Incredibly low gas milage - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-03-2006
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Incredibly low gas milage

I used to be able to drive my truck to school, work, and back home, plus around town for a bit after school somedays, and a tank of gas would last me about a week (town is only 8 minute drive)
I took the truck out this week, from a half a tank, I put 160km on it, and it's already sitting on empty. Is this just because of the winter, or could there be a tear in the fuel line or something, cause it never used to be this bad.
thanx
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Old 04-03-2006
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it might be "bad" gas. i had this same thing about a month ago..... a tank only last 180 miles, and my next tank was 160 miles, and i wasnt doing anything to make it go down.... but after a couple fill ups it cam back to 260miles where it should be. tho this last tank lasted 320 miles cause it was all highway
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Old 04-03-2006
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ya, you gotta run more then one tank before i would start worrying.

any idea on what the km to miles ratio is?

Try running a higher octane gas every once in a while...that helps sometime
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Old 04-03-2006
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its probably just bad gas. but if the problem doesnt go away i would say check your air filter, might be time to change a fuel filter, low on oil or need to change it i know that when i get around 2700 miles on a oil change my mpg starts going down hill.
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Old 04-03-2006
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I had that when i used costco gas when i first got my truck. After a few tanks of shell i was back up to where i used to be
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Old 04-03-2006
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160km off a half tank.......yeah, that's sucks for sure, but can be possible if you drive it pinned and fly around. 250km is a good half tank number. During the summer I'll get 500km a tank no problem. The winter gas and temp in the winter just kills the mileage.
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Old 04-04-2006
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I used to get decent milage earlier in the winter, but the last five times I filled up at husky and esso and it's been terrible. I have to change my fuel filter soon anyways, so when I do, I'll run a tank of shell premium through.
Thanks Guys
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Old 04-04-2006
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Quote:
Originally Posted by rangererv
ya, you gotta run more then one tank before i would start worrying.

any idea on what the km to miles ratio is?

Try running a higher octane gas every once in a while...that helps sometime
A good ' guest-a-mation ' is a 5/9ths or 9/5th conversion for metric to SAE.

160 kilometers = 99.419 miles

http://www.onlineconversion.com/ <-- good site. I'm used to Kilometers from Living across the pond. The metric system is nice, however its not accurate at all when it comes to ' fine ' tuning items.

The theory of winter elements and the ' type of gas ' or ' quality ' of the fuel being used should be put into the equasion as well. With the season changing, who knows what they are putting in the pumps.

I used Sunoco 104 this past weekend driving to Rochester I pulled 210 miles to the tank which seems about ' average ' for my vehical ( 16 gallon tank , 13mpg on the highway, 9-10mpg in the city ). With 91/93 I will average a lil bit more.

Last edited by D.; 04-04-2006 at 08:47 AM.
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Old 04-04-2006
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One of the most beneficial things you can do is to run injector cleaner often, and preferably to run Ethanol as much as possible. Keeping the MAF clean helps, and a lazy o2 sensor can play with mileage. Low quality fuel can play a major role, but octane rating really isn't the thing you need to know, and premium will not give you more power nor will it increase mileage unless pre-detonation is an issue. Have you noticed any power loss?
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Old 04-06-2006
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Ethanol will lower mileage as it has less potential power per gallon..
This is why E-85 fuel gets MUCH worse gas mileage vs gas.

Oh and D. .62mi=kilo so 6/10 is much closer than 5/9 and easier to figure in your
head :)

Rand
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Old 04-06-2006
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I'm aware that alcohol produces less thermal energy than gasoline, however it does help maintain your fuel system by keeping it cleaner, and this IMO is far more beneficial than the slightly higher energy content of gas.
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Old 04-06-2006
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Quote:
Originally Posted by Smitty
One of the most beneficial things you can do is to run injector cleaner often, and preferably to run Ethanol as much as possible. Keeping the MAF clean helps, and a lazy o2 sensor can play with mileage. Low quality fuel can play a major role, but octane rating really isn't the thing you need to know, and premium will not give you more power nor will it increase mileage unless pre-detonation is an issue. Have you noticed any power loss?
nope, no power loss
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  #13  
Old 04-06-2006
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I don't think I'll get 300Km off this tank. It's been all city driving, but I was wondering with everyone how long a brand new truck takes to break in before it starts to get it true gas mileage?
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  #14  
Old 04-07-2006
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My cousin's '04 Ranger had to hit about 40,000 before he noticed an increase. My F150 gained a couple at around 50,000. I think it depends more on how it's serviced and driven though.
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