Re: [MBZ] Re: Transmission gear oil (was) 240D Manual Gearbox Fluid
On Sun, 17 Jul 2005 17:46:03 -0400 Marshall Booth [EMAIL PROTECTED] wrote: The reason to use ATF in Mercedes manual transmissions is because of the transmission materials. The phosphorus additives in EP gear oil make the oil acidic and quite chemically aggressive to the synchro materials that MB use. EP oils will DAMAGE and eventually destroy an MB manual transmission. ATF-type oils, on the other hand, use zinc-based anti-wear additives which are far more chemically inert toward non-ferrous metals. In my posting of a couple of days ago, I said to NOT use gear oil, but instead ATF. I also said that Marshall would have the exact explanation why (which I couldn't remember). This is the exact explanation. Craig
Re: [MBZ] Re: Transmission gear oil (was) 240D Manual Gearbox Fluid
ATF also makes for MUCH MUCH MUCH better shifting in below 0 conditions, when 90EP is as stiff as sorghum at below 0. Never worked for crap in Detroit iron manual transmissions, junky as they were. At 04:46 PM 7/17/2005, you wrote: The reason to use ATF in Mercedes manual transmissions is because of the transmission materials. The phosphorus additives in EP gear oil make the oil acidic and quite chemically aggressive to the synchro materials that MB use. EP oils will DAMAGE and eventually destroy an MB manual transmission. ATF-type oils, on the other hand, use zinc-based anti-wear additives which are far more chemically inert toward non-ferrous metals. Marshall -- Marshall Booth (who doesn't respond to unsigned questions) der Dieseling Doktor [EMAIL PROTECTED] '87 300TD 181Kmi,'87 190D 2.5 199Kmi, '84 190D 2.2 227Kmi, '85 190D 2.0 159Kmi, '87 190D 2.5 turbo 234kmi Diesel Technical Advisor MBCA, member GWSection http://www.dhc.net/~pmhack/mercedes/mbooth1.htm ___ For used parts email [EMAIL PROTECTED] For new parts see www.buymbparts.com For repairs see www.oldworldauto.com To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net
Re: [MBZ] Re: Transmission gear oil (was) 240D Manual Gearbox Fluid
The reason to use ATF in Mercedes manual transmissions is because of the transmission materials. The phosphorus additives in EP gear oil make the oil acidic and quite chemically aggressive to the synchro materials that MB use. EP oils will DAMAGE and eventually destroy an MB manual transmission. ATF-type oils, on the other hand, use zinc-based anti-wear additives which are far more chemically inert toward non-ferrous metals. Marshall -- Marshall Booth (who doesn't respond to unsigned questions) der Dieseling Doktor [EMAIL PROTECTED] '87 300TD 181Kmi,'87 190D 2.5 199Kmi, '84 190D 2.2 227Kmi, '85 190D 2.0 159Kmi, '87 190D 2.5 turbo 234kmi Diesel Technical Advisor MBCA, member GWSection http://www.dhc.net/~pmhack/mercedes/mbooth1.htm
