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Fuel System All Fuel Discussions. MPG - Mileage - Fuel System Maintenance including Air Filter Replacement.


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  #1  
Old 04-22-2010, 08:28 PM
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Default Worse Mileage

Hey guys i ve been noticeing my ram is getting bad gas mileage right now even for a ram. I drive about 85-100 km a day for school which usually is about an 8th of a tank. The last little bit its been about a 1/16th of a tank more now i know this is just small numbers but that is about 7 litres more fuel used. Coming up on an oil change in 2000km. Just wondering what may be wrong or if i just need filters changed/ air in the tires. Dad borrowed it today for proly a 20km run max and it almost crushed an 8th of a tank he does drive it harder then me ive noticed but even then that cant be healthy.
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Old 04-22-2010, 08:33 PM
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I would check the air in the tires, check the air filter, and get that oil changed. I'm not sure, but it may be a little early to change the spark plugs, but if everything else doesn't work, it's another possible option.
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Old 04-22-2010, 09:25 PM
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Cadet has some good ideas there, the most likely culprits more than anything mechanical.
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Old 04-22-2010, 09:29 PM
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I just did an induction service on my truck, your supposed to do it every 40,000km. After I did it the truck ran great I also gained about 2 MPG. I would suggest going to do that as well. I cant believe how much smoother the truck runs actually. It cleans the throttle body, injectors and some other components. Really opens her up!

I would also look at changing the spark plugs and cleaning the air filter.
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Old 04-22-2010, 10:58 PM
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I don't believe in trying to use the fuel guage to guess mileage. The ONLY way to check mileage is to; fill the tank, drive, fill again, divide distance driven by amount of fuel used. This is the only way to truly know your mileage for the fuel used. Air in the tires should be right at all times anyway.
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Last edited by Studbuster; 04-22-2010 at 11:01 PM.
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