diesel MPG

[J20 project]

My 05 CTD gets 18-19 @ 75mph or less, and gets 16.6-17 @ 80 mph on the freeway. I did get 20 once, downhill all the way from Tahoe to Sacramento.
J20

 

[Jeeptj98]

When I was driving out to the west desert a week ago, I put it on Cruise Control at 65-70 and was getting around 24mpg. This is by far the best I have ever got. I usually get around 14-16. I think I learned if you stay off the skinny pedal it helps.

 

[78mitsu]

2001 duramax/allison1000 with 2003 motor and electronics - 22-23 unloaded under 85 and 17-19 w/ 6000 or less 14-15 10000.

 

[Milner]

Trip comuter milage is meaningless....True mileage has to be figured manually for several tanks and averaged.
Sure there are times we all can get 20 + towing....down Parely's.
Went do you get for a full tank, week after week, or trip after trip??

(this is not directed at anyone/I am not calling anyone out....just think about it)

 

[Jeeptj98]

Trip comuter milage is meaningless....True mileage has to be figured manually for several tanks and averaged.
Sure there are times we all can get 20 + towing....down Parely's.
Went do you get for a full tank, week after week, or trip after trip??

(this is not directed at anyone/I am not calling anyone out....just think about it)

I agree 100% all I use is Manual figures.

 

[James K]

(this is not directed at anyone/I am not calling anyone out....just think about it)

sure............right..........sounds like a call out to me.

 

[DrMoab]

Trip comuter milage is meaningless....True mileage has to be figured manually for several tanks and averaged.
Sure there are times we all can get 20 + towing....down Parely's.
Went do you get for a full tank, week after week, or trip after trip??

(this is not directed at anyone/I am not calling anyone out....just think about it)

Checking manually in my 05 CTD I get 18-20 driving nice all freeway driving. Thats on a trip all around 70 MPH. Towing my jeep I get 14-15 depending on conditions.

Going back and forth to work everyday letting it warm up about 5 min then a 17 min commute I get 15-17 MPG

 

[78mitsu]

Trip comuter milage is meaningless....True mileage has to be figured manually for several tanks and averaged.
Sure there are times we all can get 20 + towing....down Parely's.
Went do you get for a full tank, week after week, or trip after trip??

(this is not directed at anyone/I am not calling anyone out....just think about it)

I do it all the time, I keep a running tab. A significant drop in mileage is an excellent way to spot some emissions problems. also most chevy trucks don't have mileage counters.

 

[MR.CJ-7]

I average 16-17 in my 6spd psd. Thats a mix of city/highway unloaded. If I put the camper and boat on then hit the road I see 12-14.

My best tank ever was strictly highway driving for about 300 miles at 55mph (through a very long construction zone) I turned out 22mpg.