i have a 93 camry LE which is a automatic with 150k. I just got the car a few month ago and it been getting 15mpg. I should be getting 22mpg.
What should i do to get a better gas millage?

When was the last tune-up?

i've been getting about 17mpg. 76k miles on 96 Le but i only drove the car for 400 miles. Maybe i should get a tune-up.

i just got the car a few month ago and i don't know when the last time, it got a tune up. What is in a tune up? Around how much would it cost me to get a tune up? Thank You