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Topic Review (Newest First)
10-14-2014 02:27 AM
rebelx
Quote:
Originally Posted by Elizabeth View Post
I set it on cruise and drive 53mph. I do not care that all the other cars are going 80mph.. usually some other person will settle in behind me and then two of us are casualy going 53mph. relaxed and happy.
Naturally we anger some folks who demand everyone break the law and drive like insane maniacs.. But usually we just get to our destination. And Oh look, at 46mpg too.
I hope you only stay on the right! Way too many close calls with people driving slowly on a 65mph zone :(

But dang, that MPG! I'm only at 2300 miles (had the car for a month and a half) and I'm approaching 38. Goal is 40, but I cruise at 69. The roads are much too damaged to drive on the right lanes on the freeways where I am.
10-10-2014 02:21 AM
sailor That 36.5 was true Hwy miles as mentioned, only a little traffic jam & local driving included.

NO special mods for mileage, I've got SVT suspension/wheels/tires on it & that won't help. The BSD delete is the only mechanical change, no aid at constant Hwy rpm.

Mostly cruise at 70 this year, I tried a tank at 67 on the way to FF11 & got 38 then - dropped to 35 @ 70-75 that year, we had fun driving faster when we could.

Factory PZEV otherwise, even the original air cleaner still.


BTW - I can't QUITE get 30 in town with mixed driving, 29+ is the best when driving conservatively without special mpg tricks.
10-09-2014 12:57 PM
RonW956 2014 Focus se HB getting 29.9 mpg in Texas where the legal speed limit is 75mph & on the sh-130 that I take its 85mph
10-07-2014 09:03 PM
Mr Orange SVT My best over 26k miles and 88 fill-ups was 29.2 and my worst was 20.75. I did a Sunday afternoon drive of 280 miles most of that on the highway at 75-80mph and I got 25.4 so the hell with 55!
10-07-2014 01:29 PM
forddiesel1 Best I've ever attained is 33. Air off at 60 mph.
10-07-2014 11:38 AM
ItsMcCoy
Speed Reduction - 55 MPH Limit

How in the hell do you get 36mpg? What economy modifications have you made? Have you taken almost all extraneous weight out?

Keep in mind that my trip was mixed with 100 miles in the city. 2/3 of that trip was expressway miles.

The best I've recorded was close to 31 MPG. Something must be wrong here.
10-07-2014 01:25 AM
sailor McCoy - speed does matter for MPG

My car is almost identical to yours, and I averaged 36.5 from Buffalo NY to FocusFest & return. 70 was the cruise speed, so that extra 10 mph costs 7.5 mpg. by your 29 @ 80 figure.

Both are sedans with the 2.3 duratec, so they should be close.
10-06-2014 04:19 PM
Mr Orange SVT
Quote:
Originally Posted by Elizabeth View Post
I set it on cruise and drive 53mph. I do not care that all the other cars are going 80mph.. usually some other person will settle in behind me and then two of us are casualy going 53mph. relaxed and happy.
Naturally we anger some folks who demand everyone break the law and drive like insane maniacs.. But usually we just get to our destination. And Oh look, at 46mpg too.
As long as you stay in the right lane you can run at 53. Just stay OUT of the left lane!
10-06-2014 11:42 AM
Elizabeth I set it on cruise and drive 53mph. I do not care that all the other cars are going 80mph.. usually some other person will settle in behind me and then two of us are casualy going 53mph. relaxed and happy.
Naturally we anger some folks who demand everyone break the law and drive like insane maniacs.. But usually we just get to our destination. And Oh look, at 46mpg too.
10-05-2014 08:26 PM
ItsMcCoy
Quote:
Originally Posted by Pennut View Post
Don't know why these people get on the expressways and have to be going like 80+ mph. Not saving much time and losing big time mpg's especially large SUV's and pickups that have the aerodynamics of a brick.
I will agree with you that heavy SUV's and trucks used to get slightly worse gas mileage, but with the new generation of vehicles that is not the case. Take a look at just a decade of progress from the early 2004 Ford Explorer to the 2014 Ford Explorer, and I'm talking same trim, options, the works. There is big difference in EPA reported MPG. Keep in mind too, that the new generation Explorers also offer more power and are slightly heavier. With today's technology, cars have no trouble accelerating to and maintaining an 80mph+ speed. With that said, MPG is actually not hurt that much. In fact, it's much better.

2004 Ford Explorer XLT.
14/20 MPG, 4304 lb. Curb Weight, 4.0L V6, 210 HP, 254 lb-ft.

2014 Ford Explorer XLT.
17/24 MPG, 4557 lb. Curb Weight, 3.5L V6, 290 HP, 255 lb-ft.

In my case, a 2007 Focus ZX4, I notice no drop in my MPG average when holding an 80mph rate on the expressway. I averaged 29.8 MPG on a 300 mile round trip: 200 miles on interstate (80mph average) and 100 miles city. I would say for a car that is rated 31mph from the factory it did pretty well for maintaining an 80mph speed. In fact, at 65 mph I normally average just shy of 29 MPG.

And in regards to truck, gas guzzlers get bad MPG. Yes! But diesels on the other have no trouble getting 20+ MPG out of a 200 mile 80mph haul. I've seen on first hand accounts of a Ram 3500 Cummins average 22 MPG on a 300 mile round trip, while hauling an extra two tons.

To recap, previous generation cars do not do well at a higher rate of speed, but new generation vehicles are much more efficient at a higher rate of speed.
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