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Old 04-16-2013, 07:48 PM   #11 (permalink)
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moderate hills are great for mpg. steep hills requiring braking/engine braking, not so much. fortunately new england is chock full of moderate hills.

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Old 04-17-2013, 10:20 PM   #12 (permalink)
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You people and your flatlands.....

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Old 04-18-2013, 11:01 AM   #13 (permalink)
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Quote:
Originally Posted by ciderbarrel View Post
OMG. I LOVE coasting down those mountain sides on I-70 and I-60. With a CAI, my all time high MPG on my Mustang is a 24.0 from Fairmont, WV to a gas station somewhere on I-70. 100% hw miles. With the ultraguage, I coasted about a mile at a 6% grade around 80 MPH+ (my dash beeps at me when I exceed 75) and the UG read 200-250 MPG in neutral.


I hope to be able to do that drive again now that I've dumped the CAI. I should be able to get 27-28 MPG on that route now as I got 23-24 MPG this winter
I used to drive from Morgantown to Wheeling, then to Martinsburg, then back to Morgantown daily. Plenty of record braking tanks at that time!
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Old 04-26-2013, 08:06 PM   #14 (permalink)
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2 / (1 / 15) + (1 / 150) =27.27mpg < 27-30mpg. You always have to climb up the same hill you went down, and Ideally, your average can only be double the mpg you had while going up the hill.

If your going to drive with load, your going to be varying your speed considerably. And if your going to coast down hill, well, your now your just doing P&G. And P&G on a level road will always get you better mpg than a steady cruise, with the exception of leanburn.
Oops, bad math on my part. I still like hills because a hill that is 15 mpg up and 150 mpg down describes a worst case scenario hill. As you show it is still better than the lower end of flat ground cruising. If a hill is steep enough to be 15mpg the way back down will keep me over 65 (at .26gph idle or on DFCO)
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Old 04-27-2013, 12:06 PM   #15 (permalink)
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I love me some hills. Mountains not as much, but it's nice to have them within driving range so you can see them once in awhile.
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Old 04-27-2013, 05:36 PM   #16 (permalink)
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I suppose it would be wrong of me to suggest the flattest state is the one in which my ex-wife ....

On the second thought, never mind.
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Old 05-09-2013, 10:13 PM   #17 (permalink)
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Lol, I was thinking I've got to be in top 3.

We have interstate overpasses and levies, that's pretty much it.

In New Orleans they built a hill (named monkey hill) at the zoo about 100 years ago so that the children of New Orleans would know what hills are.

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