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  #1  
Old 02-24-2010, 08:22 AM
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Thumbs down Gas consumption on my jeep

Lately ive been having problems with my mpg on my car but i also noticed the other day that when i start the car a fuel dial goes down... as if its losing gas everytime i start it... has anybody had this problem before?
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Old 02-24-2010, 09:33 AM
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Re: Gas consumption on my jeep

well i heard a little bit about this. here were some suggestion from other members. Oil change, Spark plugs. i need to change my spark plugs soon too.
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Old 02-24-2010, 09:34 AM
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Re: Gas consumption on my jeep

what kind of mpg do you get? i started with 17 in the city and now im lucky to get 12 but it fluctuates in my head unit readings.
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Old 02-24-2010, 09:56 AM
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Re: Gas consumption on my jeep

Quote:
Originally Posted by violant00 View Post
Lately ive been having problems with my mpg on my car but i also noticed the other day that when i start the car a fuel dial goes down... as if its losing gas everytime i start it... has anybody had this problem before?
What do you mean "a fuel dial goes down"? Are you saying that when you start the Jeep the gauge on the dashboard moves around, up/down?
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Old 02-24-2010, 10:54 AM
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Re: Gas consumption on my jeep

Mine does that a little bit. Just a bit. If you want to help your MPG's those. Oil change, Change Air Filter, Fuel Filter, Spark plugs, Clean the throttle body and put smoe Fuel cleaner in the tank. It should help out a bit.
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Old 02-24-2010, 12:28 PM
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Re: Gas consumption on my jeep

yeah the head unit seems all inaccurate telling me im getting 11mpg and what i might by goes down as if the car is drinking my gas whenever i start it.
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Old 02-24-2010, 12:28 PM
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Re: Gas consumption on my jeep

like it will go down a whole tier sometimes and approximately i think im actually getting 9mpg... less then 200 miles with a full tank
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Old 02-24-2010, 06:56 PM
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Re: Gas consumption on my jeep

Well the first thing to ask your self is, when was the last time any of those things that paul mentioned was done on your jeep. If you cant answer to any of those then its probably a good idea to start some maintenance on it. Dont forget about the pcv valve also. Thats another CHEAP general maintenance item most overlook. When not functioning properly, will result in buildup of engine sludge and damage over time.
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Old 02-24-2010, 10:11 PM
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Re: Gas consumption on my jeep

Yeah im not really sure if the last owner did any of that stuff recently.... it all will be done soon. Atleast they took care of it cosmetically..
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Old 02-24-2010, 11:30 PM
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Re: Gas consumption on my jeep

As for your gas gauge that is something different. I think its the least on your priority list at this point in time. Take care of everything that was mentioned first. Especially use some good fuel injector cleaner in every tank of gas for a few treatments after you get all this done. It will also help clean that engine fuel system.
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Old 03-02-2010, 10:14 PM
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Re: Gas consumption on my jeep

Dont forget about the O2 sensor
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Old 03-03-2010, 01:32 PM
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Re: Gas consumption on my jeep

My first thought was if you park outside, are people siphoning your gas? lol
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