Ok ok I give in

[Ontario Outlaw]

Alright @ironpony and @Mike I signed up for fuelgauges at letstruck.com. I'm not sure right now being so cold and idling a lot that it's a fair way to start things off.

First tank got me 4.54 mpg

I'll try to be diligent for the next 3-4 months to get an accurate overview.

 

[Ontario Outlaw]

Plugged in some old numbers I had written down from last year. Looks like 6.14 mpg was the best I got on one fill up.

My worst is the last one, at 3.90 mpg. Which isn't surprising.

 

[Duck]

Plugged in some old numbers I had written down from last year. Looks like 6.14 mpg was the best I got on one fill up.

My worst is the last one, at 3.90 mpg. Which isn't surprising.

This tree hugging "efficient" T-680 is getting low 5's but it's probably because of all the idling.

 

[Rigjockey]

This tree hugging "efficient" T-680 is getting low 5's but it's probably because of all the idling.

It must be the idling. My friend and I had the same trucks T680 doing the same loads in the hills of PA. He was getting 9's and I was around 7-7.5 but I am a far more aggressive driver than he is.
I rolled up on him in PA and hollered on the radio, "hey. company name why in the fuck are you holding up traffic?" (we where the only ones on the road for miles.)
He said "what?"
I hit the interior light and flipped him the bird as I passed him with a smile.
Good times!

 

[Sinister]

This tree hugging "efficient" T-680 is getting low 5's but it's probably because of all the idling.

Van Wyk don’t have APUs?

 

[Ontario Outlaw]

Am I better off with a fuel pressure gauge, or a fuel restriction gauge?

 

[Ontario Outlaw]

Well I'm averaging 4.42 mpg for the last 30 days. 4.28 last 60 days

Last week coming north loaded light, full tanks were up to 5.82 mpg.

Now I'm back to 4.26. LOTS of hills and hard pulls the last 3 days, and dragging a trailer with an 8' high headboard acting like a huge wall for wind to hit.