After owning my 04 with 111,000 miles for 5 weeks now I decided to change the oil myself. I bought an oil extractor from Amazon to remove the oil thru the dipstick tube. Never done that before...it worked great. No mess and I got to sit for about 5 mins. while it extracted all 8.5 qrts of oil. Glad I did it myself because whoever changed the oil last time did not replace the o- rings. Not only did they not replace them...they removed the old ones...none of them were there??? Why they were removed but not replaced is beyond me. Other than that fact that the oil filter cap was on extremely tight, everything went smooth. Used Mobil 0-40.