Last post on Jul 15, 2011 at 8:39 AM
You are in the Chevrolet Malibu
What is this discussion about?
Chevrolet Malibu, Tires, Coupe
#2 of 4 Re: Chevrolet Malibu Tires / Wheels [rw08malibu]
Sep 24, 2009 (4:34 am)
Go to a tire sales site at look at the specs for the two sizes involved. Either or both if shown should be the same circumference or diameter.
#3 of 4 Wheel Size vs gas mileage on Malibu 17" wheel
Jul 14, 2011 (9:11 am)
go to: http://www.americastire.com/dtcs/infoTireMath.dos
That will give you the RPM on wheel vs tire size. With a little math using proportion calculation ratio you'll see how many fewer RPMs, therefore distance (one RPM and tire travels 4.76' on the road for example) or 1,109.2 RPMs. Divide that into 5,280'. Then take the next tire size, do the same and see what the difference is. That will be a % which u can use to determine how much further or less travelled your tire is. Then you can calc the MPG!
#4 of 4 Re: Chevrolet Malibu Tires / Wheels [rw08malibu]
Jul 15, 2011 (8:39 am)
If the dealer installed the 18" rims & tires on the vehicle, they should have also installed the correct gear for the VSS to match the wheel/tire combination.