what mph is the sweet spot for the absolute best gas mileage for an a4?
03-22-2008, 04:21 PM
#41
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03-22-2008, 04:33 PM
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Hell yeah maybe GM can do that to solve the gas problem they have been talking about. You can buy a 6speed vette with the 2.73s then chevy automaticly will swap it out for free
after the purchase ofcourse
after the purchase ofcourse
03-22-2008, 05:06 PM
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Well obviously you reducing your speed will improve your gas mileage however, it will take you longer to get where you are going. So really, you are going to use the same gas going 65 mph or 55mph because it will take you that much longer to cover the same distance. On a side note, this thread is pretty funny and hopefully you got there safely!
03-22-2008, 05:18 PM
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thanks for keeping me entertained guys. i got to my destination safely. it really didnt take that long cruising at 50-55. but i'll never do that again. i dont really think i saved all that much. but it was fun experimenting. thanks guys
03-22-2008, 05:20 PM
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It wouldn't get more than 30 and that would only be out in the midwest where everything is flat. Try that in the northeast and you wouln't see any difference because you can't drive around at 65mph w/under 1200RPM... doesn't work.
Also people throw these numbers around but truth is 30MPG would be incredible in an LS1 F-body with any type of gearing.
03-22-2008, 06:20 PM
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It wouldn't get more than 30 and that would only be out in the midwest where everything is flat. Try that in the northeast and you wouln't see any difference because you can't drive around at 65mph w/under 1200RPM... doesn't work. Also people throw these numbers around but truth is 30MPG would be incredible in an LS1 F-body with any type of gearing.
Also people throw these numbers around but truth is 30MPG would be incredible in an LS1 F-body with any type of gearing.My A4 with 2.73s gets 26-27 on the highway, at 65mph.
03-23-2008, 11:43 AM
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Well obviously you reducing your speed will improve your gas mileage however, it will take you longer to get where you are going. So really, you are going to use the same gas going 65 mph or 55mph because it will take you that much longer to cover the same distance. On a side note, this thread is pretty funny and hopefully you got there safely!
03-23-2008, 12:18 PM
#53
I've done some experiments for mileage at 65mph and 75mph covering the same distance and filling up immediately after the trip. Holding consistent speed 95% of the time using cruise control
There seems to be an efficiency similarity between the 2 speeds as I noted nearly identical mileage and fuel burned. When you take into account aerodynamics, between the 2 speeds, air drag is all that really differs. You're still just maintaining speed and using your engine to offset friction. Since at that low of a speed air drag isn't all that of a factor, it'll be pretty much the same.
What I did notice is IF I varied my speed, mileage went down.
There seems to be an efficiency similarity between the 2 speeds as I noted nearly identical mileage and fuel burned. When you take into account aerodynamics, between the 2 speeds, air drag is all that really differs. You're still just maintaining speed and using your engine to offset friction. Since at that low of a speed air drag isn't all that of a factor, it'll be pretty much the same.
What I did notice is IF I varied my speed, mileage went down.
