Ford Mustang Forum - View Single Post - thinking of switching to 5.0.
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post #19 of (permalink) Old 06-29-2014
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Joined: Aug 2010
Location: Southern
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Originally Posted by matthewr87 View Post
Actually the 3.73s are the worst gears for fuel economy. If you have 3.15s in the automatic they should be even better.
This is not totally true... for highway driving yes but anywhere that you can drive 60 mph or less they are good because you can get into 6th gear sooner. Where I live I average 21 mpg with 3.73s.
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