If the mileage calculator is correct on the car, after my last fill up on the way home from a weekend trip, over 125 miles I got 32.2 mpg going about 77 mph. I am still amazed at the highway mileage this car gets....are others getting this type of mileage on the highway?

 

on a 250 miles trip going 90 on the highway, I got an average of 28.9 miles per gallon.

 

That's pretty nice numbers, makes some of us older LS drivers a bit jealous!