Several folks have asked me about flushing for the big change. Here's what I scribbled down. Please feel free to add, comment, take pott shots, etc, because this is not the Gospel according to Paul. Just my words on a CRT and it has not been reviewed by a jury of my esteemed peers such as the worthy readers of the BB. (So shit howdy I may have left som'thin' out)

Please don't assume this is a shameless plug. OK well you are right, but still I felt compelled to post it. Use it with whatever synthetic oil you want. Don't use it with olive oil.

DEE-LUCKS Ten Step Oil Flush Procedure for changing over to Synthetic Motor oil

Task 1: Cleaning the Injectors and Combustion Chambers.

1) With FUEL tank almost empty, add 8 oz. of Amsoil PI* (comes in 16 oz bottle) combustion chamber and fuel injector cleaner. (*You may substitute whatever FI cleaner you want/like - but results are not guaranteed).

2) Drive car for awhile and fill tank.

3) Drive normally (go to work and see Grandma and stuff) until fuel level is low and add 4 oz. of PI* and fill gas tank.

4) Repeat step # 3. You have now finished off the 16 oz bottle of PI.

5) Drive until near E then fill again. The idea is to get the fuel areas clean then, make sure all the cleaner is burned up and diluted. Plus some of this and the dirt/FI cleaner will end up in the oil. (Don't want this stuff in your new oil) Now time to get rid of the old oil.

Task 2: Changing the oil.

6) Buy a case of inexpensive oil with pretty good cleaning properties such as Shell Rotella, or Chevron Delo 400. I like to use Amsoil XL-7500 for this. Get car good and hot. I mean like 10 miles of hard driving. Drain the oil and change the filter. Put in the necessary quantity of inexpensive oil with pretty good cleaning properties. This oil will only be in the car a short while.

7) Drive the car for a week or a few hundred miles. The oil should still look sort of clean, unless the engine is REALLY dirty. Get the car good and hot again. Park it where you change your oil. Add Amsoil Engine Flush. Allow car to idle for 20 minutes. (Do not drive car with the Amsoil flush in the crankcase.)

8) Drain the oil, remove the filter. Allow to drain well. Blow out with compressed air (blow down dipstick tube, filler neck, etc). If your car has an oil cooler, or remote oil filter, open up and blow those lines out as well. You want to get as much of the dirty flush out as possible. allow to drain overnight if possible.

9) You may add the synthetic oil now and go the normal Volvo recommended oil change interval, (with a new filter) OR you may fill car with inexpensive oil with pretty good cleaning properties (you have a case) and drive 500-1000 miles, then change to synthetic and double your change interval with an oil filter change mid-interval.

10) Enjoy - You should notice a slight change in MPG, and in performance if your injectors/cc's were dirty. Just watch your oil level, as consumption may be elevated for the first few thousand miles. This temporary phenomena will halt, when most of the volatile cleaning is complete.