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177 Posts
I am very disappointed with my SX Turbo’s fuel economy numbers. On I-40 through NM and TX, I was only averaging 24.4 mpg highway with 78 mph average speed. I fill it up with 88 grade gas because in Northern NM and TX, their lowest grade is 86. Through OK, MO, IL, and IN, I average 26.8 mpg. I use adaptive cruise control and HDA on all of the highway driving. What is going on? What confuses me more is that during the break-in period on the hills and valleys of Northern Arizona, I average 30mpg city driving with SMART mode!
I had better mpg with my previous vehicle - a Mazda 2.5 liter Turbo AWD!
I had better mpg with my previous vehicle - a Mazda 2.5 liter Turbo AWD!