2012 owners Post your MPG's

[Zillon]

Just pulled off 37.1 MPG on my last tank, which happens to be my highest calculated MPG to-date. I've been running premium in my car as well for the last several tanks.

33.6 Computer MPG
37.1 Calculated MPG
303.2 mi Trip/8179 mi Odo
8.179 gal @ $3.559/gal

[suss6052]

First real road trip with the Focus, following 80-100 miles of commuting on the same tank.

1289.6 miles on the odometer at the conclusion of the tank

426 miles on 11.4 gallons of fuel

Trip 1 calculated 37.8 mpg
Hand calculated 37.4 mpg

Fuel was just regular E10 87 octane as iirc that's pretty much all that's available around here (i.e. no E0 anything, at least not commonly available)

That was with the a/c on most of the time set to near its coldest setting and traveling to Ohio and back, prior to traveling to the western part of Michigan for a Conference, and then back to the same pump as the previous 2-3 fill ups.

That's the highest sustained mpg I've seen to date, but at the same time most of my commuting is done less than 20 miles per day round trip, as compared to doing 100+ miles at a time like I used to while in university.

[BetaDnB]

I'm currently running my best tank ever. 12,400 miles I'm averaging 39.2 mpg over 300 miles. This according to the computer. The fuel gauge is also sitting at half full. Also according to the computer I'm looking at just over 500 miles on the tank. I'm guessing that will end up about 480 by the time I fill up.

[kjl2012]

Just got back from a 600 mile trip and averaging 44.6 thats with the sfe sadan good deal man.

[PratoN]

Originally Posted by kjl2012

Just got back from a 600 mile trip and averaging 44.6 thats with the sfe sadan good deal man.

Nice! I kind of want to put my 15" LRR winter tires with aero caps back on for a week just to see what kind of mileage I could be getting if I replaced my summer tires (plus I'm using ethanol-free gas). For the last 4 tanks of ethanol-free has I've averaged just under 39mpg.

[BiggerBoat]

Originally Posted by kam327

Anybody have some REAL numbers for effect on mileage due to A/C use?

I noticed my last tank dropped about 2 mpg to around 31.5 for no apparent reason, and this tank looks to be even worse (computer currently reading about 30.5). This is after getting 33-34 over several tanks on my commute. The most likely culprit is increased A/C use - I used to use it only in the afternoon but started carpooling recently and I'm using A/C in the morning now too for the benefit of my passenger. But a 2-3mpg hit was much more than I was expecting.

The other main possibility is bad gas - I'll be switching stations next fill up to see if there's any effect.

Not the most lengthy scientific test but on a recent 200 mile trip with very good consistent conditions [82 degrees, virtually no wind, flat expressway with little traffic, same tank of gas, and cruise on 70 MPH].

Had been getting about 38.6 MPG with he A/C on for the first 120 miles. Then I turned off the A/C and reset the MPG meter. Went another 30 miles to let the MPG level out and it stabilized up at 39.5. Not even a full MPG. I expect there is a bigger difference in city driving with multiple loads in play but on on a hwy cruise, A/C appears to be a pretty small penalty.

Also, did your extra car-pool passenger also just start riding? What do they weight? Don't answer that, but you might want to consider it in the MPG equation.

[kam327]

Originally Posted by BiggerBoat

Not the most lengthy scientific test but on a recent 200 mile trip with very good consistent conditions [82 degrees, virtually no wind, flat expressway with little traffic, same tank of gas, and cruise on 70 MPH].

Had been getting about 39.5 MPG with he A/C on for the first 120 miles. Then I turned off the A/C and reset the MPG meter. Went another 30 miles to let the MPG level out and it stabilized down at 38.6. Not even a full MPG. I expect there is a bigger difference in city driving with multiple loads in play but on on a hwy cruise, A/C appears to be a pretty small penalty.

Also, did your extra car-pool passenger also just start riding? What do they weight? Don't answer that, but you might want to consider it in the MPG equation.

Wait a minute, your mileage went down when you turned the AC off? Is that because you opened the windows and caused extra drag?

Yeah I just started my carpool. He probably weighs 160 lbs soaking wet. I'd be pretty disappointed if that caused mileage to plummet 2 mpg.

[BiggerBoat]

Originally Posted by kam327

Wait a minute, your mileage went down when you turned the AC off? Is that because you opened the windows and caused extra drag?

Yeah I just started my carpool. He probably weighs 160 lbs soaking wet. I'd be pretty disappointed if that caused mileage to plummet 2 mpg.

I reversed the values (and fixed it in my original post so it no longer sounds idiotic). I suspect your driving is not a pure hwy cruise like my test. And, you have to figure the load of the AC during acceleration is a bigger factor. The extra weight is not as likely as big a factor but can't be ignored either.

[SA-focus]

went to houston a few months back and on the way over there i got about 40 mpg. on the way back i got 44mpg. i have the "automatic" both to and from i was mostly going about 65 with certain points going 75 since thats the speed limit at some points. was amazed to actually get that high. Have a trip to dallas coming up on the first of july so i want to see if the recent flash to the tranny and such has made any big differences in mileage. either way im a happy camper.

[JL330]

Tank number 2 on this car, 37.2 mpg. Car rolled over 1100 miles yesterday. It's better than the first tank by a little, maybe I can do better on this one, I need to avoid city driving as much as possible, I want to hit that 40 mpg or better mark. I need to figure out some ways to make the car more efficient.