MPG readout

From : steveb toquerville zionvistas

Q: i have a 2006 2500 with a cummins. on the overhead readout how accurate is the readout for mpg. when you punch it how long does it take until it gets to a steady reading thats accurate steve -- ...the man who really counts in the world is the doer not the mere critic-the man who actually does the work even if roughly and imperfectly not the man who only talks or writes about how it ought to be done. theodore roosevelt 1891 .

Replies:

From : fmb

i have a 2006 2500 with a cummins. on the overhead readout how accurate is the readout for mpg. when you punch it how long does it take until it gets to a steady reading thats accurate steve -- ...the man who really counts in the world is the doer not the mere critic-the man who actually does the work even if roughly and imperfectly not the man who only talks or writes about how it ought to be done. theodore roosevelt 1891 steve for some the overhead is somewhat accurate within 0.2 mpg. for the most of us though it is only a guideline to compare one tank with another; not that it is what you are getting but rather this tank is about the same as last tank. if you put in a programmer you can increase your overhead as much as 10 mpg but you wont find that anywhere close to reality. fmb north mexico with an 03 ctd ho .

From : steve lusardi

steve that is a loaded question that only you can answer. fill the tank zero your odometer and drive the tank empty and check. i caution you to also check the accuracy of both your odometer and your speedometer. to do that i use a sat receiver. if you find that either are off you can adjust this with a drbiii at your dealer. you can change the count of wheel revolutions per mile in the chassis computer. this will take several iterations but with patience you can get it spot on. if this is now correct your mpg number will be as well in the overhead console. this is necessary when you change your wheel or tire size. steve i have a 2006 2500 with a cummins. on the overhead readout how accurate is the readout for mpg. when you punch it how long does it take until it gets to a steady reading thats accurate steve -- ...the man who really counts in the world is the doer not the mere critic-the man who actually does the work even if roughly and imperfectly not the man who only talks or writes about how it ought to be done. theodore roosevelt 1891 .