That's what the tests said. I'll look and see if I entered that into the database which I can share - IIRC it was M1 but I may be mistaken.
More later - Larry T (66 MGB, 74 911, 91 300D) www.youroil.net for Oil Analysis and Weber Parts Test Results http://members.rennlist.com/oil PORSCHE POSTERS! youroil.net 800-583-8601 Weber Carb Info http://members.rennlist.com/webercarbs ----- Original Message ----- From: "John Freer" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Sent: Friday, May 23, 2008 5:49 PM Subject: Re: [MBZ] Here come the diesels! > 7500 miles on M1? If so, then MB is way off base as I just had the oil > changed in my CDI and it is telling me I have 13K to go or one year. > > On 5/23/08, LarryT <[EMAIL PROTECTED]> wrote: >> We've done a number of TBN (total base number) tests for customers >> over >> the years and they all seem to say the same thing - the additives that >> control the acids created by the combustion process are typically >> exhausted >> by around 7500 miles. Based on this I generally suggest oil be changed >> every 5000 miles or so which allows some safety factor as the TBN can be >> depleted at different rates depending on a variety of factors. Of >> course, >> some customers have special situations which dictate shorter changes. >> >> We have not done many TBN tests lately as the Lab has increased the >> price to $20 per tests - which is *my* cost. I should charge customers >> $20 >> plus a reasonable markup but I feel this is extreme and suggest customers >> considering TBNs to wait and see what the Oil Sample Report says before >> making any decisons. >> >> But I think 3000 mile changes are a waste of money - >> >> Larry T (66 MGB, 74 911, 91 300D) >> www.youroil.net for Oil Analysis and Weber Parts >> Test Results http://members.rennlist.com/oil >> PORSCHE POSTERS! youroil.net >> 800-583-8601 >> Weber Carb Info http://members.rennlist.com/webercarbs >> >> >> >> ----- Original Message ----- >> From: "Alex Chamberlain" <[EMAIL PROTECTED]> >> To: "Mercedes Discussion List" <mercedes@okiebenz.com> >> Sent: Friday, May 23, 2008 12:46 PM >> Subject: Re: [MBZ] Here come the diesels! >> >> >> > On Fri, May 23, 2008 at 9:32 AM, Allan Streib <[EMAIL PROTECTED]> >> > wrote: >> >> Go by what the owner's manual says, not the sticker the shop puts in >> >> your window. Those ALL still say "3 months/3000 miles" because they >> >> want the extra business. >> > >> > Chains like Jiffy Lube push the 3K mile change interval really hard, >> > too. I think the average person probably changes their oil more often >> > than necessary, and their coolant, brake fluid, and transmission fluid >> > not often enough. >> > >> > Alex >> > >> > _______________________________________ >> > 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 >> >> >> _______________________________________ >> 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 >> > > _______________________________________ > 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 _______________________________________ 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
