Synthetic - change it at regular intervals and drive it at high speeds (60-70 or more) for long distances. Our 91 had carbon build up - I also put some stuff called Ferox 230 from www.ferox230sales.com - bought 4 bottles of concentrate specfically designed to break loose carbon. Each bottle treated 6 tanks od diesel IIRC. Worked like a charm. No more carbon. ;-)
As far as sludge, the synthetic oil (I like Mobil 1) will clean it out over the course of 2 or 3 oil changes. But high speed drives will help an engine tremendously. Also, if the engine suffers from sludge buildup the AT probably does also - again, Mobil 1 ATF is the answer - change it every 30K miles along with the filter - Good luck - Larry T (67 MGB, 74 911, 78 240D, 91 300D) www.youroil.net for Oil Analysis and Weber Parts Test Results http://members.rennlist.com/oil PORSCHE POSTERS! youroil.net Weber Carb Info http://members.rennlist.com/webercarbs . ----- Original Message ----- From: "Hendrik & Fay" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Sent: Sunday, November 25, 2007 9:11 PM Subject: [MBZ] What is the current thinking on internal engine cleaners? >I got an Izuzu with a lot of sludge build up in the motor. What is the > best way to go? > A bit of ATF 50k's before an oil change, seafoam or running a synthetic > oil? > > Hendrik > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.503 / Virus Database: 269.16.6/1150 - Release Date: > 11/24/2007 5:58 PM > > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
