At the end of May I am driving my 2017 Discovery from FL to NY (to my house). (Leased it in March 2018 & battery was replaced shortly thereafter).
It has about 12,500 miles on it.
I had it serviced once around 5000 miles (or so) in NY. Dealer in NY said it does not need another service until 18,000 miles.
I recently topped off the coolant and will bring coolant in case it needs it.
My plan is to check the tire pressure and oil level (and top off oil).
There is a spare tire mounted underneath.
The vehicle will be packed up with items, but not towing anything and not roof mounting anything.
Any advice on what else I should do to prepare?
Thank you

 

If diesel, fill or just take a jug of Urea. If not . . .

 

I wouldn't sweat it.

I've driven my '17 diesel from Texas to Virginia, SC and NC multiple times a year with no issues. I just make sure my DEF is full-ish before I leave.

Enjoy. These are immensely comfortable on long hauls.

 

I'd just enjoy the drive as much as is possible on I-95. That's a fast road.

 

In a nearly new vehicle in a heavily trafficked part of the world for a relatively short distance you should be fine to just go.

However when I have taken trips to more remote countries I check (or take as appropriate) the following:

Tyre pressures
Spare tyre condition
Tyre pump
Oil level
Coolant level
Washer fluid level
Tyre tread condition (fine at this age)
Get an alignment done if you notice anything wrong already.
Assuming wiper blades are fine at this mileage otherwise check them.
I normally take a pack of mixed fuses, and a couple of relays.
Jump start pack and jumper cables
Water to drink, some food in case I have to wait a few hours for a tow truck
Blanket
Paper map
Head torch
Multi tool or small tool roll
Understand how to jack the car up
Car manual

Delete as appropriate...

 

Three years old with 12,000 miles in May?? Fill it up with gas when the little amber gas light comes on and keep driving

 

Ive driven the FL to Va round trip at least 3 times since i bought my 17 dusco august of 2019. I dont evem take def any more. Ypu get a 1500 mile warning light nd there are pleny of aces to get it between the 2 states. Just make sure you have sunglssses, cold beverages and keep alert. Lots of nuts on that road, i should know, im one.

 

Set the cruise for 4 over the speed limit sit back and enjoy the scenery as it passes by.

I do trips like that all the time in a 14 year old 168k mile LR3 and I stop and beat it off road in the middle. In February I did Augusta GA to Waterville ME and back. I also did Winter Romp and two days on the trails while I was in the area. Rovers are fantastic. Check the fluids, fill the gas and off you go.