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Discussion Starter #1
I'm considering doing a few mods like Ram air, remove the second muffler and possibly and underbelly pan. Comments, suggestions=?
 

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underbelly pan would be negligible I think... the whole front end of the car is pretty much covered, and the rest is pretty well designed.

might as well go with a short-ram or cold air intake if youre gonna plan on modifying the setup at all, will probably net you better increase anyway, just my .02.
 

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Premium gasoline has netted me around 3mpgs more a gallon.
 

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Premium gasoline has netted me around 3mpgs more a gallon.
Contrary to that, premium gasoline net me about 3mpg less a gallon when I ran it. I've switched back to 87 and now see better fuel economy.
 

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Strichmädchen & Koks
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The BEST way to increase fuel economy is to learn your car, find where it likes to be for the best mileage, and keep it there. How you drive will impact fuel economy so much more then any add on...especially one that you pay $100+ for...it's going to take a LONG time to recoup those costs with the rather small gains you may or may not see.
 

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Discussion Starter #6
Premium gasoline has netted me around 3mpgs more a gallon.
I've switched back and forth... I've gotten mixed results.. I need to do more testing before I can verify the increase.
 

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Mobil One Advanced Fuel Economy Oil 0W20. (available in some places for a five quart bottle for $23. instead of the $8 a quart..)
(Standard Motorcraft filter is fine)

Keep all window and roof closed on highway

Increase FRONT tires to 44psi (you will NOT even notice it over bumps.. but the car will corner better) the rear leave stock, or only one or two at most psi higher. If more you WILL be really feeling the wacks from the overly stiff tires.
This is assuming you have 17" or 16" wheels. I do NOT know what increasing the 18" tires would do...

Avoid streets with stop lights or stop signs. Every one you stop at cuts mpg drastically. Even if a longer route, if it has no stops, will be worth it.

If you are planning on buying wheels, the smoother the surface, the better the mpg. So five spoke are like the worst for churning the air. A nice smooth moon cover would be the best.
Covering the rear wheel openings is a big mileage gainer..
Lowering the car should also give some gain.

reset your stock mpg meter often. The meter will give tremendous insight into what adds to the mileage, and what kills it.
By resetting it, you let it change way more for small changes in the actual mpg being used.

With a manual tranny you absolutely want to be in the highest gear the car car be driven in at any time. For me fifth is good at 32mph.
If you have to go up a hill though, downshift!
(I think this is why the auto is said to get better mileage.. because most stick drivers cannot keep it in the lowest gear like an auto can.
And it has it's own rules to upshift. A person has to guess if it is best to downshift.

Slower is better. The best i can drive seems to be below 47mph. Which is just 2mph over the freeway legal lower limit of 45mph...
I like 35mph streets
I drive 55mph in the 65 freeways. have for a few years..
Really sllooooow starts from stoplights and signs.
(folks LOVE to jump off the line.. too bad.. The worst are idiots who are tailgating so close they panic when i shift, and the car slows down for a split second..)

Interesting how some folks will also slow down when i am on the freeway. like they do not have the guts to do it, but would if another is doing it..
Then tailgaters, i used to despise them, but now i find them to be helping me get better gas mileage, i do not hate them as much.
 

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really simple... bought a touted high milage car ... drive like normal...
= better milage ... actually we seem to drive a bit more aggressively in the 2012.

currently am running test of 2000 mustang 6 vs 2012 hatch ... after a few more tanks of gas and rotating driving/cars between wifie/me will report results.

Already wifie has preference for 2012 ... as more fun to drive and more lively. but mustang sounds better even though it's a six.
 

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Agreed with Red here, I drive it like normal without worrying heavily about how I drive and I'm getting the EPA estimated mileage. That said, I have a long stretch of 55mph road to work and back and never seem to jump over 30 for very long... hoping when I finally take the car in for "The Works" having everything checked/replaced/topped off will help me out a bit, fresh oil should help, once all the crud from break in is drained out.
 

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I have been driving extremely conservative to increase mileage.
Like JoeyWhat stated, a $100.00 add on will take a Looooooong time to recoup your cost and even longer to see the benefit.
Read Elizabeth's post about driving habits.

I was driving a 2002 Dodge B1500 at 12MPG...No matter how I drove, the best was about 14MPG. My gas cost is about 1/3 of the Dodge with the Focus.
 

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I came from a Mazdaspeed 3 getting me about 25mpg highway with premium gas... now paying ~$.30 less a gallon, I haven't had a fillup over $40 yet, I usually fill up anywhere under 45DTE, the Mazda I'd do the same or a bit lower, but the DTE number on the Mazda was much closer to actual DTE, and I'd be filling up over 12 gallons... combining 2 more gallons and ~$.30 a gallon more, I was paying close to $50 a tank, even just 10 bucks less a tank for 30 more miles a tank, is great.
 

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Discussion Starter #14
(2012 SE Hatch automatic Stock)

Set my baseline today and established my Test lap for mods and repairs.

27.8 miles.

Baseline stock with 800 miles on car
70 Degrees
dry roads.
light Sunday evening traffic (6:30pm).
36.4 MPG (car computer)
Driving like a granny without hypermiling.

The girlfriend and I in the car (>300lbs combined)


Traveling clockwise headed to HEB for 87 octane gas (10% ethanol) then into town where there are speed limits of 45 -35mph and multiple stoplights but all right turns. Hills throughout, Elevation changes, downhill to town and uphill when traveling west up the boulevard (speed limit 55 & 60). Highest elevation is the Northwest tip of the lap.

 

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Discussion Starter #15
I just did a test run with the Airbox cover removed, front tires at 44psi and spare+jack removed. She bumped up from 36.4 to 38.8mpg.
 

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Today, once I passed the first 1000 km, I used for the first time the speed control and cruzed at 105 km/h. I was stunned to see the 5.8L/100 Km as average gas use. WOW ! I am sure that if I lower the speed, it would be better, but I don't want to. A 65 MPH speed is great for my commute (50 km round trip) of day to day.

In US metrics, that means 40.56 MPG at a 65 MPH speed !! [ffrocks]

And yes, it all depends on how you drive.
My car setup : stock (no front tires inflate to 44 psi).
Temperature: 24 C degrees (shiny day)
Wind : 12 kmh
 

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Now why is it that my 02 focus has new oil (synthetic), new sparkplugs, new air filter, properly filled air pressure (what the tire says on the side), and on top of that the car is clean. Guess what, a straight trip from gas station to gas station, 170 miles at 65-70mph and i only got 27.1mpg......... help???
 

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Now why is it that my 02 focus has new oil (synthetic), new sparkplugs, new air filter, properly filled air pressure (what the tire says on the side), and on top of that the car is clean. Guess what, a straight trip from gas station to gas station, 170 miles at 65-70mph and i only got 27.1mpg......... help???
You're not doing anything wrong with your car but you are comparing apples to oranges, as they say. Specifically, your '02 doesn't have the technology in the powertrain design that the newest Focus does. (If it makes you feel any better, mine doesn't either). More "engine smarts" in the newer designs like the variable cam timing, for instance.

What engine do you have? SPI or Zetec? How many miles on it? If you want a fairer comparison, compare apples to apples. Beyond that, there's not much you can do. Drive it easy, coast to red lights... move into the slower lane etc and keep it well-maintained (sounds like you do).
 

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i forgot that i also cleaned the maf

anyways, its a zetec zx5, with about 75k. When i looked at the focus online id always seen the early models advertised as like 28-30city, 32-34 highway. So far ive yet to even acheive 28 on the highway..... When in town i like to be a little heavy on the right foot, but on long trips i tend to set the cruise and keep my foot off the pedals.
 
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