| Message | I get 18 city and 20 highway, and I'm concerned about -my- mpg. *l* 40's about as low as I would take 5th, though it'll run down to about 35 before you have problems.  If you need to accelerate at all though, you'll want to downshift unless you're over 45/50.  That's how my car feels to me, at least. 
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