I have used Marvel Mystery Oil in my newer Cadillac and it hasnt done anything to it. I have also used Sea Foam. You pour it down the throttle body or the carb and when you get about a quarter of the can left you dump the whole thing down there and let it kill the engine. You wait five minutes and then put the gas to the floor to un-flood it and let it rev one good time. I did this to my 58 Buick Limited and it sounded like sand going through the exhaust and it smoothed the idle out perfect. It was running so rough the engine shook. Marvel Mystery Oil has never hurt my catalytic convertors. You have to be sure to drive them afterwards though to get the system flushed and let the convertor cool. Blaze -------Original Message------- From: dansgarage@xxxxxxxxxxxx Date: 11/26/05 21:53:35 To: mailing-list@xxxxxxxxxxxxxxxx Subject: [QUAR] IML: Marvel Mystery Oil in NEWER vehicles Hi All...I remmeber my Father showing me about the trick of dribbling water thru the carb to clean out the gunk/carbon buildup every so often and he also swore by using Marvel Mystery Oil. I am wondering if anyone has used MMO is a 'newer' vehicle, like a car or truck from 1995 - 2000? Does it mess up the fuel-injection system? Or actually help clean it up? Dan ----------------- http://WWW.imperialclub.Com ----------------- This message was sent to you by the Imperial Mailing List. Please Reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be Shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.Com/unsubscribe.htm ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm