called my dealer to schedule an oil change having completed my 1000 miles, they told me it really wasn't necessary as ford no longer uses break in additives. Still going to do it, better safe than sorry.
Fun going on some recreational drives.

 

I spell it coitus because it's always screwing up!

 

So many mixed feeling on this. I'm half way there (500miles) and want to tow but at the same time I keep feeling like I should wait.

 

I have a 400 mile tow coming up in two weeks. I currently have 80 miles on the truck. It's going to be tough to get 1000 miles on it by then, but I'm at least going to try. (I typically only drive about 6000 miles a year.) I won't make it, and when I don't I'm going to hook up that trailer anyway.

 

If the temperature of the metal gets hot enough to change the molecular structure, it will soften the surface instead of hardening it.

Note the *FIRST* word in this statement by Randy's ring and Pinion....IF!!!!

Now, in the 18 wheel heavy duty rigs I ran, the normal operating range of the differentials would be from 160*F to 220*F. ( The big rigs have axle temp guages in them)!! Now, in my 24 years in the trucking industry, MOST of the trucks I drove were hand me downs; but I did get to break in two brand new Kenworth's with less than 100 miles on the odometer when hooked to their first load. The axle temp guages never got anywhere near the *CAUTION* zone on the guage. The first service on these gear sets was at 250,000 miles with the company I worked for!!
But, if you don't feel comfortable towing before 1000 miles, then by all means DON'T.....your new Ford might be Found On Road Dead!!!!
And if you do feel comfortable towing right out of the box. Then by all means DO....and your new Ford might be Found Often Rescuing D******es!!
����!!

As an addendum, IF your gears are getting hot enough to change the molecular structure of the metals, you have bigger problems than improper "break-pin"!!!!

 

im only the messenger here but if you google ring and pinion breakin youll get alot of results. plenty of gear manufacturers require following a breakin routine otherwise your gear warranty is void. say its stupid, say you dont believe it, say its nonsense. it is what it is

 

What fluids should be changed first and when? Miles? Hours? Tranny? Diff? Oil?
Thanks

 

Still working on getting my first thousand in....getting closer. Figured better safe than sorry later on down the road.

 

Some say, "drive it like you stole it." You can't go wrong if you follow the owners manual recommendations. As previously stated, the break-in is more for the gear-train. Like any other forum all you're going to get are opinions. Just keep in mine that opinions will not fix your truck if you choice to follow a non-factory recommendation. We all take risks with our modifications but don't take to kindly when something fail because of our choice to take that risk with or modifications. REMEMBER! Ford can read these trucks like a book and certainly will take advantage in denying warranty work if it applys.

 

I forget where I got my impression from, but I have had the impression for a long time that the break in before towing was to lengthen service life of the gears. That even if you don't do the break in before towing, the gears are not going to break, but they will have a shorter working life. If I read the quote that Karl4Cat quoted, it seems to me that is what it is saying ~ longer working life. So even if you tow heavy from day one, it is unlikely fail within the manufacturer warranty period.

 

Needed a good laugh this morning thank you!!! LOL!! I'm actually trying to put 1,000 miles on mine before towing. Got a small trip with our 18,000lb 5th wheel next week. I'm at 700 miles now, don't think I'm going to make the 1,000 miles. Had a trip to Foxwoods Casino which is in Connecticut (we live in Mass) we took the truck instead of the wife's Honda Fit just to put miles on the truck. Boy these ride nice!! Will be the 1st tow with our 2017 for next weeks small trip. I understand everybody's reasoning with to tow or not to tow before 1,000 miles though. Like people say its not like constructions business's wait before they put these beasts to work right?

 

I really would not tell anyone what to do, especially after spending BIG $$$ on these trucks, but would be more than happy to share my break in experience on my 2012. We bought the truck just before a planned (approx 700) mile round trip hauling 4 motorcycles in my (at the time) 24' enclosed stealth trailer. So, I really didn't have enough time to put 250 miles on the truck prior to the trip let alone 1000. Hooked that big 6.7 up, stopped and started as easily as I could, but ran the motor in it's sweet spot which related to 78-80 mph and sometimes a bit faster than that. The truck barely knew that 8000lb load was back there. I know there will be members here that don't believe in towing at those speeds so please don't scold me on this. The truck pulled it so effortlessly that at one point I found myself discussing my driving habits with a Wisconsin State Trooper. I wont even say how fast I was going- I tried explaining to the officer that I had just purchased the truck, was getting used to it etc, etc, but no dice. Got written up for that one. Anyhow, sorry to get off topic, but I ran it hard without beating on it, let it stretch it's legs, and have had no engine or driveline issues whatsoever with it ( at 133k miles). In fact, this truck out of the all the others I have had (GMC, Dodge) performs better the harder I use it. From all the good things I'm hearing about these 17's I'm eagerly awaiting breaking this one in also. Enjoy your new Super Duty!!