I would start with a basic tune up.
Clean MAF sensor
Check O2 sensors, and replace if needed
Oil and filter change
Check tire pressure and alignment
and a seafoam treatment couldnt hurt either.
10-15 is pretty low. if those things havent been done in a while or at all it would be a good place to start.
ZETEC Crew #26 SR #20 YELLOW BLAZE OWNERS GROUP#4
Moderator Pilot, 12 SE HB ╠╬╝, 2011 Ford Edge SEL AWD