No.
I need to fill up the car with fuel before we leave on our road trip.
The VL250 does not have a fuel guage. You can use the trip meter to judge how long before you need to fill the tank.
No, the oil pump will fill it up in a second or two when you start the engine. But if the filter is mounted vertically is sure will not hurt to fill it up before you install it. Know that you must apply a thin layer of oil to the filter gasket before installing it.
Fuel gauge tells you when to fill up.
does not need to be removed
Not usually.
To effectively address an uneven subfloor before installing new flooring, you can use self-leveling compound to fill in low spots and sand down high spots. Additionally, you may need to install plywood or cement backer board to create a smooth and level surface for the new flooring.
No, it should be internally lubricated so there is no need to lubricate the starter.
You need to drop the fuel tank. Also you need to remove the hoses that go from the fill port to the tank.
Don't HAVE to, but it is a good idea.
if you mean expansion packs yes
I am not sure if you have sufficient information. If you fill your tank, you need to see how far it gets you before you need to refill again. Divide the number of gallons you fill in your tank by the distance, to get average gallons / mile. Then multiply that by the cost of fuel per gallon, to get dollars / mile.