in an already underpowered car as acceleration will be even slower.

2) Fitting bigger wheels will affect the turning circle of your car, you will require more road space for U-turns & 3 point turns etc.

3) The accuracy of your speedometer & trip meter will be affected. A typical example of this is your speedo showing 40mph, when you’re actually doing 50mph! On a more positive note, the car would be more relaxing to drive, with a softer ride & less engine noise at cruising speeds.

For more Fuel Economy Tips, please read the other posts.