the inline design is ALWAYS more efficient than a v8, especially in
diesels. If you ever look at a 18 wheeler truck, ALL of them are in line 6
cylinders. I am trying to get ride of my Ford right now and buy a Dodge, more
power, better fuel mileage.
Both
the Ford and the DuraMax are 8 liter v8 diesel engines. The Dodge
Cummins is a 5.9 liter straight 6. My Dodge gets 22 mpg on the
highway and 18 around town. It gets 14 around town towing my
gooseneck Sundowner stock trailer. I don't know what it gets
with this trailer yet on the highway, but hopefully I'll find out this
spring. :) His Ford gets 10mpg around town, but he has a lead
foot.
Sounds like you are doing everything right. It may
just be the best the larger 8 liter v8 engine can do. The cummins has
plenty of power, btw. Mine is the year before the "high output"
option... I don't know what that does to the Cummins mpg.
Hope this helps,
Kathy Myers in Santa Fe, NM ps... the
straight 6 is a heck of an engine. We have an old jeep cherokee with
the 4.0 liter straight six. It now has over 210K miles. Our mechanic
here says he's seen them go 350K miles if they are taken care of. So,
that's my new goal for the jeep. pps... back in CA we would have probably
sold the jeep just because that's what people in CA do. Here in NM,
we'll keep it, repair it, and drive it. ppps... the Dodge has
over 180K miles already. I know of 3 now that have gone over
1,000,000 miles. Anyone know of a Ford or Duramax that went over
1,000,000 miles? That's my goal for the Dodge. pppps... is this what
they call endurance
driving?????
