SacRebel
Well-Known Member
There are dozens of threads talking about the poor gas milage of the trucks. I for one am only getting <12 mpg in mine. This got me thinking about the Start/Stop feature and how it plays a role in the mpg. Obviously the mpg calculation is based on actual miles driven but doesn't take into account idle or when the engine shuts down.
I saw a video a few weeks ago where someone was saying the older Hemi engines used 1.7 ounces of fuel during 90-seconds of idle. I don't know if that's true or not but there is some fuel lost during these idle times.
So with this said I think we also need to take into account the Time between fill-ups in addition to mpg. I know in my '04 1500 with a Hemi I would get around 6-7 hours (same mpg and primarily city driving) between fill-ups (same tank size). Since my truck only has about 500 miles on it it's too soon to get a feel for the number of hours between fill-ups. But I will certainly be taking that into account before whining about the poor gas mileage.
I saw a video a few weeks ago where someone was saying the older Hemi engines used 1.7 ounces of fuel during 90-seconds of idle. I don't know if that's true or not but there is some fuel lost during these idle times.
So with this said I think we also need to take into account the Time between fill-ups in addition to mpg. I know in my '04 1500 with a Hemi I would get around 6-7 hours (same mpg and primarily city driving) between fill-ups (same tank size). Since my truck only has about 500 miles on it it's too soon to get a feel for the number of hours between fill-ups. But I will certainly be taking that into account before whining about the poor gas mileage.
Last edited: