PbF00T Posted June 26, 2013 Report Share Posted June 26, 2013 If anybody is interested in the real world mileage results, I just did a 650 mile trip with a large roof box on my c-max. I'm running the Thule aero-bars with a Yakima SkyBox Pro, it is a pretty big box, the combo is taller than a Ford Expedition. I had a good 150 lbs in the roof box and four people and a full trunk. The trip was 50/50 highway (68 on cruise) and hilly rural two-lane (55-65) through the Adirondack park. Regular old corn-gas in the tank. Temps in the high 80's with the occasional massive thunderstorm added in for good measure. According to the car, the average for the trip was 38.7mpg - I'm pretty happy with that! This was my first drive in the car after the 3.51 update, the GPS is improved a little from a usability standpoint, but still not as good as GPS's I've had in other cars. Bluetooth stuff is improved a little, but bluetooth audio for music from my phone is still rather unpredictable and annoying. Same with iPod integration, it drives me nuts when it goes back to the beginning of an 8 hour book. KAL Cmax 1 Quote Link to comment Share on other sites More sharing options...
pnwAl Posted July 5, 2013 Report Share Posted July 5, 2013 Thanks for the info, sounds like a solid result for the combo of weight and aerodynamic resistance! One follow p question; how was the noise level impacted by the rack and box being on the car? Did you notice a significant amount of wind noise in the cabin? Thanks again for the info. Quote Link to comment Share on other sites More sharing options...
Jus-A-CMax Posted July 5, 2013 Report Share Posted July 5, 2013 I would me more interested in the handling of the CMax - given the extra weight on the top of the box, and any effects from the cross winds. I use to have boxes all the time on top of my Jaguar...but thank goodness, all the sh*t now fits inside the CMax without the need for a box, thereby giving us 140% increase in the MPG. Quote Link to comment Share on other sites More sharing options...
StoBro2 Posted July 6, 2013 Report Share Posted July 6, 2013 According to CR, driving a Honda Accord at a steady 65 yields 42MPG, but with 2 bikes and a wind deflector on a roof rack it drops to 27MPG! Quote Link to comment Share on other sites More sharing options...
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