Quote:
Originally Posted by BHarvey
It's a 2011 Sonata (manual).
55mph shows 45mpg
60mph shows 41.5mpg
65mph shows 38mpg
70mph shows 38mpg
75mph shows 38mpg
This is with the built in average computer. Real data says it reads high by 2-3 mpg.
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If you can leave 5 minutes earlier and drive 5 mph slower you'd get the best bang-for-the-buck in terms of cost/benefit. Aero mods are good but make sure you don't negate the benefits by driving faster!