I won't take any vehicle I own to a dealer or (worse yet) one of those oil change places unless I absolutely have to (I subscribe to the "if you want it done right, do it yourself" philosophy). I have changed the oil in my 08 SF Limited 3.3 twice so far myself and if you have a place you can work on it at, it is very easy.
You can get the 26320-3C100 Hyundai oil filter from the dealer. It includes two rubber O-rings you should replace when you replace the filter. My dealer is very expensive for the filter ($13), so I recently ordered 5 online for Savage Hyunai in Pennsylvania. ( http://tinyurl.com/8l64z7
). They are about $6 each there, but shipping added another $10, but $8 each still beats $13. They sell the crush washers also. Note that if you go to their site, they list the wrong filter for the Santa Fe (it may be the one for the 2.7L engine). You can go under Sonata instead to see the correct one.
Replacing the oil and filter is easy because you get to the filter from on top of the engine. Just take off the 6 bolts that hold the plastic engine cover off and unscrew the plastic top off the oil filter canister (when you take the it off, watch because it will have oil up in it and when you tilt it, it will spill on the engine). Get a tiny screwdriver or pick and get under the big O-ring at the top of the plastic top and the small one at the bottom. Then replace them with the new ones. The filter itself just sits in the canister and you simply screw the cap back on.
The drain plug takes a 17mm wrench and I put my car on those drive-on ramps to get to it. However, if you are small, you might be able to get to the drain plug without raising the car at all. I did not have new crush washers when I changed mine and just used the old one (twice now). It does not leak, but I did order them when I ordered the fiters for future use.
Hyundai recommends 5w-20 oil and that is what I used, but I think in the manual it shows 5w-30 as okay also. The only bad thing is it takes 5 1/2 quarts, so you will have half a quart left over until you change it a second time.
IF you can't or don't want to change the oil yourself, I would take it to a Hyundai dealer and have it done rather than one of the oil change places. The reason is that I think you want to have a Hyundai filter put in it rather than some other brand. If you go to Hyundai's tech site ( http://hmaservice.com
) I recall a TSB 05-20-002 that describes potential engine knock problems with aftermarket oil filters. It may just be Hyundai trying to scare everyone into using their filters, but I would not want to use a non-Hyundai filter then have something unrelated happen to the engine and have to fight Hyunai about it. It is cheap peace of mind to use their filters until the warranty runs out. [/align]