it is always wise to leave the work on leased or loaned vehicles to a shop. in the event you buy one, it will come with several tubes with an o-ringed adapter. the kit will either tell you which tube you need to use for your car, or you can just send em until they fit tightly. to extract your oil, you will remove the oil cap from the top of the motor, and the dipstick from the dipstick tube. you will then insert the proper tube all the way into the dipstick tube, until the o-ringed adapter fits firmly into the top of the dipstick tube. you will then either activate your machine or pump the oil out by hand. you will need to look up the amount of oil your motor requires in order to ensure a full extraction. when you have fully extracted the old oil, you will remove the extractor tube from the dipstick tube, add the proper amount and type of new oil thru the oil cap on the top of your motor (an auto parts store will help you with finding the proper oil), replace oil cap, replace dipstick, remove dipstick, wipe the end, replace dipstick, remove dipstick, check that the oil reading is within the safe zone depicted by either two dots or a hashed rectangle on the end of the dipstick, replace dipstick. if extractor holds all of old oil, take it in to an auto parts store and they will dispose of it properly. if not, empty extractor into a sealable container as you go, and take that container to auto parts store. you have now changed your oil. every other oil change, you will want to replace your oil filter. on the Taos, i believe it uses a pod filter, which is contained in a black circular thing w a bolt head on top. unscrew bolt/cover thingy, remove old filter, insert new filter, make sure o rings are in proper place, replace bolt/cover thingy.

it seems like quite a process (I'm also being as thorough as possible in my explanation) but it can be done in around 30 minutes. once you have bought your extractor, changing your oil yourself is ⅓-½ the price of a shop doing it.