DIY procedure for oil change on a 2007 XC90 3.2L:

This is my first oil change on this car, so bear with me.

Tools:
1/4 inch ratchet
1/2 inch ratchet (shortest you have, less than 6 inches needed)
10mm socket
17mm socket
36mm socket (found it at Sears, largest they had in metric - $10)
10-15 gal oil drain pan

Optional tools:
Ramps
Funnel
Lots of shop towels in my case (hopefully you can learn from my experience)

Supplies:
Volvo supplied oil filter with o-ring ($8)
Volvo supplied 17mm crush washer ($.50)
8 quarts of oil, your choice, I used Castrol 10w30

Procedure:
1. Use 36mm socket to remove the oil filter housing, located on passenger side of engine about an arms length down. You need to remove it first to free up the seal in the filter that contains oil according to Volvo.

2. Use 10mm socket to remove 6 bolts that hold the black plastic skid plate. This was easy, took 2 minutes.

3. Use 17mm socket to loosen black drain bolt (yes, the one right there in front of you). NOTE: I used a 15 quart oil pan and positioned in 3 inches past the bolt, and I STILL missed the oil stream when it shot out about 18 inches. Beware, get the towels ready and move the pan as needed to avoid a mess. It wasn't that bad, just got my arm and little of my floor mat. I let the oil drain about 15 minutes and got about 7.1 quarts out.

4. Replace oil drain bolt with NEW crush washer. I just hand tightened it. Didn't leak.

5. Replace new oil filter and o-ring. Clean the threads, remove the filter and o-ring. Put new o-ring on and apply a finger layer of oil to it. Push oil filter on center piece. Reattach oil filter housing. I used a firm turn of the ratchet, but didn't want to tweak the plastic housing too much. No leaks after 50 miles. The housing says 25 foot of torque on mine, but I don't know how you could get a torque wrench on it.

6. Add oil. I added 6 quarts first. Pulled dipstick and could barely see any oil on it. I then added another quart and saw the oil just below the LOW mark. Waited 10 minutes to let oil drain (cleaned stuff up). Started car and let run 5 minutes (still cleaning). Turned off and let sit for 15 minutes (book says to do this). Same oil reading, so I added another 1/2 quart for a total of 7.5 and the stick is right in the middle.

7. Enjoy driving!!!

Hope this helps someone.

Nice write-up and detail!

You sure did! Thanks for the detailed post. I like doing my own oil change also.