Bought yesterday in Georgia and drove up to Detroit. Take a look below and give me some help, please.
2007 f350 Dually 4x4
Deltas at 60 mph are 8
Deltas at 75 mph are 12
Engine hours are 1061, is this high, low???
Fuel mileage is 14 hand calculated all freeway at 70-75mph. Why so low?
Also, vibration at 75 mph and higher, really bad, thoughts??
Thanks in advance,
Everything looks good so far.
Your wheels are most likely out of balance, so get them balanced and that vibration should go away.
But it also depends on the road and the length of your truck.
If you have a crew cab with a long bed (CCLB) and you are driving on concrete slab roadways, at 70-75 you will get strong vibrations/bouncing/shaking because of the length of the truck being the same as the length of the slab joints.
So you kinda fall into the joints at the same time or within close proximity, shaking the hell out of the truck.
It could also be your tires if they have an aggresive tread.
So there are a couple of things it could be, but start with the balancing.
It's also very good that you are monitoring the engine right off the bat.
You're ahead of the game!