I just bought a 2008 F-550 w/6.4 diesel.Its getting 8.3 mpg...Surely by now someone has the answer to get these 6.4 s better fuel mileage....
Sure would appreciate ideas from the people that have been successful at this....PM e-mail to n4gnr@windstream.net
thanks,, Dan

 

Man, these topics are really starting to get old...

 

you can tripple your milage by simply pushing the truck were ever you want to go.

 

keep rpms around 1500, stay off the boost, change your gear ratio..drive like granny

 

LOL @ cheezit