Tires for '09 Murano

[sir]

Hi everyone,

What tires would be recommended for a '09 Murano ?Someone recommended to me the Nokian brand and pointed to the Nokian WRG2 All-Weather tires. With these I will not need 2 sets of tires (summer and winter). The problem is the size: they don't come with 235/65/18 but they do have 255/60/18. I checked with the tire calculator and they are 100% interchangeable but I have no idea how will affected the gas consumption. Is anyone using 255 over 235?Any other recommendations?

Thanks.