2.0 L Zetec INCREASE your MPG thread....ongoing... - Focus Fanatics
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Old 03-05-2011, 12:36 PM   #1
frednumber15
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Arrow 2.0 L Zetec INCREASE your MPG thread....ongoing...

I'd like to start an ongoing thread devoted to increasing mpg with the 2.0 L Zetec engine....wagon or hatchback. I'm mostly talking about mechanical/aerodynamic modifications of various sorts...not necessarily driver mods.

Of course driving a car EASIER can get you the best mpg gains...just that some of the methods I've seen are a bit too extreme for my taste.

I'm currently driving my ZX3 auto by trying to keep rpms around 2100 or so...which gets you down the road OK. I can get my G force fix by cornering the car?

So far I've only managed to put in a new paper filter........but I do have quite a few mods in mind. Starting with putting the tire pressures up to 40 PSI...when it stops raining that is.

Generally I've been able to manage tank to tank mpg at around 30-33% better than the newer EPA mixed mileage number with other vehicles I've owned.

This thread might not sit well with the Fast and Furious crowd............but I've done my fast and crazy stuff...and am trying to adjust to PEAK OIL and humans who just can't seem to stop bumping in the night....meaning a serious supply/demand issue.

Hoping that anyone with success in improving mpg with the Zetec will post HOW they did it....and their tank to tank results.

None of this will happen overnight though...as I say...ongoing...


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2003 2dr ZX3 2.0 L Zetec auto 205/50/16s

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Old 03-05-2011, 01:19 PM   #2
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things i can think of.
-intake
-Exhaust
-synthetic oil
-tune
-dropping the cars weight
-low rolling resistant tires
-light wheels

and then just generally keeping the car clean and maintenance up
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Old 03-05-2011, 01:33 PM   #3
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Best tank I've done was 37.7mpg (calculated by the fillup). This was done this past december (winter tires, winter fuel).


Gotta drive slow and steady!


PS Mine is a '03 hatch 2.0 zetec manual


MPG in US gallons, NOT imperial!

Last edited by deadend9009; 03-06-2011 at 09:17 AM.
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Old 03-06-2011, 05:14 AM   #4
frednumber15
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That 38 mpg is not too shabby.

I wanted a manual..but you take what you find...at least this car hasn't been beat on as far as I know and most stuff works on it. And the car can CORNER. About the best combo of practicality...handling...mpg...and style. Reliability according to ConsReports is only average for 03 though.

I'm beginning the process of redoing all the fluids....will start with the trans...drop the pan...new filter...3 new qts ATF....then later I'll flush out all 7 qts and add Mobil 1 synth ATF and Lubegard additive. Lubegard also has an ATF flush I might use.

Seems most mpg mods involve expected maintenance and should also result in greater longevity of components.

Need to redo the rear toe on my car...toe is ~ + 1/4" on both sides...which is a lot to expect the suspension flex and end up with the tire rolling straight. As far as I can tell...the procedure for adjusting the rear toe calls for removing the springs and setting the suspension at a certain height before re-tightening the eccentric bolt (after toe adjusted). Has anyone done this and gotten away with just re-tightening with the car sitting on the ground? I'm guessing that the control arm bushing is all rubber...meaning any flex is in the rubber itself????

Info here on alignment issues...bottom of the page...

http://www.focusfanatics.com/forum/s...=143550&page=3

Eventually want to free up the intake and exhaust..the car has the OEM plug wires and ?? plugs...PCV needs checking...might add a catchcan. Might use Motorsilk treatment in the engine and 0W30 synth oil....upgrade the filter. Flush the PS system and add Lubegard. Fuel filter.

Here are a few sites with info on mpg mods that probably work....


http://www.escortfocus.com/html/fuel_economy.html

http://ecomodder.com/forum/fuel-econ...ifications.php

http://ecomodder.com/forum/EM-hyperm...ecodriving.php
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2003 2dr ZX3 2.0 L Zetec auto 205/50/16s

...and I am unanimous in that position.

Last edited by frednumber15; 03-10-2011 at 03:52 AM.
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Old 03-08-2011, 04:49 AM   #5
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Bought a Scangauge...a device to monitor vehicle parameters...read trouble codes...helps with problem diagnosis and mpg....mpg mod testing. Problem is that I might have jumped the gun and probably should have bought an Ultragauge which does the same kind of thing...has a larger display...automatically scans your vehicle for sensors...where the Scangauge requires entering the right codes. The Ultragauge can be found for 40% of what the Scangauge costs. Scangauge might be more reliable...since it is probably near the end of its design life? SCIII near? The Ultragauge can be bought for the cost of some generic OBDII code readers though.

Not too impressed with the Haynes Focus manual 2000 thru 2007...not one line drawing it it...beats nothing though.

* Got the Scangauge...doesn't look like it's too difficult to set up. It installs nicely on top of the steering column. Have no CEL currently and haven't run the codes yet. Have found out that my coolant temp is running at only 164F...so definitely need a new thermostat...the low temp doesn't help mpg any.
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2003 2dr ZX3 2.0 L Zetec auto 205/50/16s

...and I am unanimous in that position.

Last edited by frednumber15; 03-11-2011 at 05:29 AM.
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Old 03-11-2011, 12:07 PM   #6
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Have the Scangauge installed and am currently configuring it...not too difficult...just a matter of adjusting SG speed reading to a GPS....and will adjust fuel use at next fillup. Also a few other settings need to be made.

Did find out that coolant temp averages around 182F when warmed up and varies from 172F to 202F. More worried about whether the fan runs or not. Temp gauge in the car reads left of center at 182F.

Looks like the car might manage low 40s mpg wise on a flat highway...time will tell. Last full tank came in at 27.7 mpg....some idling and so forth.
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Old 03-11-2011, 04:44 PM   #7
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It is absolutely normal for the coolant temperature to fluctuate. Thats why we refer to the dash gauge as a dummy gauge. The ultragauge is not offered in metric...what a bummer!
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Old 03-11-2011, 06:37 PM   #8
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Nothing is wrong with the temps- if anything, those seem a bit low. Your factory thermostat is a 194 degree if I recall correctly. Spend a few hours on the highway if you want to find a static temp. The fans won't come on until after you come to a stop and idle for a while. The fans don't do anything while you're moving.

I think as long as you're actually getting 38 mpg, you'd best leave it alone. There are Priuses out there that won't get that.
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Old 03-11-2011, 07:46 PM   #9
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Originally Posted by whynotthinkwhynot View Post
I think as long as you're actually getting 38 mpg, you'd best leave it alone. There are Priuses out there that won't get that.
Thats what I have to keep telling myself... I get 36 highway, yet I always expect for something to break on my excellently maintained 11 year old car. 166k miles.

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Old 03-12-2011, 02:44 AM   #10
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Quote:
Originally Posted by whynotthinkwhynot View Post
Nothing is wrong with the temps- if anything, those seem a bit low. Your factory thermostat is a 194 degree if I recall correctly. Spend a few hours on the highway if you want to find a static temp. The fans won't come on until after you come to a stop and idle for a while. The fans don't do anything while you're moving.

I think as long as you're actually getting 38 mpg, you'd best leave it alone. There are Priuses out there that won't get that.
Never got around to finding out what temp the thermostat was supposed to regulate at...good to know. So now I'd have to say the thermo IS off some...and the car's gauge is closer to right than not.

* Looks like Stant has a 180F and a 195F. Far as I know...they like to use the higher temp thermos in the North country. The 195F is also best for mpg. I must have the 180F installed.

Is the Ford thermo the most reliable?

And what controls the coolant pressure with this car....the coolant tank cap?

I shelled out for the Scangauge because I want to do mpg testing...but have to get the basics done first....like my leaky PS system.... thermostat...rear alignment....etc.
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