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Legacy Wagon 2.2 mpg problems ??

5 messages,  Last post on Apr 29, 2009 at 10:47 AM

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What is this discussion about? Subaru Legacy, Subaru Outback, Fuel Efficiency (MPG), Sedan, Wagon

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#3 of 5 Re: Legacy Wagon 2.2 mpg problems ?? [ateixeira] by gregnw44 Apr 28, 2009 (1:42 pm)
Replying to: ateixeira (Apr 28, 2009 6:54 am) Thanks.... and I'll have that done. What should the compression #'s be for that car, with those miles?   And is that the main thing to check for low fuel mileage?   Any other things to check? fuel injection air intake exhaust timing   I'm not a mechanic... just tossing out words here.   Any tips or advice would be great before I get the car in.   Thanks, Greg Replies to this message: ateixeira (Apr 29, 2009 10:47 am)
#4 of 5 Re: Legacy Wagon 2.2 mpg problems ?? [gregnw44] by morin2 Apr 28, 2009 (3:25 pm)
Replying to: gregnw44 (Apr 27, 2009 10:41 pm) I had a 94 Legacy sedan with the 2.2 auto and got around 30. I sold it to my son when he got his license and I suspect he must get closer to the 20. There is a huge difference in our driving styles. I was taught to drive like there were eggs under the gas and brake pedals and was rewarded with great fuel economy. My son, unfortunately, is always in a hurry and accelerates and brakes hard. I coast. I have always recorded every fill-up in a small notebook and so, have a running tally of fuel economy - as well as a convenient place to record all maintenance. The columns in my record book are: date, odom, miles since last fill (delta odom), gals, $, mpg. I have recorded every fill-up since 1972 in this way.
#5 of 5 Re: Legacy Wagon 2.2 mpg problems ?? [gregnw44] by ateixeira Apr 29, 2009 (10:47 am)
Replying to: gregnw44 (Apr 28, 2009 1:42 pm) My guess is tire pressure and condition, plus alignment, are even bigger factors.   Not to mention driving style, and the previous post mentions.   My minivan has a trip computer and I can break 30mpg on highway trips if I drive smoothly and keep speeds down. We were driving to Florida and my brother got a turn behind the wheel while I slept, I think he was doing 90, and he got 25.somethign mpg.   Speeds make a big difference, also. Wind resistance increases with the square of speed, while rolling resistance only decreases linearly.

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