I bought my first Xterra a day ago! XE with 127k, towing, no mods as far as I can tell. I've only owned one car before (2003 Pontiac Grand Am GT) and changed the oil myself the eleven years I had it. How hard or easy is it to change the oil/filter on these? Do they sit up high enough I can just slide under or do they need jacked up? I'd like to switch to synthetic. I'm working on getting a Hayne's repair manual for it, but in the mean time, any info/advice on a simple oil change and maintenance?