Getting poor MPG City on my 2.0 ILX. How long does breaking in the engine take?

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  1. #1
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    Getting poor MPG City on my 2.0 ILX. How long does breaking in the engine take?

    I've had the car for 1.5 months and have 2000 miles on it so far. I'm getting ~35 on the HWY but my City MPG is lower than rated. Currently getting ~20-21 with my combined mpg being ~24 mpg instead of the rated 28.

    Anyone else experience similar? I do live where there's lost of stop and go traffic but I never experienced this with other cars.

    Only using premium gas.

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  3. #2
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    You should check out this site theres a couple guys with the ILX that keeps record of there mpgs there. 2013 Acura ILX MPG Reports | Fuelly

  4. #3
    Member Aeroscout977's Avatar
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    You really can't expect the car to be close to optimal fuel mileage until about the 3rd oil change or so. Also winter blends of gas are horrible for mileage.

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  6. #4
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    Quote Originally Posted by Aeroscout977 View Post
    You really can't expect the car to be close to optimal fuel mileage until about the 3rd oil change or so. Also winter blends of gas are horrible for mileage.
    What do you mean "winter blends of gas". Are you saying that the gas we get at the local gas station in the winter is different than what we get in the summer?

    @ Arctic: I think you should give the car some more time to break in, it's been like that with a lot of new cars, I believe this is typical. What is your driving stye like?

  7. #5
    Senior Member cfrp's Avatar
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    Quote Originally Posted by Aeroscout977 View Post
    You really can't expect the car to be close to optimal fuel mileage until about the 3rd oil change or so. Also winter blends of gas are horrible for mileage.
    I agree. I've noticed that until the 3rd oil change the gas mileage is kind of shitty. And winter blends do seem to be worse for mileage. Winter in general seems to be worse.

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  8. #6
    Member Aeroscout977's Avatar
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    Quote Originally Posted by AcuraPWR View Post
    What do you mean "winter blends of gas". Are you saying that the gas we get at the local gas station in the winter is different than what we get in the summer?

    @ Arctic: I think you should give the car some more time to break in, it's been like that with a lot of new cars, I believe this is typical. What is your driving stye like?
    Yeah RVP changes and ethanol content increases to around the max 10%. Couple that with changing driving conditions in many areas of the country and you will see a drop in mileage.

  9. #7
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    Quote Originally Posted by Aeroscout977 View Post
    Yeah RVP changes and ethanol content increases to around the max 10%. Couple that with changing driving conditions in many areas of the country and you will see a drop in mileage.
    Oh, no wonder. Cause on winter days where it wasn't as cold, probably as chilly as a cold spring day, gas mileage was still bad. Always thought it was my vehicle and not the gas or anything else.

  10. #8
    Member Aeroscout977's Avatar
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    Quote Originally Posted by AcuraPWR View Post
    Oh, no wonder. Cause on winter days where it wasn't as cold, probably as chilly as a cold spring day, gas mileage was still bad. Always thought it was my vehicle and not the gas or anything else.
    Yeah give her some time until they start switching back to better blends and the car is broken in better. I have a 2006 Civic Si and I average 7.5mpg better than listed. On the initial break in after I got her she was getting bad mileage and the winter didn't help. Come spring and summer mileage began to creep up to better than EPA estimates. =)

  11. #9
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    My average is 27.5 in mine, 5k miles on it now and I drive with a heavy foot most of the time. I think if I drove a week with cruise on I could get it to the 28 range.

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