05 f250 crew sd 4x4 milage

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05 f250 crew sd 4x4 milage

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Ford Forums >> Ford Trucks, Ford Vans & Ford SUV's >> Ford F-250 & Ford F-350 >> 05 f250 crew sd 4x4 milage

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05 f250 crew sd 4x4 milage - 5/26/2008 3:10:43 PM

05f2504x4

Posts: 1
Score: 0
Joined: 5/24/2008
Status: offline

I was getting 17 mpg in town and 21 on hwy with k&n filter and dna exhaust last fall now spring is here and its been cut in half. dealer is saying there is a tsb on a vacume line at the back of the head on drivers side. Has anyone heard of this???? also i run nothing but sythetic oil in everything including diff's..... oh its a 5.4 gas