Diesel Mileage Question

I am getting 16 local, and 18-20 highway. The highway speeds I maintain to keep a high MPG is about 60-65. When I get up to 70+ is get 18 max.

My brother with the LLY 04 is getting 1-2MPG less than I.

My '04 Chevy 2500HD Crewcab 2wd with the Duramax and Allison gets me 17 during my morning commute (45 minutes, max speed 55) and 20-21 on the highway at 65-70mph. Every mph over 75 or so sees a decrease in mileage (the price you pay for driving a vehicle that big). At 80mph and I'm getting 14-15 mpg. I've never had any long distance sustained speeds over

Cheers - Jonathan

Thanks for the quick reply. I'm looking forward to the diesel truck.

I take it you are all pleased - I have heard of some problems with fuel injectors.

Dom

That is about what I get in city driving, 2004 Sierra Duramax LB7. Also about 15 to 16 pulling a 5000 pound trailer in the Rocky mountains.

Filled up this morning: $2.20 a gallon!!! - Denver area. Eight miles to FlyingJ where they have it for $2.12.

-- "Don't undertake a project unless it is manifestly important and nearly impossible."

-Edwin Land