As you probably know, there is only one tire, the Goodyear LS2, that comes in the OEM tire size (225/65R16) for the Quest SL. These are performance tires that are relatively expensive and only last about 35K miles on average (2 years for me).
While I was at the dealer for some warranty work, I asked them to provide an estimate for new rubber all around. They actually told me that I should not use the OEM tire and provided me a quote to put on a slightly different size tire (215/65R16) from Toyo. These are a slightly smaller diameter tire (27.0" compared to the original 27.5" diameter Goodyears) and are also a bit narrower (8.5" compared to 8.9").
My question to all you tire experts is how significantly will the smaller diameter tire impact the odometer? I am not concerned about the speedometer since the actual speed is slightly lower than what is showing up on the speedometer. Although, if I am going to sell this van in the future I do not want the mileage inflated too much over the actual. I do realize that the impact on the odometer is impacted by many variables including average speed, distance, treadwear, etc but I would love to just have a ballpark. Most of the driving is done by my wife carting the kids around town with the occasional 2-4 hour trip at highway speeds. I am hoping that the impact is nominal and I am being paranoid for nothing.
Thanks in advance for your help.