Welcome aboard!
With proper routine maintenance, these cars will last forever, and doing the maintenance work yourself will make ownership of the car a very economical experience. So, don't worry about the "lasting a bit longer" part.
These cars are well-known for their longevity (that's why I for one decided to buy my car)
One big thing to rememebr is oil. Oil changes are easy, but you have to be sure to use an oil that has a CH-4 or similar API rating (it'll be on the back side of the oil container), in addition to the SJ (or whatever the standard is now; it'll be S-something) rating. Almost all oils you'll see at the gas station will have the S-rating, but finding the oil with the C-rating is a bit more difficult. Most that you'll probably see will be 15W-40 in viscosity, such as Chevron Delo 400 or Shell Rotella (and they'll often be sold in 1 gallon jugs; this is good since your car takes 2 gallons of oil at each change). The reason for ensuring that you use the right oil is that the non-C-rated oil isn't prepared to handle the extra soot that diesels get into their oil (why the oil gets so black so quickly), which can lead to accelerated wear. As to which oil is best...I won't go there, except to say that if you do a search, you'll find more info/arguements on that than you ever wanted to see.
Hope that helps you some, for future reference if nothing else. Again, welcome aboard
