infiniti is telling me that since i cannot find a combo of 225/45/18 245/45/18 or 235/45/18/ 255/45/18, for the snow, that i can put 245/45/18's on front and back. does anyone know if this is true or will it screw up the odometer, transmission, or VDC???

 

I have 225 front and rear and its fine, the vdc works great, no issues. You might actually want a narrower tire for winter.

Crawford Plenum / Z tube + Stillen Hi-Flow / Borla Dual Exhaust / Stillen Xdrilled+Stotted Rotors
Best 1/4 mile 14.371 @ 100.29, 60ft 2.347

 

G35Gnome is right bro. Too wide a footprint isn't good for traction in the snow.
I checked the tire gauge and 245's are within about 2.7% of stock so should be OK that way , but may be a little wide for traction. Try for the 225's.

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