.....I NEVER did that again. I like my injectors to much 
Dually MPG???
New User
Joined: Mar 2010
Posts: 3
Likes: 0
I'm in Vancouver BC with an '07 4.10 DRW. I've got 22.5 inch rig wheels with 37 inch rig tires on and I'm getting about 10.5 to 11 MPG.
I run Diesel Kleen summer blend with every tank. Before the wheels and tires I was getting about 13 to 13.5.
I figure if I get rid of the EGR and install some higher performance injectors, I should see some improvement.
I run Diesel Kleen summer blend with every tank. Before the wheels and tires I was getting about 13 to 13.5.
I figure if I get rid of the EGR and install some higher performance injectors, I should see some improvement.
Elder User
Joined: Feb 2011
Posts: 564
Likes: 0
Another mileage thread. Comparing different trucks with different drivers in different locations in different weather conditions at different times is impossible.
The OP should buy something like a ScanGauge II. After calibrating the MPG features, set it up to show the average MPG per tankful along with instant mileage. Then, try driving to maximize MPG. I guarantee the guys who complain about low MPG compared to other drivers have absolutely now idea of what is required to squeeze more miles out of a tank of fuel.
Nobody knows how to drive economically unless they learn. You can't learn unless you can monitor how much fuel you are using real time. Drive carefully to 30 miles. Note your average MPG. Floor the truck from 0 -60 once and watch the average drop. Then, see how hard you have to work trying to nudge your tank average back up after that 10 second blast.
The OP should buy something like a ScanGauge II. After calibrating the MPG features, set it up to show the average MPG per tankful along with instant mileage. Then, try driving to maximize MPG. I guarantee the guys who complain about low MPG compared to other drivers have absolutely now idea of what is required to squeeze more miles out of a tank of fuel.
Nobody knows how to drive economically unless they learn. You can't learn unless you can monitor how much fuel you are using real time. Drive carefully to 30 miles. Note your average MPG. Floor the truck from 0 -60 once and watch the average drop. Then, see how hard you have to work trying to nudge your tank average back up after that 10 second blast.
Cargo Master
Joined: May 2006
Posts: 2,116
Likes: 6
From: Florida
I was waiting for that, I was going to say the same, I have a dually 4.10's and see the same mileage. and yes I can agree you. keep it around 2k rpms you'll get into the mileage sweet spot, any higher your mpg's drop. I have yet to tow my 35ft travel trailer but I expect to see around 10 mpg's
Cargo Master
Joined: May 2006
Posts: 2,116
Likes: 6
From: Florida
your gonna need to elaborate on that one. how big of a tank do you have? and what does that have to do with your injectors? forgive me for being slow
Posting Guru
Joined: Oct 2010
Posts: 1,192
Likes: 0
From: Kerrville, Tx
i see about 14.5 on a good day going down hill with the truck in N and the wind pushing me down the hill. i have seen it up to 18 before my 35's and im def dropping back down to smaller tires when these are done
Cargo Master
Joined: May 2006
Posts: 2,116
Likes: 6
From: Florida
I wonder if anyone has noticed a diff since we switched reluctantly to the ultra low sulfur fuel?
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Posting Guru
Joined: Nov 2008
Posts: 1,458
Likes: 2
From: CA Sacramento
Ok.. I have read all these post of guys getting 20MPG ... I have to think that there is something wrong with my truck... At 65MPH I'm lucky if I see 14-14.8 MPG steady cruise on highway... In the city 10MPG .... At any highway speed over 75MPH the mileage drops into the 12MPG range.....Is this normal.. I run Diesel kleen in every tank full... keep it well maintained... Its a 2005 F350 ,DRW(4.10) ,Auto, CC with a leer high cap... These are MPG unloaded...
Thoughts??
Thoughts??
Syn 5w-40 engine oil.
Syn in the differentials.
Custom tuning, SCT.
FICM tuning.
Egr delete or block, bock the up-pipe and cut the scoop out if you do not want to remove the egr cooler.
Clean the intake manifold because of the build up the egr system produces.
Street friendly tires.
Cat and muffler delete pipes to keep more low end TQ. 4" or 5" systems will give you higher rpm TQ. Lower rpm power is where the mpg is.
How many miles?
Another option is to buy the powermax turbo, BUT!!!...
If you turbo is still good or it just needs to be cleaned do not buy it just for mpg... Do it to replace your turbo. It would be wasteful to spend ~1,500 on a turbo just for mpg even though the stock turbo is still alive. The powermax is less restrictive compared to the stock, that is why it helps mpg a little.
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