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MPG Increase


hilltopfarm

Well-Known Member
Joined
Aug 30, 2011
Messages
173
City
NW WA
Vehicle Year
2003/1988
Transmission
Manual
Hi,

What would you guys suggest for increasing gas mileage. I looked at e3 spark plugs, performance ignition etc... I already have pacesetter headers w/ high flow magnaflow exhaust. I get anywhere from 17-22 MPG. Would like to get 25 or so.

Thanks!
 
google toyota prius.

for an 88, thats as good as she gets! id reccomend using the search bar, as this question gets asked 3 times a day, every day.

e3's are junk, had em, threw them out. drop a 4cyl in it and you should get that mpg. my favorite and fool proof way of getting the best mpg is to park it in your driveway.....

































and walk.

:D
 
2 cans of B-12 Chemtool fuel system cleaner added to the gas tank. For some reason, when I did this, my MPG jumped from 21~22MPG city to 25MPG city.
 
You have a truck....drive downhill everywhere....great gas milage that way. Headers do not really increase gas milage by much, they do increase performance (HP). Remove the headers and you will get better MPG. Some of my buddies yanked their headers and put a free flow exhaust system on and they notice performance and gas milage increase on their V8's and their V6's cars and trucks. What kind of headers do you have?
 
how old are your O2 sensors, worn o2 sensors can send a "lean" signal to the ECM, thus sending it more fuel.. you could probly get 25mpg in a 2.9 easly if you were a single cab/2wd, and a 5spd manual helps too. just curious, what are your vehicle specs?
 
Go down hill more.
 
25 mpg's are the most you'll get out of it,if that.If you want better mileage then do the speed limit,simple as that!It's a truck not a commuter car.
 
Last edited:
Yea, unless you live in a very flat area or somewhere that you can always travel downhill, don't expect over 21 mpg even with a 4-cyl around town. The problem is compounded by the fact that they put ethanol in our gas now and that stations are authorized to put up to 15% ethanol in the gas. Ethanol is not as effective as gas for powering a vehicle, it tends to separate from the gas (and lay at the bottom of the tank where your pump can suck it up) and it attracts water.

In my '00 Ranger I was getting 21-23 mpg around town out of a 6-cyl and up to 31 on the highway, pre-ethanol. Despite my truck being billed as a "flex-fuel" that can run ethanol, when stations started putting ethanol in the gas my fuel economy dropped to 17-19 mpg around town and around 24 on the highway.

For an older truck (like an 88), it might help to give it a good tune-up, maybe run some double platinum plugs, new fuel filter, new air filter, clean the idle air control valve, new o2 sensor, and have your TFI module tested (Autozone I know can test them). I went through all of that on my F-150 just recently, got me another mile or two per gallon and a bit more go. My truck ran, but the TFI module failed something like 4 out of 8 tests.

Those e-3 plugs? I wouldn't use them on anything except maybe a lawn tractor. No joke.
 
how come you gotta bring up the Economy in an M.P.G. thread??????????????

Because DG, even in the MPG thread, it's all about economy.
 
Because DG, even in the MPG thread, it's all about economy.

:icon_surprised:



:bawling:




you didn't have to be so rough on me........................
 

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