lw freightliner mpg?

You will need to find the right grove to get the best mpg from yor truck speed shifting ect... but I wouldn't complqin too much about 6.9

 

In colder weather your mpg will be lower, it also depends on the weight your pulling and the terrain your on, wind, etc , also it seems like the first 100 miles or so after you fuel the qc shows a lower mpg, and remember shifting too low can use more fuel, I shift around 1200 and right now I'm at 7.8 at 79900 in a condo

 

You're getting winter blend fuels right now that have a lower cetane rating... that will lower your mileage, as will colder temperatures, and especially winds. The only good wind is a tail wind

Make sure the weight on your drives/tandems is balanced... you want the excess weight on the drives. Pulling a tail-heavy trailer around will kill your fuel economy. Check your tire pressure regularly, that's another one. Going from warmer to colder temps will lower your pressure about a pound for about every 4 degrees colder.

Slow down... you gain about 1 mpg for every 10 mph slower you run. If you don't need the speed to make an appointment, 55 or lower is best. Also, the more turbo boost you use, the higher your fuel consumption will be. You're better off downshifting early, than putting your foot into it and trying to power over the hills. Learn to take hilly country on the pedal. Your cruise control is a fuel hog when it hits hills.

 

Yeah the winds are a biggie. I'm usually around 8.5 to 8.8 mpg in my LW. Hit flatland Indiana a few days ago dropped it to 6.5 to 7 through the state. Bucking 20-25 mph winds is a real fuel killer.