Survey; Towing MPG for the 6.5 TD.

[great white]

Looking for numbers on what we're all getting when towing with the 6.5


Vehicle;

Year -

Type -

Mileage -

Auto or manual-

4x4 or 2wd -

Final gearing-

Trailer;

Type (travel trailer, fifth wheel, faltbed, etc) -

Average weight -

Length -

Height-

Width -

Geography;

Flat tow - Y/N

West coast mountians - Y/N

East cost Appalachain - Y/N

High altitude - Y/N (what Heigth?)

Sea level - Y/N

Additional Info;

Feel free to chuck in any other info you feel pertinent. IE; headwinds, tailwinds, truck modifications, etc.


Miles per gallon / litres per 100 kms;

Low -

Average-

Best -





I'm planning on my 98 6.5 getting an average of 8 mpg highway cross continent puling about a 8000lb 25 foot TT in all conditions and 7 MPG city.

Hopefully better, but please lord, no worse

Just wondering what everyone else is getting.....

 

[great white]

I'll get it started off with my info:

Vehicle;

Year - 1998

Type - GMC Sierra K2500

Mileage - 412000kms

Auto or manual- auto

4x4 or 2wd - 4x4

Final gearing- 4:10

Trailer;

Type (travel trailer, fifth wheel, faltbed, etc) - Travel trailer

Average weight - 8000 lbs

Length - 35 feet

Height- 9 feet

Width - ?

Geography;

Flat tow - yes

West coast mountians - yes

East cost Appalachain - yes

High altitude -yes

Sea level - yes

Additional Info;

Truck modifications as per sig line.

Miles per gallon / litres per 100 kms;

Low - still waiting to find out towing

Average- still waiting to find out towing

Best - still waiting to find out towing

 

[handcannon]

Here's my info.

Don



Vehicle;

Year -1994

Type -Chev K2500 Silverado

Mileage -234,000 miles

Auto or manual-4L80E auto

4x4 or 2wd -4x4

Final gearing-4.10 with 265/75/16 tires

Trailer;

Type (travel trailer, fifth wheel, faltbed, etc) -bumper pull travel trailer

Average weight -about 5K+ i think, never weighed seperately, just under 12K loaded with truck loaded

Length -25ft
Height-8.5ft

Width -8ft

Geography;
I have info for only two trips with this trailer. One to the coast and one to a central OR hunting trip. Both trips have a few non-towing miles mixed in.

Flat tow - Y/N

West coast mountians - Y/N yes, home is about 230ft elevation, Hy 20 to coast is about 2000ft max and 70 miles, Hy 20 to central OR hunting area is just under 5000ft and 180 miles. The first 30 miles for each trip is flat land. The central Or trip has about 75 miles of good highway but mountainous terrain, then 3000ft + or - elevation with some easy to moderate elevation changes.

East cost Appalachain - Y/N no

High altitude - Y/N (what Heigth?) some 2-5000ft areas

Sea level - Y/N some

Additional Info;

I have info for only two trips with this trailer. One to the coast and one to central OR. Both trips have a mix of about one third flat land, one third flat to moderate climbs, and one third moderate to hard climbs. Both were in cooler fall and winter weather conditions.

My truck is set up with many similar items to your truck (see my sig). The biggest difference between the two that could impact towing is that I don't have WMI.

Feel free to chuck in any other info you feel pertinent. IE; headwinds, tailwinds, truck modifications, etc.


Miles per gallon
Low -

Average-to the coast-11.68 MPG and trip to central OR- 11.63 MPG. Both had a very small amount of non-towing miles mixed in.

Best -

 

[Edzzed]

Year - 1998

Type - gmc 3500 dually

Mileage - 242,000 KM's

Auto or manual- Auto

4x4 or 2wd - 4wd

Final gearing- 4.10

Trailer

Type (travel trailer, fifth wheel, faltbed, etc) - Bumper pull trailer

Average weight - 7,000

Length - 24ft

Height- ?

Width - 8ft

Geography;

Flat tow - Y/N some

West coast mountians - Y/N Oh ya

East cost Appalachain - Y/N Never

High altitude - Y/N (what Height?) 1400 meters

Sea level - Y/N some but not much

Additional Info;

Feel free to chuck in any other info you feel pertinent. IE; headwinds, tailwinds, truck modifications, etc. read sig


Miles per gallon / litres per 100 kms;

Low - ?

Average- ?

Best - ?

I got about 11.48 imperial MPG or 9.56 US gallons. This is with a truck that weighs 1690 front wheels, 2360 rear wheels, 2290 trailer and all in Kilograms. Maybe that ATT is helping with mpg

 

[bfourman]

Vehicle;

Year - 1996

Type - Chevy K2500

Mileage - 160k

Auto or manual- Manual

4x4 or 2wd - 4x4

Final gearing- 4.10

Trailer;

Type (travel trailer, fifth wheel, faltbed, etc) - flatbed, TT.

Average weight - Flatbed; 5k. TT; 6k.

Length - Flatbed; 20'. TT; 26'.

Height- Flatbed; depends on the car being hauled. TT; highest point 9'06".

Width - Both trailers max standard width.

Geography;

Flat tow - Y, includes Midwest versions of hills. Not much elevation change.

West coast mountains - N

East cost Appalachian - N

High altitude - N

Sea level - N

Additional Info;

Feel free to chuck in any other info you feel pertinent. IE; headwinds, tailwinds, truck modifications, etc.

Truck mods in sig. Trips with TT include 2 adults, 3 small kids, bikes, firewood.


Miles per gallon / litres per 100 kms;

Low - 8ish with a lot of in town.

Average- 11

Best - 13.5. This was with the flatbed carrying a modified Jeep Cherokee, early March. All highway, Jeep was used for transportation when we got there.

 

[WarWagon]

I'm planning on my 98 6.5 getting an average of 8 mpg highway cross continent puling about a 8000lb 25 foot TT in all conditions and 7 MPG city.

Hopefully better, but please lord, no worse

I would look at worse of 7.5 MPG highway and 1 quart of oil every 500 miles.

Vehicle;

Year - 1993

Type - K2500 ext cab longbed.

Mileage - 125K, same results with similar truck with 174K and on fire blowby. Same results with fresh 30K mile engine.

Auto or manual- Auto

4x4 or 2wd - "K"

Final gearing- 4.10

Trailer;
24' and 28' enclosed cargo 4200 lbs dry with 2000 average load in it.

Height- 8'

Width - full

Geography;
Uphill both ways.

Flat tow - Y/N Both

West coast mountians - Y

High altitude - Y/N (what Height?) Yes. Turbo runs out of air and will smoke when I get no smoke in Phoenix...

Additional Info;

SPEED!!!
62 MPH best towing economy for my gearing as engine is around 2100 RPM.

Total weight of "cargo" affects MPG when the trailer is the same.

Turn up the boost and fuel screw 1/3 turn - gain MPH but MPG stays the same.

Same route every weekday as mods were added.

4" exhaust with 3" downpipe, no kitty factory, 3" crossover, snorkel removed. New CDR. Cooling upgrades and 180 T-Stat.

Miles per gallon / litres per 100 kms;

Low -
Towing 10% grades:
7.5 MPG

Average- There is no average.

Best -
Flat runs out west 11 MPG

Unloaded, no trailer, 15 MPG.