Quote:
Originally Posted by ketel0ne
I have started to cut my commute into pieces. The first piece is rural hilly roads for 10 miles from my house. At the end of that segment I am usually sitting at about 33mpg. Here is why this is so puzzling. I can coast, drive as slow as I want etc. I see on here entire commutes that are 10 miles and less where people are getting 50mpg+ via SG. The first 2 miles of mine I can only get to about 22mpg. I know everyone's car, drive is different, but I just think I am missing something simple. It takes almost a mile for me to compensate for getting out of my driveway and getting to the first downgrade for coasting.
I know I am asking for critcism, but in reality advice doesn't have to be negative.
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Hi, KetelOne!
Don't feel too bad about dealing with Mother Nature ... and coming up with the short end of the stick!
Look at what you are trying to do...start off from zero MPH and accelerating to "X" MPH, albeit slowly & gently! One, your auto. tranny is gonna slip&slide, trying to move that mass (how many hundreds of pounds?) from zero speed to cruising speed...wasting a lot of gas! Two, and we're talking average MPG here, right? ... at the end of your "trip" (however long) your average MPG is going to (mathematically) include all that "tail" you've been dragging- low speed, high gas consumption. This "tail" of bad numbers will be buried within your last (high speed, low gas consumption) number! Calculate the last, single number (MPG, average) and never ever forget the "tail" in the math! The further you go, the smaller the "tail's" effect on the single number! OK?
And, automatic transmissions are (generally) the curse of the effenciency-seeking driver!
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