MPG's dropping and i cant figure out why.
#1
MPG's dropping and i cant figure out why.
So about 3 weeks ago i started noticing i wasnt getting the mileage out of my truck like i normally do. i was getting around 18-21 depending on what i was doing. the truck has 152,000 miles and i have always had about the same gas mileage. it has a exhaust, intake, airdog, etc. most everything everyone does now days except for i still have stock injectors and vp44. im now getting 14-15 mpgs now matter how i drive. i have put all new filters in it. got it aligned. changed the oil. cleaned the batteries. Anything i can think of to help bit nothing is working. I still have the same power with no weird loping or anything that would tell me that its the vp44. I always run a bottle of injector cleaner through about once a month. Im doing everything like i was before, even better in some areas but nothing. The only thing i have noticed is that when i get into the higher rpms the mileage drops quickly so im wondering if it might be the turbo? I need help guys. I cant afford to drive her like this. Its killing me. Please, any help would be much appreciated.
#2
#5
#6
But i have never had any problem with the cold before. It has been 22 below sometimes back home in colorado and this never happened. I was also wondering if changing the diff fluids, transmission, and transfer case would help? it just feels like something is holding the truck back. i was planning on going home next month on leave but now im thinking i wont be able to because i might need the money to fix whatever is wrong.
#8
X2 im in the same boat with mine 14-15mpgs cant figure it out either. And was going to try to check the valve adjust on mine it has 115k on it now I dont think that they would be too far out of adj would even slight out of adj'ed valves cause that low of mpg I talked to a guy today that has an 02 like mine with an auto trans tho and has 165k and he said he's getting 24-26 mpg made me real envious i would be happy to get atleast an average of 20-22 any more thought on what we might be able to do or are overlooking?
#9
20-22mpg on the highway is pretty dang good for a 7000lb truck.
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MIKE3822
24 Valve 2nd Gen Dodge Cummins 98.5-02
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11-04-2014 07:34 AM