Break in period and fuel economy

[dyn085]

I see a little over 32 with primarily city driving in my commute, but that is DCT and 18's, coupled with K&N drop-in, 91 octane, and snorkel delete. My OEM SEL never got above 29 in the same driving despite having 17's and running 87 octane.

[FordCustomerService]

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[revhigh]

Originally Posted by gambit293

That is FABULOUS gas mileage for 70% city driving.

It may be IN a city ... but it's more like RURAL driving than city driving .... at least as it was explained.

City driving is considered like it would be in NYC ... lots of lights (every block usually) ... lots of iding .... and very low speeds ... at least that's what I consider city driving.


REV

[Black stick]

My previous car was also a manual Civic, 10 years old with 150,000 miles. My Focus gives almost the same mpg as the Civic. If I keep the speed to about 70mph I get around 35mpg. If I travel on country roads and keep the speed to around 60mph I can push up to 40mpg. Bear in mind that this is a 100 mile commute in a car with over 20,000 miles. The shorter your distance to work the more the fuel hungry warm up period will influence your overall mpg.

[TboneZX3]

Originally Posted by revhigh

It may be IN a city ... but it's more like RURAL driving than city driving .... at least as it was explained.

City driving is considered like it would be in NYC ... lots of lights (every block usually) ... lots of iding .... and very low speeds ... at least that's what I consider city driving.


REV

Yeah, it seems there's a very wide variation in what people consider "city" driving. My "city" driving wouldn't be close to what others experience in urban areas. Mine should probably be described as "rural" or "Bum" driving.

[djohns18]

My economy steadily improved over first 10,000 miles - then I got bored monitoring it. Purple line is for each tank, green line is the average since I got the car.

Up to May it was city driving, May through August was 50/50 city and highway. During the week back and forth to work, at weekends a 300 mile 80 MPH run to the Beach.

Back to city driving now and getting about 32.

[craigsfocus]

Most of the time I have been averaging 30 MPG on my 130 mile daily commute. But it was been getting cooler here in Texas and my last fill up yielded me 33 MPG. The past 3-4 fill ups have been in 31-33 MPG range. I don't drive anywhere as conservative as Elizabeth. My car just turned 17,000 miles. Been tracking my fuel mileage since day one. Here is my Fuelly graph.

[thehun]

Every fill up I am inching more and more. 2200 miles avg combined 33mpg with 91 octane since first tank...just on the highway it will get upwards of 40MPG

Since 500 miles Pennzoil Ultra 5w20 with BG MOA.