Close
Q:

Why has my mpg dropped so much? I'm using the same gas, dealers, same driving. on 2010 Hyundai Santa Fe

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
I have a 2 yr old Hyundai Santa Fe. Up to the last 6 mos., I got 26 to 28 mpg (higher for longer trips). Now I am getting 20 to 23. Regular oil changes, air/fuel filter changes per requirements. Is there an additive that will actually work and help improve mpg?
(1) Answer
(3) Comments
there is more than just filters involved in a tune up have you changed your spark plugs and get it scan tested for codes.the higher the mileage the less your mpg will be because of wear and tear on your engine I would also trying putting injector cleaner in the tank