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hhr fuel economy

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Old 03-22-2011, 05:48 AM
  #11  
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Originally Posted by nmnerf
i bought this car used and the mpg setting in the dash had a solid 24.0 mpg after 2 weeks it dropped to 17.7mpg wats a good way to get it back up?
Sounds to me like you were really enjoying your new car.....
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Old 03-22-2011, 07:02 AM
  #12  
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I've never seen mpg less than 20, except when the DIC was reset and I'm starting out from the pump. I usually see 28 and on the highway 30+.
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Old 03-22-2011, 07:25 AM
  #13  
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I've gotten mine below 15 on the DIC..... But I was trying!

and Yes! I was having fun. Front tires weren't
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Old 03-27-2011, 08:21 PM
  #14  
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2.2L Auto 2007.

I tossed 10 gal. of 87 Oct. CT Winter Gas which on ave is 2-3 MPG less then lets say a NJ fuel.

I zeroed out the MPG calculator.

Mixture of City and Highway. Bout 75% Highway, 25% City.

Managed to be light on the throttle, never tried to let it get past 2,500 RPM and on the freeway I ave. 65-75 mph.

I got as high as 27.5 mpg and as I got to low fuel light again and it was just at 25.6 So that was not bad. My average week is really like 90/10 highway/city so I bet once it gets warmer and play around with driving habits it should improve.
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Old 03-31-2011, 07:59 AM
  #15  
 
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Fuel Economy

I was getting 24 MPH after 50,000 miles and had the fuel injection system cleaned at Valvoline. The MPH is back up to 25 again. I am also switched back to Valvoline Durablube.
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Old 06-11-2011, 01:05 AM
  #16  
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Just my lil tidbit. I recently tacked on over 110 miles in a day commuting from Bremerton, Washington to Lake Stevens, Washington (via ferry boat where needed) and driving roughly 50/50 road and highway mighty aggresively I averaged about 25-26 MPG with speeds from 15-70 MPH and various amounts of "PUT YOUR FOOT DOWN!" thrown in.

Catching rubber from a standstill to 20 MPH around a corner.

2010 1LT stock 2.2L auto

HINT: Traction control has an impact on performance and efficiency depending on what you're trying to do.

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