Increasing mpg?

Jothmano · Joined: 23 Jul 2008 Posts: 2

I recently joined the forums and am getting an Xa soon (looking through the market). I know these cars get great mpg, but wondered once I get the car, what could I do to it cheaply or free to increase mpg even more?

I know in my old stang I took out the spare tire/jack and some trunk carpet and gained 1/2 mpg, so I was thinking that would be a start. Maybe I would look into a K&N hi-flow filter too.

Please give mpg gains with each thing done:
EX: Spare and jack removed + 0.3mpg

Thanks ahead of time!

duck_dodgers_24_5 · Joined: 03 Jul 2004 Posts: 9333

injen sri for the xA will improve your mpg a bit along with a header of your choice you can do a either a cat back or a axle back of your choice all of those will net you a decent increase of mpg...

Tercel95 · Posted: 7/24/08 6:09AM Post subject:

I put a full cold air intake on my car as well as a 4-2-1 header and an axle back exhaust and my car gets 40mpg or more now. BTW my car is for sale I am getting pretty desperate, let me know if you are interested.

Jothmano · Joined: 23 Jul 2008 Posts: 2

More stuff I heard about was:
-Running synthetic fluids (oil, transmission fluid if possible, etc)
-Checking tire pressure(s) and running them near their max
-And removing dead/useless weight if possible+

Anything else?

racerXa · Joined: 17 Dec 2004 Posts: 1463 Location: Azusa, CA

yeah dead weight helps out alot.. but I suggest hold on to the spare, try removing the back seats if you dont use them (just the top portion, so you don't get all the road noise)

DriverXa · Joined: 26 Feb 2007 Posts: 579

Change to full synthetic fluids, change your stock rims to some lightweight 15" rims, cai, header, axleback.

duck_dodgers_24_5 · Joined: 03 Jul 2004 Posts: 9333

with the cai i had it ruined my fuel economy even when i was babying it all the time it gave me poor results i'm very happy with my injen sri (aka hot-aire intake system) nets me around 33-35mpg for city driving

xaXA1138 · Joined: 16 Jun 2008 Posts: 63 Location: Gotham

Drive 40mph.

Ahahaha!

draxcaliber · Joined: 20 Sep 2006 Posts: 7673 Location: Maryland

get a scangaugeII, hook it up, shows you your instant MPG, and GPH so you can develop effective driving habits for getting the best mpg.

MaxiVisVires · Joined: 28 May 2007 Posts: 241 Location: San Diego, CA

Keep your car well maintained. Whatever Air system you go with, make sure that filter is clean. Check those plugs every 10k to make sure they aren't burnt out. Keep the fluids synthetic. And most importantly, keep it at 65! :P

mrexotica · Joined: 26 Mar 2007 Posts: 261

on my XA, I have superlight 10lb 15" wheels, an intake, header, exhaust, synthetic engine oil. Spare tire removed for racing.

while these all increase power much less than claimed (claims are for unmodified cars) My mileage hasn't changed significantly. Spare tire removal made hardly any difference. Hell-I take passengers along on my runs

The biggest difference is the nut behind the wheel. If you drive gently, your mileage will improve.

Super-Stormtrooper07 · Posted: 7/28/08 9:39PM Post subject:

mrexotica wrote:

The biggest difference is the nut behind the wheel. If you drive gently, your mileage will improve.

Definitly.

Along with:
*Light weight 15" alloys(13.5lbs or lighter)
*K&N or TRD drop in air filter w/ snorkle removal
*Irridium NGK spark plugs, gapped to .044
*36-40 psi air pressure
*lower it 1.5" at least
*romove the stock side mirrors for something lower profile
*do a coctail mix of 2-3 things added to your gas tank (acetone, synthetic 2-stroke oil- 3cc , and only run 87 octane.
*I have a project that I just finished, just need to post pictures here to update my info/ inform others here.

mrexotica · Joined: 26 Mar 2007 Posts: 261

do NOT put oil in your gas tank unless you want to replace your cat.

Super-Stormtrooper07 · Posted: 7/29/08 8:22AM Post subject:

mrexotica wrote: do NOT put oil in your gas tank unless you want to replace your cat.

2-3cc of a quality 2-stroke synthetic oil (Torco) is excellent for upper cylinder lubricant. Not all the time, mabe every 3-4 fill ups.

SatsumaxA · Joined: 26 Oct 2004 Posts: 191 Location: Louisiana

get one of these, actually help you drive better !!!

http://www.plxkiwi.com/

duck_dodgers_24_5 · Joined: 03 Jul 2004 Posts: 9333

for 150-200 dollars you can get a scan gauge II that'll do more

cobb · Joined: 16 Apr 2007 Posts: 1344 Location: Richmond, VA

Here is the real secret and you can paypal me 150 bucks for it. Push the gas petal no more than an inch and let the engine do the work, if its an auto let teh tranny do the work, if manual, shift when it reaches 3k rpms. Shifting early can cause poorer fuel economy than shifting late.

Super-Stormtrooper07 · Posted: 7/30/08 9:05PM Post subject:

cobb wrote: Here is the real secret and you can paypal me 150 bucks for it. Push the gas petal no more than an inch and let the engine do the work, if its an auto let teh tranny do the work, if manual, shift when it reaches 3k rpms. Shifting early can cause poorer fuel economy than shifting late.

That is too simplistic of an explination of the process needed to change ones driving habits to then inflict a change in better MPG.

Buy a scanguage, study your numbers, then you'll know what time it is.

irocz0r · Joined: 27 Jul 2008 Posts: 47

I hate the word "hypermiling"... it's just common sense.

cobb · Joined: 16 Apr 2007 Posts: 1344 Location: Richmond, VA

I can not figure out why I get such poor fuel economy. I let my car warm up or cool down the inside for 15 minutes, I shift at 5 grand if stick shift, I hold the petal to the floor if automatic til it reachs the speed limit and leave od off and I get such rotten fuel economy. You mean I need to get in the car first before starting it and only give it part throttle til I reach desured speed?

irocz0r wrote: I hate the word "hypermiling"... it's just common sense.