4.0 gas mileage went way up! - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #1  
Old 06-26-2009
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4.0 gas mileage went way up!

i put a full can of seafoam in the tank with 87 octane. and usually it burns a quarter tank for every 50-55 miles or even less with how crapy gas has been lately. well right now im at right over 80 miles on the tank and it just got to 3/4. weird thing is i didnt see anything on the can that said it would increase the mileage. i have done this one time before and got the same results. it did NOT do as good with 93 the one time i tried it though.

Last edited by OVERtheEDGE; 06-26-2009 at 01:00 PM.
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  #2  
Old 06-26-2009
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Someone had a light foot this tank

My 3.0 has been going 300 miles before the light comes on. Not to shaby I guess.
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  #3  
Old 06-26-2009
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Originally Posted by jlstang351 View Post
Someone had a light foot this tank

My 3.0 has been going 300 miles before the light comes on. Not to shaby I guess.
im usually luck to get 210 220 out of a tank. no matter how i drive.
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Old 06-26-2009
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in between 260 and 290 is the norm for me. a little over 15 gallons
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Old 06-26-2009
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Originally Posted by OVERtheEDGE View Post
im usually luck to get 210 220 out of a tank. no matter how i drive.
Ouch that sucks dude! oh well gotta pay to play.
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  #6  
Old 06-26-2009
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you aint lying! 4.0 ohv and a 16 gallon tank=ALOT of gas
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Old 06-26-2009
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i got 550 kms outta this tank. what is that in miles?
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Old 06-26-2009
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i got 550 kms outta this tank. what is that in miles?
roughly 330ish
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  #9  
Old 06-26-2009
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Yeah I get like 230mi per tank.

I hate my truck sometimes lol.
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  #10  
Old 06-26-2009
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I rarely get less than 300 miles a tank from my 01 4.0 4X4 on 31s. I filled up a few days ago and had 328 miles on that tank and the light had just came on.
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Old 06-26-2009
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Around town driving I average 260 miles then the low fuel light pops on. If it's almost all highway and I cruise around 65mph I can get 300-330 miles per tank!
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  #12  
Old 06-26-2009
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Quote:
Originally Posted by OVERtheEDGE View Post
you aint lying! 4.0 ohv and a 16 gallon tank=ALOT of gas
I have the 19.5 gallon tank and can't go that much farther than you lol.
I'm good for 14.5 city and 17 freeway. Thats on new plugs. I need to change my O2 sensors
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Old 06-26-2009
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I wouldn't get too excited about it yet. My gas gauge changed on me about a year ago, and a quarter of a tank was no longer the same quarter of a tank that it used to be. It was like it got hung up at a quarter of a tank. Still got the same gas mileage on the entire tank though. I wouldn't think too much about it until you run the whole tank and calculate the actual gas mileage.

I hope it went up though.
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Old 06-26-2009
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I just filled up today, and figured it at 17 mpg. Mostly city, with the A/C on all the time. That's pretty typical for me.
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  #15  
Old 06-26-2009
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I usually get about 12 or 13 mpg. And about 215 miles before I fill up. Maybe I should try this seafoam stuff. Whats the best brand and place to get it?
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Old 06-26-2009
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I usually get at least 300 miles a tank, but I have a 19.5 gal. tank. That's at least 17.5 + mpg.
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  #17  
Old 06-26-2009
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Mine averages 17 mpg with mixed driving, 19ish Highway. Just converted that from metric. Did not know what it was in mpg just how many km's i got out of a 55L fill up!! Seems average from this. That is with iridium plugs, exhaust and programmed with a performance setting, but I also have a heavy foot.. I should see what i can get out of the fuel economy tune
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Old 06-26-2009
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Quote:
Originally Posted by icthusrulz View Post
I wouldn't get too excited about it yet. My gas gauge changed on me about a year ago, and a quarter of a tank was no longer the same quarter of a tank that it used to be. It was like it got hung up at a quarter of a tank. Still got the same gas mileage on the entire tank though. I wouldn't think too much about it until you run the whole tank and calculate the actual gas mileage.

I hope it went up though.
Mine is kind of weird like that too. I will go 50 km before the needle even budges, but at quarter tank I will barely get 70 k out of. The lower it goes the faster it drops.
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  #19  
Old 06-27-2009
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mine tends to do that. but after driving it a lot yesterday im sitting at about 150 miles on that tank and everything still looks better than normal. i only went back and fourth all day yesterday burning out all my gas.
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Old 06-27-2009
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Just a word to the wise, base milage on no less than three tanks of fuel. There are too many variables on just one tank. Let alone the first 1/4 of one.

Rich
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Old 06-27-2009
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I can't wait to do this to mine. I did it last august, put it through the vac line and the gas tank it did wonders for my mileage. Just got to make sure you replace the spark plugs when you seafoam it through the Vac Line. Right now I'm getting 12 miles to the gallon, really bad I know.
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  #22  
Old 06-27-2009
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Quote:
Originally Posted by wydopnthrtl View Post
Just a word to the wise, base milage on no less than three tanks of fuel. There are too many variables on just one tank. Let alone the first 1/4 of one.

Rich
ok, thanks thats probably a good i idea. ill keep track of everything and see what it comes out to be.

i do have larger that stock tires so what do i need to multiply the odometer by to know how many miles i have actually gone?
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  #23  
Old 06-27-2009
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Quote:
Originally Posted by cchsbuzz19 View Post
I can't wait to do this to mine. I did it last august, put it through the vac line and the gas tank it did wonders for my mileage. Just got to make sure you replace the spark plugs when you seafoam it through the Vac Line. Right now I'm getting 12 miles to the gallon, really bad I know.
i didnt replace plugs on anything i did it to. including my truck
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  #24  
Old 06-27-2009
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wow im only getting about 180 out of a tank with my 4.0 SOHC
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  #25  
Old 06-27-2009
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wow im only getting about 180 out of a tank with my 4.0 SOHC
you must push that thing pretty hard to get that!
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