Drove 1000 miles this weekend. 14 MPG hand calculated. I din't hink that was too bad. Big difference between 65MPH and 80 MPH!!!

3.73 F-250 Crew

 

I find if I keep the cruise control on 65 mph I get about 17 on the highway. All you have to is let your right foot get into it a little bit and mpg drops like a rock. I've read other posts that say keeping the boost at 10 and under makes a big difference with mpg's, and my experience says that they are right.

 

How do you keep the boost low? Excuse my ignorance, this is my first turbo.

 

turn ignition counter clock wise as far as it will go. that is the only I have found

 

LOL!!! I agree turn the key off. You need to be real sensitive with your right foot and watch the RPM"s and the Boost Pressure. At times I have felt like I was going to get run over doing this. Just shut up and drive and pay the price of diesel.

 

I have heard the guys on the 7.3 forum talking about adding 2-stroke oil to your tank and picking up 1-2 mpg.

 

OIL = soot=dead DPF. Don't do this with a DPF engine unless you want to clog DPF up.