Quote:
Originally Posted by litesong
Not necessarily. We have both a 2013 automatic Elantra AND a 6% lower geared 2016 manual Elantra (same series). Both are rated the same EPA highway mileage. As a featherfooter tho, I try to keep speeds down, & would say the manual gets slightly better MPG on highways. On back roads with both transmissions in high gear, the manual gets somewhat better MPG. Of course, going over mountain passes, the manual gets about 6% better MPG. With its lower gearing, the manual has much better acceleration & speed holding ability on mountain slopes.
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Good to know, thank you for the information! I suspect that the manual transmission gets better highway MPG because it is more mechanically efficient than the auto since it has less moving parts and no internal oil pump.