13IS250C Posted October 2, 2014 Posted October 2, 2014 My erratic gas mileage has been driving me insane!!!! As you know, I have even gotten Lexus involved. Yesterday I was on my weekly trek to Tunica going down the interstate at 75. I looked at my average mileage and it was 24. When I drove to South Carolina I averaged 31. I was just staining my brain to try to figure out what the variable was when DUH!!!!!!!!!! It hit me like a ton of bricks. It is the difference in me driving with my top up and the car is all sleek and aerodynamic, and having the top down and the wind all swirling around and into my car! Except for the drive to and from SC, I bet my top hasn't been up an hour since I retired. No wonder my mileage has dropped so. Can you believe that the dealership and Lexus couldn't figure that out. Sometimes it just takes a blond. I'm going to call Lexus and tell them. The girl that was helping me was so nice.
pj8708 Posted October 7, 2014 Posted October 7, 2014 I was going to suggest you change your left handed farkel tube.
13IS250C Posted October 7, 2014 Author Posted October 7, 2014 The girl at Lexus and the service manager at the stealership got a good chuckle out of it. I really do have a lot of wind resistance at that speed. That is what I love about the car!
13IS250C Posted October 8, 2014 Author Posted October 8, 2014 Yeah. I guess you don't realize the importance of aerodynamics till you don't have it. :-)
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