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Old 10-23-2012, 10:57 AM   #121
Scooby Newbie
Member#: 310024
Join Date: Feb 2012
Location: Rocklin, California
2012 Impreza Sport
Marine Blue Pearl


No, not average speed on the digital dash readout. Average speed on the highway! I don't use average speed on the digital readout.

I will try your test and post my MPG.

Originally Posted by Zeeper View Post
I believe the combined fuel economy number that was printed on your sticker is 30mpg.

36mpg is the expected Highway number. If you drive so your average speed is 65mph that indicates you are driving faster than 65mph much of the time, because your average includes when you first started driving at 0mph.

If you want to prove to yourself that your car is capable of achieving the EPA numbers (hint, if 30mpg is the expected Combined Fuel Economy number you are already achieving the expected MPG) do this test:

1) Find a stretch of highway.
2) accelerate up to 65mph.
3) set your cruise control.
4) reset one of your Trip Meters (A or B).
5) drive 10 miles.
6) look at the Average MPG figure after 10 miles.

If you do this test and do not see at least 38-42 mpg I would be surprised.
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Last edited by 2012subisport; 10-23-2012 at 11:02 AM.
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