It all depends on what kind of freightliner truck you are looking for. There are small freightliner trucks and there are large freightliner trucks available for one to purchase.
The best way to get information on how to buy a freightliner truck, would be to look on international's website. They sell a lot of freightliner trucks.
Which Freightliner? Freightliner manufactures of markets Class 3 through Class 8 vehicles.
No.
Typically on a sticker inside the left door frame.
It should be on the rear door jamb side of the door
You can purchase a freightliner truck near Mesquite, TX at Dallas freightliner. They have a huge selection.
Yes.
Depends on the engine in the Freightliner truck. Some require as little as 2 gallons, others require 11 gallons.
Vin Plate
I assume you mean either the Severe Duty model or the Classic XL, In the glove compartment, on the bottom or on the door, there should be a sticker... it'll have the VIN, rear end gear ratio, transmission model, axle specs, etc.
It shouldn't.