Here's a link to the information that has been collected by the rear wheel drive Volvo folks (owners of the 700 and 900 series). http://www.brickboard.com/FAQ/700-900/Fuel_LubricantData.htm

It provides alot of information on what type of cleaning does what and in witch way it helps. Theses guys are used to high mileage car. Being part of the 200,000 mile club is typical.

I hope it helps.

Eric



PT Cruiser Limited 2002 MTX of course! Mystique 1998 V6 MTX Sold.