Poor fuel milage on 2006 Toyota Tacoma

My Tacoma has gotten crummy gas milage since brand new; (18mpg Hwy - 15mpg city. I am a very conservative driver, not a "lead foot" Is this to be expected? V6, 6 speed manual...no trailering, no mountains.

by in Charlotte, NC on May 17, 2013
2 answers
ANSWER by on May 17, 2013
if over 75k miles i would get a tune up or start changing fuel filter first, rotate and balance your tires
ANSWER by on May 17, 2013
That is about right according to EPA mpg estimate!!
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I have changed the spark plugs and put cleaner through fuel to clean injectors. Still only getting 15-18 mpg. Auto trans. 139500 miles. what could thre problem be?