wheel size and gas mileage?

**bluefields88** · 06-20-2008, 02:12 AM

I'm about to put 18 and 19 inch wheels on my car, how will they effect my gas mileage compared to my 17s?

**GULLETT17** · 06-20-2008, 05:57 AM

i dont think itll make much difference, as long as you get em balanced and aligned. aftermarket wheels can really throw off your alignment

**bluefields88** · 06-20-2008, 12:54 PM

they are OEM C6 wheels, so they should be okay I would think

**squee** · 06-22-2008, 10:38 AM

Originally Posted by bluefields88

they are OEM C6 wheels, so they should be okay I would think

Uhmm, NO. You should still get an alignment.

**GULLETT17** · 06-23-2008, 05:09 AM

Originally Posted by squee

Uhmm, NO. You should still get an alignment.

**Speed Psychosis** · 06-24-2008, 02:21 PM

wider tires can make worse mpg. why a prius uses rubber bands for tires.

**GULLETT17** · 06-24-2008, 05:34 PM

Originally Posted by Speed Psychosis

wider tires can make worse mpg. why a prius uses rubber bands for tires.

id agree with this . . . more resisting friction im guessin

**Eugenio_SS** · 06-25-2008, 11:03 AM

the friction does almost nothing to it... its more the rotational inertia that has to do w/ it.

**hoss 2000 z-28** · 06-25-2008, 11:07 AM

Also don't forget about the total outer diameter of your tires from stock to these new 'vette wheels! There is a tire size calculator on this site, make sure you get compatable tire sizes for your new rims. If anything, wider tires will reduce fuel economy because they produce more friction and rolling resistance (275, 295, 315 vs 255, etc.).

**bluefields88** · 06-25-2008, 11:14 AM

I'm just going with the same size tires that the rims came with from the factory. 285's in the back and 245's in the front. I weighed the back 19" rim, and it only weighs 25 pounds without any tires on it. only 3 pounds more than my stock 10 spokes. I'm guessing the front ones will be around 22. haven't weighed them yet.