6.5TD MPG Hiway mileage Poll!

[acfloors]

I have a 2000 express 1 ton van with the 6.5L totally stock but for the K&N air filter. My best mileage to date was out west in nevada. I got just over 20 miles per gallon. I average 17 to 19 depending on if I run the cruise and keep it at or below 70mph.

[Robyn]

My 95 3500 DaHooooley crew cab 4x4 with 6.5 and 4.10 gears will run 18-19 at 60-65 running light

Robyn

[gerritk]

My numbers are like this:

1999 C2500 Suburban, 6.5TD with no engine mods of any kind, 3.42 rear in place of 4.10, 4l80e with no mods (but a deep cast aluminum pan), 23585R16E tires (Uniroyal Laredo cross country) at 65psi on stock steel wheels (245's are too small in diameter and too wide), 150,000 miles on odometer.

City 17.3 worst; 18.1 best (Houston area traffic)
Hwy 21.2 worst; 22.3 best (Texas Hill country to Flat Gulf Coast Interstate)

Keys I've found to mileage:
In the city: Gentle acceleration; as best you can, plan how you're going to make your stops in traffic (don't tailgate so you don't have to slam on the brakes).

On the highway: Cruise control at 65mph on the highway (about 1775 RPM on my rig).

Mighty happy with this from a land yacht:-)

[motown]

I'm going to pickup my new truck in dallas tx. here in a few weeks i'm driveing it home to frostburg md. its about 2000 mile drive it's a bonestock 1995 2500 ext.cab longbed 4x2 new motor exhast and tires i will post my results as soon as posible

[motown]

i got it home it didnt do bad the truck sat for 6 years with a blowed moter it had 83 miles on the new moter when i left tx. lift pump didnt work and the wastegate didnt work right still did prettygood on fuel