Originally Posted by nobagger
Our 06 250 SD has a 5.4L with a K&N air induction kit and a super chip and it seems to get 10-12 no matter what its doing, even empty. Our enclosed trailer is 24ft long and always loaded with equipment totaling (with trailer) about 8k. Our 05 F350 SRW has a 6.0L PowerStroke and we just got it so I can only guess from what Ive read and heard expect to get mid teens. I think for around town towing and occasional hi way towing your better off with a V-10, Ford's V-10's put out almost 500lbs of torque!
I had a 05 6.0 1 ton I put a programmer on it and it would pull a building down! I would put about 25,000-30,000 that thing and run 80 and never miss a beat. UnTIL the dumb thing cracked the head. I would 20 MPG empty no matter were I went.
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